SEIKO ELECTRIC CO.,LTD.

B-TYPE CAM SWITCH

Rotating Operation(B-type)Pull/Push Operation(B-type)

Rotating Operation(JB-type)

Key Handle Operation

INDEX
Structure and Features

Compliance Standard
Rated Values and General Charactaristics
Rated Working Voltage and Current
Operational Instructions
How to Choose TypeOperation Method

Contact TypeTerminal CoverHandle Type
Name Plate Stand
Name Plate Type

Name Plate Letters

Indicator
Main Contact Diagram List
Order Method of Customized Contact Diagram
Precautions on Ordering Customized
Contact Diagram
Max. Number of Units & Max. Number of Contacts

Single Part Items

Outline Drawing
Handle Mounted Dimensions
Mounting Hole Dimension and Assembly Method

Technical Reference
Order Sheet©2017.08. SEIKO ELECTRIC.CO.,LTD.

Structure and Features●Mechanical Case(Operation Mechanism Unit)
High-Durability Mechanical Structure
based on PBT Resin.(Flame Retardant
Grade UL94V-0)

Contact Unit
Featured with High-Reliability contact unit
thanks to High-Quality Contact,Spring,Press
and other Hi-Quality Parts.
One(1) unit can have two(2) contacts in it.

CamThis Cam Design allows one Cam to beconnected with other Cams,making
the Unit Design Shaft-less,whichleads to a variety of contact diagram.
Up to 20 Cams can be connected.

Lot No.
End LabelShowing the Model No.

End Plate

Lot No. is displayed at thebottom of Mechanical Case.

Contact

Several Choices of Contact Types:
Contacts available Standard(Silver Single)
Contact,Silver Twin contact and Gold Twin
Contact for minute Voltage/Current.

Handle
You can choose a proper handle
from various shapes and colors.

Terminal Unit
Terminals show a staggered
arrangement as shown in the photo.
They are easy to be wired.

Name Plate Stand
Name Plate Frame
Screw free, One-Touch attachement
Types are available.(JB-Type,YB-Type)

Name Plate Frame

Characters Inscription is available
at your own request.

Compliance Standards
NECA C 4520: General Clauses on Control Switch
NECA C 4522: General Clauses on Control Cam Switch
JIS C 8201-5-1: Low-Voltage Switch Unit and Control Unit - Chapter No.5
Control Circuit and Switch Element-Part 1:Electrical Equipment Control Circuit.
JIS C 0920: General Clauses on Water-Proof Test on Electric Equipment and Wiring Materials.
IP40 (Panel Surface)

Rated Values and General Charactaristics
See page A-71 for explanation about Twin-Contact.

Specification Item

Single Contact(Standard)

Silver Contact

Twin Contact
Silver Contact(V-Type)Gold Contact(G-Type)

Rated Insulation Voltage
Rated Flowing Current
100MΩ or up (500V Megger)

Contact ResistanceContact Resistance(Initial Value)or lessor lessor less

Contact

or underTerminal

or underTemperature Rise

Impact ResistanceVibration Resistance
Storage Temparature Range(but,Shall never cause freezing.)

Operating Temparature Range(but,Shall never cause freezing.)(but,No dewdrops.)

Operating Humidity Range/ One (1) MinuteWithstand Voltage/ Three (3) Times

Impulse-Withstand Voltage

Minimum Operating Voltage
and Current(Its ambient
circumstances must be good.)
Overcurrent Resistanceseconds

Switching ON/OFF Frequency

1,200 times / hoursecondSwitching ON/OFF Speed

1 million times

300,000 times

AC

700,000 times

100,000 times

DC

300,000 times

100,000 times

Mechanical Durability
Electrical Durability

seconds

seconds

Rated Working Voltage and Current(Beaking Performance)
Rated
Working
Voltage(V)

DC (Time constant:25ms)

AC (Power Factor:0.4)

Rated Working Current (A)Rated Working Current (A)Resistance Load
Standard

V-TypeInductive Load

G-TypeStandard

V-TypeResistance Load
G-TypeStandard

V-TypeDC (Time constant:25ms)

Rated
Working
Voltage(V)

Rated Working Current (A)2-Contacts Series Resistance Load 2-Contacts Parallel Resistance Load
Standard

V-TypeStandard

V-TypeG-TypeInductive Load
Standard

V-TypeG-TypeOperational Instrutions
Instruction on Rotating Operation
Descriptions

Operation Method
Manual Return(Notch)

The handle stays at the specified position even after detouching the hand from the handle.

Spring Return

The handle returns automatically to the origin from specified position.
(Limit is set at the point of origin.)

Manual & Spring Return (Hybrid)

Composite operation based on Manual and Spring Return Methods.

Spring Return with Position-Sensing(Click)In this method,you can feel every position at which the handle is set during your operation.

Operational Position Code45° Notch(Separation fromthe center at 22.5°）

30° Notch

45° Notch

60° Notch

60° Notch(Separation fromthe center at 30°）

90° Notch

90° Notch(Separation fromthe center at 45°）

Manufacturable Operational Angle
Remarks : ○⇒Manufacturable△⇒Consultation needed×⇒Non-Manufacturable

Notch Angle
Operation Method
Manual Return(Max. Operational Angle:360°)

Spring Return(Max. Operational Angle:90°
on single side)

Manual & Spring Return Hybrid(Max. Operational Angle:90°
on single side)

Spring Return with
Position-Sensing(Click)(Separation fromthe center at 22.5°）(Separation fromthe center at 30°）

(Separation fromthe center at 45°）

How to Choose Type

Basic TypeContact Diagram
CodeContact
Type

Operational
MethodNP Letter

NP StandHandle TypeNP Type

Indicator

Operational Method(See A67~A-70 for Details)

Basic Type

This shows NP shape & attachment type.
Choose your desired one from the list below.

Spec.

Code

Terminal
Cover

Screwing TypeChoose your desired Operation Method.

Contact Diagram Code(See A79~A-98 for Details)
Choose your desired Contact Diagram from the List ofContact Diagram.
Fill your desired Contact Diagram specifcations on theorder sheet on A-115~A-117 for submission to us.

B(In case of Made to order Contact Diagram)Pls specify your order by writing 【No. of Unit+X】 as follows;
For Example： In case of 3 units ... 3X
In case of 5 units ... 5X

Screwing Type(Large NP)

Contact Type(See A71 for Details)
Choose your desired contact the choices below.
Standard(Silver Single) / Silver Twin Contact / Gold Twin Contact

AB

Terminal Cover(See A-72 for Details)
Choose whether Terminal Cover is requied or not.

One-Touch Attachment Type)

Handle Type(See A-72~A-73 for Details)
Choose your desired Handle Type and Color.

Name Plate Stand(See A-74 for Details)
Choose your desired color of NP stand.

JB

Name Plate Type(See A-74 for Details)
Choose your desired type(materials) of Name Plate.
NP Size

One-Touch Attachment Type)

Name Plate Letter(See A-74~A-77 for Details)
Specify your desired letter to be used for Name Plate.

Indicator(See A-78 for Details)
Indicator shall be attached only when Spring Return(45°）
is selected as operational method.
*Indicator cannot be attached to AB-type,YB-type or
Acrylic Name Plate.

YB

NP Size

Operation Method
In Case of Rotating Operation Only
Choose the proper code in the list below in case of Rotating the Handle to Left or Right Only.

Code
Rotating

Manual Return

Spring Return

Spring Return(Click)

Spring Return to 2.

Spring Return to 8.

Manual return from 8 to 1.
Spring Return from 2 to 1.

Operation
Pattern

Code
Rotating

Spring return from 8 to 1.
Manual Return from 2 to 1.

Operation
Pattern

In Case of Rotating and PUll/Push Operations
Switch Unit with Handle for Pull/Push Operation is manufacturable only in case that its operational angle is 45° or 90° .
Pull/Push Operation means that an operator should push or pull the handle for rotating it.

Explanation of
Pull/Push Operation

Manufacturable Operational Position

Top View
SwitchBody
HandlePushing
Position

90° Notch

45° Notch

Pulling
Position

90° Notch(Separation fromthe center at 45°)

Code of Pull/Push Operation is composed of 【Rotating Operation Code】+【Pull/Push Operation Code】+【Pull/Push Position No.】.

Code
Rotating

Pull/Push

Pull/Push Operation

Spring Return to
Pushing Position
Manual Return

Spring Return to
Pulling Position

Rotating Operation
Pushing Position

Pulling Position

Unrotatable

Rotatable

Rotatable Unrotatable

Unrotatable Rotatable
Rotatable Unrotatable

Rotatable Unrotatable
Unrotatable

Rotatable

Fill in the □ the proper code of Operational Position for Pull/Push Operation.
Mark [0] in case that Pull/Push Operation is needed at every Operational Position.
Contact us for details as for the comninations of manufacturable units.

Reference

Example of Commonly Used Pull/Push Operations
Code
Rotating
Operation
Pull/Push
Operation
Pull/Push
Position

Manual Return

Manual Return

Rotating Operation is Possible at Pulling Posision/Spring Return to Pushing Position

Every Position

Rotating Operation is Possible at Pulling Posision/Manual Return to Pushing Position

Every Position

2

1

1

Operational
Plan

Code
Rotating
Operation
Pull/Push
Operation
Pull/Push
Position

Manual Return
Rotating Operation is Possible at Pushing Posision/Manual Return to Pulling Position

Every Position

1

8

Operational
Plan

Code
Rotating
Operation

Spring Return

Spring Return

Pull/Push
Operation

Rotating Operation is
Possible at Pulling Posision/Spring Return to Pushing
Position

Rotating Operation is
Possible at Pushing Posision/Spring Return to Pushing
Position

Rotating Operation is
Possible at Pulling Posision/Manual Return to Pushing
Position

Pull/Push
Position111

Rotating Operation is/Possible at Pulling Posision

Rotating Operation is/Possible at Pushing Posision

Rotating Operation is Possible at Pushing Posision/Manual Return to Pulling Position

1

Operational
Plan

Code
Rotating
Operation
Pull/Push
Operation
Pull/Push
Position

Operational
Plan

Manual Return
Rotating Operation is/Possible at Pushing Posision

Spring Return
Rotating Operation is/Possible at Pulling Posision

Spring Return to Pulling Position
Every Position

1

8

2

Key-Handle Operation(Only for Rotating Operation)
This section explains how to select Key-Handle with an original key.(Only 45° and 90° Operation
can be manufactured.)
Key-Handle Code is configured with [Rotating Operation Code + Key's Insertion/Pulling position No.]
Fill the Key's Insertion/Pulling Posision No. into □.Fill □ with [0] if you insert/pull the Key at every
operational position. Choose the Key No. when you order.

In Case that Key is Inserted into Only One(1) Place:
Code

Rotating
Operation
Operation Angle
Mark

Drawing of
manufacturable Notch

Key's Insertion/Pulling Position

Applicable Key

KEY No.

Key's Shape

Convex Shape
ManualReturnAt any1 place

Concave ShapeRemarks
Standard
Items

Convex Shape(Different Pin Position)Made

SpringReturnAt 1.

SpringReturnto 2.

SpringReturn
to 8.

At 2.

At 8.

At 1.
or 8.

At 1.
or 2.

Convex Shapeto(Only for Clockwise Operation) Order
Convex Shape(Only for Unclockwise Operation)

Concave Shape(Different Pin Position)
Concave Shape(Only for Clockwise Operation)
Concave Shape(Only for Unclockwise Operation)

In Case that Key is Inserted into Two(2) Places:
Code

Rotating
Operation Operation
Angle
Mark

Drawing of
manufacturable Notch

ManualReturnKey's Insertion/Pulling Position

Applicable Key

Key's ShapeKEY No.

Convex ShapeAt Two(2)places(8. & 2.)

Concave ShapeRemarks

Made
to
Order

In Case that Key is Inserted into More than Three(3) Places:
Code

Rotating
Operation Operation
Angle
Mark

Drawing of
manufacturable Notch

Key's Insertion/Pulling Position

Applicable Key

KEY No.

Key's Shape

Convex Shape

ManualReturnAt
More thanThree(3)placesConcave Shape

Reference<Key Diagram for Reference>
Key No. indicated

Key

Key

Remarks

Made
to
Order

Contact TypeBe sure to specify a proper Integration Unit by referring to the table below,if you choose Silver Twin Contact
or Gold Twin Contact.
Designation Example of Integration Units of Silver Twin/Gold Twin Contact
CodeContact Type
Nothing Marked

Silver Contact (Standard)

Silver Contact is applied to all the contacts.(Standard)

Silver Twin Contact for All Units

Silver Twin Contact is integrated into all the units.
Silver Twin Contact is integrated into the 5th unit.

Silver Twin Contact only for
Units Designated in □Gold Twin Contact for All Units

Silver Twin Contact is integrated into the 1st~3rd units.

Silver Twin Contact is integrated into the 1st and 10th units.
Gold Twin Contact is integrated into all the units.
Gold Twin Contact is integrated into the 5th unit.

Gold Twin Contact only for
Units Designated in □Gold Twin Contact is integrated into the 1st~3rd units.
Gold Twin Contact is integrated into the 1st and 10th units.

Reference

Differences between Single contact and Twin Contact
Structure of Contact Unit of
B Type Cam Switch

Wipe Structure of Contact

MovableContact

Fixed
Contact

MovableContact

Silver Single Contact (Standard)
Movable Contact

As illustrated in above, the movable contact slides by about 0.2㎜ fromthe start of contacting to the end of the contacting.The material used in
the movable contact in Twin Contact is phosphorous bronz.
Therefore, the contact has a wiping function to wipe wipe off any
oxide-coating or sulfide-coating which happens on the contact surface.

←With the convex-shape of the movable contact,
stable contact resistance was realized.

Silver Twin/Gold Twin Contact
MovableContact

Fixed Contact

・Higher Contact Reliability (Silver Twin Contact)
We adopted cross bar contact(Bonded contact),not plated contact in order to make its contact
reliability higher.This type of contact has been used in railway trains thanks to such heigher reliability.
・Minute Voltage/Current Usage (Gold Twin Contact)
In the field of minute current, coating or sulfide caoting on the contact surface cannot be removed
even by use of arc,which may lead to a rise in contact resistance and cause a contacting failure.
However, Gold Contact(Cross bar contact is used for its movable contact) is able to control any risein contact resistance thanks to its materials' property.Unlike plated contact,no pinholes happen.
Therefore,very high level of reliability is secured in case of Gold Contact.
Gold Twin Contact has been used in chemical plants,especially in the environment where any coating
tends to happen on contacts and in the field of minute current used for sequencer control and so on.

Terminal CoverSide Terminal Cover is for protecting the terminal unit from workers' fingers and hands.
Upper Terminal Cover is for protecting the terminal unit from falling parts.
The combined use of Side Cover and Upper Cover is impossible.

Specification

No Terminal Cover Side Cover(1~6 Units) Upper Cover(1~12 Units)

Code

No CodeAppearance

Side Cover covers from the side of End-Plate to 6th units in case of 7 or more units.

Handle Types
No Handle
Code

Handle (Standard Size)
Handle Shape

Chrysanthemum

Pistol

Arrow

Boat

Black

Code

Red

Green

Appearance

Handle Shape
Black

Code

Red
Green

Appearance

Oval

Stick

Handle (Large Size)
Handle Shape
Black
Code
Red
Green

Large Chrysanthemum

Apppearance

Special Handle
Handle Shape
Black
Code
Red

Ball

Green

Apppearance

Color

Specification

Black

Color close to N1.5
Color close to 7.5R4.5/14
Color close to 7.5BG3/3.5

Red

Green

Large Pistol

Large Oval

Large StickName Plate Stand (Escutcheon)
B-Type,AB-Type,YB-TypeJB-Type

Code

Specifications

Code

Specifications

No Name Plate StandBlack(Color Close to N1.5)

Black(Color Close to N1.5)

Black (for1.0mm Acrylic Name Plate)Gray Blue(Color Close to 7.5BG4/1.5)※
Gray Blue Color is not available in case that Basic Type is JB or YB-Type.

Name Plate Type(mm

Specifications / Descriptions

s
s
e
n
k
c
i
h
T

Code

)

Standard Aluminium NP(Screen Printing+Baking Clear Coating)

Stainless Name Plate(Delustering Polish)
Acrylic Name Plate(Backside's Inscription Letter Color:Black) ※Acrylic Name Plate is not available in case that Basic Type is YB-Type.

Name Plate Letters
Specifications

Code
Nothing Filled

Remarks
No Name Plate in case of No Mark.

No Name Plate
Blank
Inscriptions of Customized Letters

Letter-Printed NP

See pages A-75~A-76 for the inscription position before specifying the position andletters of inscription.
See pages A-77 to checkthe list of Printed Name Plates and choose your desired
Name Plate Code.(1~3 digits)

Reference
Inscription Letters(Characters) Specification
Specifications

Language

Font

Full-size Japanese(Kanji,Hiragana,Katakana) andHalf-size English Letters & Figures

Roundish Gothic Type

Letter Width

Depends on the number of Inscribed Letters

No. of Letters
Inscribable(per line)

N・S

Up to 10 Full-Size Letters/20 Half-Size Letters of Standard letter Height.

P・Each Operation
Position

Up to 4 Full-Size Letters / 8 Half-Size Letters of Standard letter Height.

Details of Inscribed Letters
Letter Position

Name Plate Spec
B

AB

JB

1 lineYB
Full-Size 10 Letters

2 lineS
Each
1 lineOperation
Position 2 line

Half-Size 20 Letters
Full-size & Half-Size
Mixed Letters

K (Key No.)

Standard Letter Height(Sample1)
Max No. of letters Inscribed for N section, B-Type

Full-Size 10 Letters

Full-Size 10 Letters

Half-Size 20 Letters

Half-Size 20 Letters

Full-size & Half-Size
Mixed Letters

Full-size & Half-Size
Mixed Letters(Sample2)
Max No. of letters Inscribed for S section, B-Type(Sample3)
Max No. of letters Inscribed for
Each Operaion Position, B-Type

Inscribing Position
When the 1st line inscription and the 2nd line inscription coexist, the 1st line inscription should be doneon the 1st line,and the 2nd line inscription on the second line.
In case of Key Handle, the shaft hole diameter in the center of the name plate shall be Φ15.

shows the hole for an indicator.

NP TypeName Plate Demensions

Operation NP letters' Position

Operation NP letters' Position

Operation NP letters' Position

Operation NP letters' Position

B Type(Screwing)

Need to consult with us if you needinscription for "1" on the name platewith an indicator.

NP TypeName Plate Demensions

AB Type(Screwing)

Parts code may be printed in the right lower section of the aluminium name plate.

NP Type

Name Plate Demensions

Operation NP letters' Position

Operation NP letters' Position

Operation NP letters' Position

Operation NP letters' Position

JB Type(One-Touch)

Need to consult with us if you needinscription for "1" on the name platewith an indicator.

NP TypeName Plate Demensions

JB Type(One-Touch)Parts code may be printed in the right lower section of the aluminium name plate.

Printed Name Plate
Letters Pre-printed Name Plate is available only when Basic Model is A-Type,AB-Type or JB-Type.
(Except for Key-Handle type.)[Remarks] ○：Printed NP is available

×：Printed NP is Not available [Choose N-X(to be inscribed)]

1

2

3

4

5

S

B-Type AB-Type JB-Type

Code

Printed Name Plate with Indicator hole.
Code
1
N
7
6
8

2

3

4

5

S

B-Type AB-Type JB-Type

Code

Code

N

6

7

8

Indicator
Indicator can be additionally mounted only when Operation Method is Spring-Return-Type(Operation Angle45°).Indicator cannot be mounted in case that the basic type is AB-Type and YB-Type,and in case that Acrylic Name Plate is used.
※Special name plate designed for indicator is used in case that an indicator is additionally mounted.
Code

Indicator

Nothing Filled

W/O Indicator

Indicator

W/ Indicator

Red

Green

Indicator-mounted NP

List of Major Contact Diagrams
Applicable Types：B-Type, WB-Type, WBO-Type, TB1S-Type (TB1-Type), EB-Type, LB-Type, and MSB-Type.
See and carefully check the following table for choosing a proper Contact Diagram.
The number of the units, which can be manufactured, depends on the type and operational specifications you need.

Maximum Number of the Unit you can Choose per Type.

CS

Operational Specification
Type

Rotating

ManualOperation

SpringReturnManualOperation

ManualOperation

SpringReturnManual Operation

Pull/Push

SpringReturnSpring Return

B
WB
WBO
TB1S(TB1)

B
T
Y
P
E

EB w/Signal Light

EB w/o Signal Light
LB w/Signal Light
LB w/o Signal Light
MSB w/Signal Light
MSB w/o Signal Light

Remarks
Contact’s Operation Types and How to Indicate them
Operation is indicated from the handle of Operation Switch.

Operation Position No.

Handle side
First unit

Terminal No.
Second unit

Contact's OperationType

How to Indicate

Standard Terminal Numbers go like this：11-12, 13-14, 21-22, 23-24・・・

Details on Operation

Single Contact

The contact between the terminals turn ON at the designatedpositions(●).

Continuous
Contact

Contacts on the thick horizontal line turn ON continuously.

Lap Contact(For 45°/90°
Operations only)

Two or more contacts. One of the contacts turns OFF at the
halfway of a notch while other(s) turns ON. Lapping points
are connected with a dotted line.

Residual Contact(For Spring-Return
System・For 45°
Operation only)

Contact turns ON at a 〇-marked position.
Even when an operator returns the handle to the original position,
contact stays ON. Then, when the operator moves the handle in an
opposite direction, contact turns OFF and returns to the original status.

Contact turns ON or OFF by pulling or pushing.
Contact doesn't ON or OFF by rotating.

Pull/Push Contact

means contact turns OFF at pushing position,and turns ON at pulling position.
means POC turns ON at pushing position, and turns OFF at pulling position.

UsageB-Type NP Indication Example.

Contact Diagram Codes and Contact Diagram Chart

N-X
01230

AC Ammeter
3-Wire System
C.T. 2 points V－Connection
Meter
Off-Circuit Disconnecting System

N-158
0RST0
AC Ammeter
For Measuring at two (2) ormore points.
Meter
Off-Circuit Disconnecting System

N-158
0RST0

AC Ammeter
3-Phase 3-Wire system
C.T. points Switchover
Meter
Off-Circuit Disconnecting System

N-155
AC Ammeter

0RSTN

3-Phase 4-Wire system
C.T. 3points Y-Connection
Meter
Off-Circuit Disconnecting System

01234
AC Ammeter
3-Phase 4-Wire system
For Measuring 2 or morepoints.
Meter
Off-Circuit Disconnecting System

UsageAC Ammeter

B-Type NP Indication Example.

Contact Diagram Codes and Contact Diagram Chart

N-155

0RSTN

C.T. 4-points Switchover

CS

B
AC Ammeter

0RST

3-Phase 4-wire System
C.T. 3-points Switchover
In case of using Differential
Relay.

AC Ammeter

01234567

C.T. 7-points Switchover

AC Ammeter

TSR0RST0

3-Phase 3-Wire System
2-Lines

AC Ammeter

0
C.T. 1-points Switchover

T
Y
P
E

UsageB-Type NP Indication Example.

Contact Diagram Codes and Contact Diagram Chart

N-152

AC Voltmeter003-Wire System
C.T. 2-points
V-Connection

AC Voltmeter

3-Phase 3-Wire System
１-LineSingle Phase 1-Line

AC Voltmeter
3-Phase 4-Wire System
P.T. 3-Points
Y-Connection
Between Phase Lines

AC Voltmeter
3-Phase 3-Wire System
2-Lines

AC Voltmeter

3-Phase 4-Wire System
Between Phases andBetween Phase Lines

AC Voltmeter
3-Wire System
P.T. ２－Points
V-Connection

0RST0

１Unit２Units４Units５Units３Units

C
S

B
T
Y
P
E

１Unit

２Units３Units

４UnitsSingle contact and Lap contact of "3X072" may cause a lapping momentarily.
See Page A-100 for more information about Momentary Lap.

C
S

B
T
Y
P
E

５Units６Units７Units８Units９Units

10Units

１Units４Units２Units３Units２Units

C
S

B

３Units４Units５Units６UnitsTYPE

２Units

３Units４Units５Units６Units２Units３Units４Units５UnitsSingle contact and Lap contact of "4X139" may cause a lapping momentarily.
See Page A-100 for more information about Momentary Lap.

６Units

７UnitsCS

１０Units

８UnitsB
T
Y
P
E

４Units３Units８Units４Units７Units６Units

９Units６Units３Units５Units６Units１０Units

１UnitC
S

B
２Units３Units４UnitsTYPE

５Units

６Units７Units８Units

C
S

B
T
Y
P
E

９Units１０Units

５Units

３Units６Units２Units６Units４UnitsU1206()

３Units１Unit２Units

１Unit

２Units

C
S

B

１Unit

２UnitsTYPE

３Units

４Units５Units６Units【With Pll/Push Contact】 Below listed contact diagram's Pull/Push posision is １．

２Units

C
S

B
T
Y
P
E

３Units【With Pll/Push Contact】 Below listed contact diagram's Pull/Push posision is １．

４Units５UnitsOrder Method of Customized Contact Diagram
Contact Diagram Configuration is composed, as below-illustrated, in the order of Pull/Push Contact,Normal Contact(Single Contact/Continuous Contact), Lap Contact and Residual Contact from the Handle.Therefore, please be sure to
write down in the order of Pull/Push Contact, Normal Contact(Single Contact/Continuous Contact),Lap Contact andResidual Contact from the upside when you draw the Contact Diagram.

Assembling Order ofEach Contact

Pull/Push contact

Normal contact
Lap contact

Residual contact

Rotating operarion
mechanical unit

Pull/Push operarion
mechanical unit

Describing Order ofEach Contact
This contact turns OFF on Push position and turns ON on Pull position.
This contact turns ON on Push position and turns OFF on Pull position.

Pull/Push contact

Normal contact(Single contact/
Continuous contact)

This contact turns ON at the (2) position.
This contact turns ON at the (2) position thuru the (1) position.
One of the Lap Contacts turns ON before another turns OFF
during a notch.

Lap contact

This Contact turns ON at the (2) or (8) Position and stays ON until
returning to the (1) Position.
(Residual Contact shall be applied to Spring Return System.)

Residual contact
No contact

Instructions & Precautions on Ordering Customied Contact Diagram
Principles on Unit Combinations
Single contact and Continuous contact may be combined in same unit
Each of other types of contacts ( Pull/Push, Residual and Lap Contacts) cannot be combined withany of the rest ( other types of contacts) in the same unit.
(This is because one (1) cam is used per unit. See Cam List on Pages A-101〜103 as for the Contact
Combinations Manufacturable.)This unit cannot be manufactured because Normal Contact and Lap Contact
are combined in the same unit.

One (1) Unit Comprises of Contact with two (2) circuits.
Because the cam(cam's shape) is positioned at the angle of 180° of a couple of contacts,
your requested contact diagram may not be manufactured in one (1) unit.
(Especially in case of ﬁve (5) notches：180° or more, two (2) unit shall be conﬁgured as shown below.)Your requested Contact Diagram
The Contact turns ON.

The two (2) units are made. 13-14 and 23-24
shall be defined as No Contact and they are
not used.

Manufacturable Contact Diagram

As shown in the left figure, the Cam rotates at 180° ,the contact on the opposite side turns ON.

Operating Angle and Operating Leeway Angle
As for Operating Angle and Operating Leeway Angle of Normal Contact (Single/Continuous Contacts),
and Lap Contact, such angles are set as follows for controlling.

Normal Contact
turns ON at (1).
Normal Contact
turns ON at(8) and (2).
Lap Contact
turns ON at (1).

Normal Contact
turns ON at (1).

Lap Contact
turns ON at(8) and (2).

Normal Contact
turns ON at(9') and (2').

Notch Angle:45°

Notch Angle:30°
Lap Contact cannot be manufactured in case of 30°and 60°.

Precautions on Momentary Lap

As for Single Contact, Continuous Contact and Lap Contact, leeway (allowance) angle of ±3° is set for their respective
operation angles. Therefore, in case of the following Contact Diagram in which Single Contact (or Continuous Contact) and
Lap Contact coincide, such Contacts may cause a lapping momentarily.

The Max Operating Angle of 11-12 Single or Continuous Contact：15°＋3°＝18°.
The Max Operating Angle of 23-24 Lap Contact： 28°+ 3°＝31°
Thus, their Max Operating Angle to Operating Angle 45° shall be 18°+ 31°＝49°,
this may lead to a momentary lapping.

Single orContinuous
Contact

The Max Operating Angle of 13-14 Single or Continuous Contact：15° ＋3°＝18°.
The Max Operating Angle of 21-22 Lap Contact： 28° + 3°＝31°
Thus, their Max Operating Angle to Operating Angle o45° shall be 18°+ 31°＝49°,
this may lead to a momentary lapping.

Lap Contact

Max.Number of Units & Max Number of Contacts
In cese of General TypeOperational
Mathods

Rotating

ManualReturnSpring Return/ComplicatedType

Pull/Pushーー

ManualReturnSpring Return/ComplicatedType

ManualReturnSpring Return/ComplicatedType

Manual Return Manual Return Spring Return Spring Return

Click TypeーMax. No. of Units
Max. No. of SimultaneousOpen Contact

Max. No. of Lap Contacts
Max. No. of Residual Contacts
Max. No. of Pull/Push Contacts

Max. No. of SimultaneousOpen Pull/Push Contact

In cese of Key Handle TypeOperational
Mathods

Rotating

ManualReturnSpring Return/ComplicatedType

Max. No. of Units
Max. No. of SimultaneousOpen Contact

Max. No. of Lap Contacts
Max. No. of Residual Contacts

Contact us about the manufacturing of【90°Spring-Return-Type Operation System.】・Maximum Number of Simultaneously Open Contacts means that the number of contacts, which stay ON at each position and also which are shifting from
ON-status to OFF-status in case of rotating operation, is most in number.This Maximum Number of Simultaneous Open Contacts means the maximum numberof such type of contact.However, the number of Simultaneously Open Contacts manufacturable in case of Spring-Return means the maximum number of such
type of contact in the process of returning to the central position from the left or right position.
・Complicated Type indicates that one side uses Spring Return System and other side uses Manual Return System.
・As for unit integrated with Pull/Push Contact and Residual Contact,They can be manufactured up to three(3) units.
・As for Twin contact, contact us for technical details.This type has fewer contacts due to diﬀerences in Contact Pressure Speciﬁcation.
・Be careful as for Rotating Operation in case of Manual Return, the operation may come to stop on the
halfway between the notches. Therefore, be sure to conduct the switchover operation without fail.

Reference

CAM List
Notch CAM

Type of CAM

Notch CAM
Type of CAM

Notch CAM
Type of CAM

Residual Contact(3 Notches)

Residual Contact(4 Notches)

Pull/Push Contact

Part Items
Terminal Covers
Side Cover
Model

Code

Application

Dimensions

1~3Units

4~6Units

Side Cover covers from the side of End-Plate to 6th units
in case of 7 or more units.
Choose B-CL in case that Pull/Push contact is integrated.

Upper Cover
Model
Code

Application

1~3 Units

4~6 Units

7~9 Units

10~12 Units

Dimensions

Handle Cover
CodeApplication Type Application Handle

Stick
PistolOval

B-TypeChrysanthemum

Dimentions

OutlineDimentions

Magnet

Boat
Arrow
Large
Chrysanthemum

Dimentions

Large Oval
AB-TypeDimentions
Large Stick
Large Pistol

Dimentions
Chrysanthemum

Arrow
JB-TypeStick
PistolOval

Dimentions
Magnet Installation.

"A-CH2" can be used for all type of handle in case of YB-Type.

HandleFixing screws are not attached to the Handle,need to order Screw Set shown on Page A-107 separately.
Refer to page A-72~73 for the dimension of handles.

Model

Key No.(Fill When Key Handle Operation Only)
KeyNo.

Handle Color

Code

Color

Spec
Convex Shape
Convex Shape

KeyNo.

Spec
Concave ShapeConcave Shape(Defferent Pin Position)(Defferent Pin Position)

Green(Close to 7.5R4.5/14)

Convex Shape(Clockwise)

Concave Shape(Clockwise)

Red(Close to 7.5BG3/3.5)

Convex Shape(Unclockwise)

Concave Shape(Unclockwise)

Convex Shape(More than 3 Positions)Concave Shape(More than 3 Positions)

Convex Shape(2 Positions)Concave Shape(2 Positions)Black(Close to N1.5)

Standard Size Handle
Large Size Handle
Shape
Code
Shape
Code
Chrysanthemum
Large Chrysanthemum
Large Pistol
PistolLarge Oval
Oval
Stick
Large Stick
Arrow
Boat
Arrow Handle, Ball Handle are Black only available.Also theseSpecial Handle(Black Only)
Shape

Code

Ball

Handles are not available in case of Key Handle Operation.

Because of difference of mounting method,Ball Handlecannot be replaced from other shapes of handle.

Name Plate Stand
Fixing screws are not attached to the Name Plate Stand,need to order Screw Set shown on Page A-107 separately.

Model

Color

Code

Black(Color close to N1.5)

Gray Blue(Color close to 7.5BG4/1.5)

Gray Blue Color is not available in case that Basic Type is JB or YB-Type.

Code
Measurement

Appearance

Name Plate Frame
Name Plate Flame for One-Touch mounting type NP. Only for JB-type and YB-type available.(Black Color only)

Code
Application

JB-Type(NP Thickness:0.5mm)(For Alminius/Stainless NP)

JB-Type(NP Thickness:1.0mm)(For Acrylic NP)

YB Type

Measurement

Appearance

Name Plate
Fixing screws and Indicator are not attached to the Name Plate,need to order Screw Set shown on Page A-107 separately.

Model

Option(Indicator/Key Handle)
Spec
Standard

Code

w/t Indicator Hole

Indicator is not available in case that Basic Typeis AB-Type or YB-Type or Acrylic NP.

For Key Handle(φ15)

Choose Key No. from Page A-69~70.

Nothing Filled

Name Plate Letters
Remarks

Spec
Blank

Code

To inscribe
Customized Letters

Fill your desired Letters in the Order Sheet on Page A-114~117.

Pre-Printed NP

Choose your desired Letter No. from NP List on Pate A-77.

Material
Basic Type

Code Basic TypeB-TypeAB-Type
JB-Type
YB-Type

CodeMaterial

Nothing FilledStandard Alminium NP(Screen+Baking Clear Coating)

Thisckness(mm)Stainless Name Plate(Delustering Plish)
Acrylic Name Plate(Backside's Inscription Letter Color: Black)

Acrylic Name Plate is not available in case that Basic type is YB-Type.

Indicator
Model

Indicator

Indicator can be additionally mounted only when Operation method is
Spring-Return-Type(Operational Angle45°). Indicator cannot be mounted in casethat the basic type is AB-Type and YB-Type, and in case that Acrylic Name Plate is used.
See page A-112 for Assembly Method.

Bush
Plate Spring

Short Bar
Code
Terminal No.

Shape

Code
Usage Example

Terminal No.

Terminal
No.

Shape

Terminal
No.

Screw Set
Set sales only.Not sold separately.
Model
Code

Application
Model

B-TypeAB-Type

JB-Type
YB-Type

Set including

Screw Type

Materials

For Handle

1 pc

Built in Round Head Screw(3P) Copper(Glvanized)

For NP

4 pcs

Round Head Tappng Screw

For NP Stand

4 pcs Countersunk Screw

For Handle

1 pc

For NP

4 pcs

Round Head Tappng Screw

For NP Stand

4 pcs

Countersunk Screw

For Handle

1 pc

Brass(Nickel-Plated)
Copper(Glvanized)

Built in Round Head Screw(3P) Copper(Glvanized)

Brass(Nickel-Plated)
Copper(Glvanized)

Built in Round Head Screw(3P) Copper(Glvanized)

For NPFor NP Stand

2 pcs Built in Round Head Screw(3P) Copper(Glvanized)

Outline Drawing
See A-111 for dimension of respective handle.
Manual Return/Spring Return/HybridType[NP unit Size]

B-TypeAB-Type[Mounting Hole size]
No. of units

No. of units

Spring Return and Hybrid type can be mamufactured up to 12 Units.
Manual Return/Spring Return/HybridType[NP unit Size]

JB-Type

YB-Type[Mounting Hole size]
No. of units

No. of units

Spring Return and Hybrid type can be mamufactured up to 12 Units.

Pull・Push operation(w/o pull・push contact)/Spring Return w/ ClickType[NP unit Size]

B-Type[Mounting Hole size]

AB-TypeNo. of units

No. of units

In case that Rotating operation is Spring Return or Hybrid type can be mamufactured
up to 12 Units.Click Type w/ click can be manufactured up to 3 units.

Pull・Push operation(w/o pull・push contact)/Click type Spring ReturnType[NP unit Size]

JB-Type

YB-Type[Mounting Hole size]

No. of units

No. of units

In case that Rotating operation is Spring Return or Hybrid type can be mamufactured
up to 12 Units.Click Type w/ click can be manufactured up to 3 units.

Type
Pull・Push operation(w/ pull・push contact)[NP unit Size]

B-TypeAB-Type[Mounting Hole size]
No. of units

108 120 132 144 156 168 180 192
No. of units

204 216 228 240 252 264
In case that Rotating operation is Spring Return or Hybrid type can be mamufactured
up to 12 Units.

Type
Pull・Push operation(w/ pull・push contact)[NP unit Size]

JB-Type

YB-Type[Mounting Hole size]
No. of units

108 120 132 144 156 168 180 192
No. of units

204 216 228 240 252 264
In case that Rotating operation is Spring Return or Hybrid type can be mamufactured
up to 12 Units.Click Type w/ click can be manufactured up to 3 units.

Type

Key Handle Type[NP unit Size]

B-TypeAB-Type[Mounting Hole size]
No. of units

No. of units

Spring Return and Hybrid type can be mamufactured up to 12 Units.

Type

Key Handle Type[NP unit Size]

JB-Type[Mounting Hole size]

YB-TypeNo. of units

No. of units

Spring Return and Hybrid type can be mamufactured up to 12 Units.

Handle Dimensions(Mounted Condition)[Remarks]

A:Dimension from the mounting surface of Mechanical unit of
Switch to the End of Handle.
B:Length of Handle Pulled out when Pull Operation.

*Broken Line Drawings are image of Pull/Push Operation.

ShapesCode

Chrysanthemum

Pistol

Oval

Stick

Arrow

Boat

Large Chrysanthemum

Large Pistol

Large Oval

Dimensions

ShapesCodeDimensions

ShapesCodeDimensions

ShapesCodeLarge Stick

Shaft Size（Standard Handle)

Dimensions

ShapesCodeDimensions

BallMounting Hole Processing Dimensions and Assembly Method
B・AB-Type screwing NP

JB・YB-Type One-Touch NP【Mounding Method】【Mounding Method】

Name Plate Stand

Name Plate Stand

Name Plate

Main Body

Name Plate

Main Body

Name Plate
Frame

HandlePanel Thickness

Panel Thickness
HandleCountersunk Screws

Built-in Round Head Screws(3P)

B-TypeRound Head Tapping Screws

AB-TypeRound Head Tapping Screws

Direct the Concaved-End to side.Set the nameplate in the frame.Then,Place the framed nameplate into the stand.

Built-in Round Head Screws(3P)

Built-in Round Head Screws(3P)【MountingHole Shape】【MountingHole Shape】
Two(2) Φ5-holes on adiagonal line can be OK
instead.

JB-Type w/ Indicator

B-Type w/ Indicator【Mounding Method】

Be careful withits direction!

Be careful withits direction!

Name Plate Stand

Name Plate Stand

Indicator

Main Body

Indicator
Name
Plate

Name Plate
Frame

Bush
Panel Thickness
Flat Spring

Main Body

Bush
Panel Thickness
Flat Spring

HandleHandle【Mounding Method】

Countersunk Screws

Built-in Round HeadScrews(3P)

Name Plate
Direct the Concaved-End to side.Set the nameplate in the frame.Then,Place the framed nameplate into the stand.

Round Head Tapping Screws
Built-in Round Head Screws(3P)【MountingHole Shape】【MountingHole Shape】

Standard Torque of Screws of Each Type
Screw TypeNP Mounting
Screw
Handle Fixing Screw

Terminal Screw
NP StandMounting Screw

Screw Size

Built-in Round Head Screws(3P)

Tightening TorqueTechnial Reference
Name of Each Parts and its Materials
Parts Name
HandleMaterials
ABS Resin

Plating / Flame
Resistance

NP StandABS Resin

Name Plate

Alminium

Shaft

Steel/Zinc Die-Cast Galvanized

Mechanical CasePBT Resin

Stopper Plate

ABS ResinContact BasePBT Resin

End PlatePBT Resin

Window

Polyvinyl Chloride Resin

Cam
Movable Contact

Polyacetal Resin

Fixed Contact

Brass
Brass

Contact

Silver/Copper

Contact Spring

Stainless Steel

Terminal Screw

CopperBracketNylon Resin

Notch Lever

Polyacetal Resin

Push Spring

Stainless Steel

Roller

Brass

Notch

Polyacetal Resin

Nickel-Plated

Nickel-Plated

Galvanized

Weight List
The weight listed below stands for roughly calculated weight of 【Main Body of aswitch + NP stand + Name Plate +Handle + A set of screws used】.
The number of the units manufacturable is limited depending on the types.
See page A-100 for the number of the units manufacturable.

（g）Numberof Unit

Rotating
Operation

Pull/Push Operation・
Click-Type