EA180-302/402 Series

Inside Containment Areas
TMNuclear Qualified Products

Limit Switches/Receptacle
Assembly...
For Nuclear
Environments

Features:

Technical Data:• Qualified to IEEE Standards 344-1975, 323-1974, and382-1972.
• Manufactured to a quality assurance program designed
to meet the requirements of 10CFR50, Appendix B, andANSI N45.2, as applicable.
• Die-cast bronze housing.
• Stainless steel top cover and fasteners.
• Gold-plated contacts.
• High temperature components throughout.
• High temperature lubricants.
• Seismic and vibration resistant.
• Resists chemical spray.
• Three mounting styles.
• EA 180 has a positive lever latching mechanism.

• Two normally open and two normally closed, NEMAform Z contact arrangement.
• Enclosure meets NEMA 1, 4 and 13 requirements fordust-tight, water-tight and oil-tight applications.
• Operating lever is adjustable in 7°30' increments
through 173°.
• Adequate wiring space for nine conductors.
• Operating temperature 0° to 90°C.
• Short term exposure to 175°C.
• EA 180-302/402 has 10° or 6½ ° pre-travel, maximum
travel 37°.
• Weight EA 180-302: 4.5 lbs.; EA 180-402: 5.5 lbs.
• DBE maximum test parameters — temperature 340°F,
pressure 70 PSIG, radiation 204 megarads gamma.

Receptacle Data

Continuous Current Rating
75-100% Power Factor*
125 VAC
250 VAC480 VAC
600 VAC
125 VDC
250 VDC

20 AMPS*
15 AMPS*
10 AMPS*
5 AMPS*
5 AMPS
1.5 AMPS• Qualified receptacle sealed in place.
• Qualified ring tongue terminal applied to leads.
• Every assembly tested before shipment.
• Qualified lead wires.
• Receptacle keyed for proper alignment of connector.
• All circuits wired.
• Circuits of receptacle identified the same as limit switch
A, B, C, D, etc.

EA180-302/402 Series

Nuclear Qualified Products

FOR INSIDE CONTAINMENT AREAS SWITCHES SHOULD BE SPECIFIED AS FOLLOWS:
EA180 Series*Series

EA180 Series with Receptacle**Operation
CW

EA180
Standard
EA180
Short
TravelStandard

WideLong

Series

EA18011302

21302

31302

CCW

12302

22302

32302

Maint.

13302

23302

33302

CW

14302

24302

34302

CCW

15302

25302

35302

Maint.

16302

26302

36302

* For inside containment — see catalog EA170-XX302.

EA180
Standard
EA180
Short
TravelOperation

CDCA
B

RETURN SPRINGMOUNTED ON
THIS SIDE OF
SWITCH FOR"CCW"OPERATION.

D

RETURN SPRINGMOUNTED ON
THIS SIDE OF
SWITCH FOR"CW"OPERATION.

WideLong

EA180-CW

11402

21402

31402

CCW

12402

22402

32402

Maint.

13402

23402

33402

CW

14402

24402

34402

CCW

15402

25402

35402

Maint.

16402

26402

36402

** For outside containment — see catalog EA170-XX402.
Male Receptacle Assemblies may be ordered separately.
Please order part number EC290-19001.

Operational DataA
B

Standard

Dimensions

Series EA180 - Standard
Direction of Rotation
A. Trip Travel ................................................... 10°
B. Reset Travel ............................................... 8°
C. Recommended Travel ................................ 13°
D. Total Travel ................................................. 37°
E. Torque to Trip (inch Lbs.) ........................... 21

EachSeries EA180 - Short Travel
A. Trip Travel ............................................6°30'
B. Reset Travel . ............................................. 4°
C. Recommended Travel ................................ 7°
D. TotaITravel .................................................. 36°
E. Torque to Trip (Inch Lbs.) .......................... 32

Long Mtg.

WideMountingContact
Configuration:

4.57"
Ref.

For CW Switch
InitialCW
HGFEDCBA

InitialCCWHGFEDCBA

2.56"(65.0)PLUG-IN CABLES: Cable lengths for the above
Switch/ Receptacle Assemblies should be orderedwith specific cable lengths as follows . . .

For CCW Switch
CW

1.55"
(39.4)

CCW

Plug-In Cables
LengthEC29020 Ft.
29020
25 Ft.
29025
30 Ft.
29030
35 Ft.
29035
50 Ft.
29050
100 Ft.
29100

LEVERS: For use inside containment area, levers
with bronze arms and beryllium copper rollers arerecommended.
Note: Levers must be ordered as separate item. For
information request Lever Bulletin EL.
ADAPTORS: Straight and elbow adapters areavailable for direct mounting into limit switches. See
CD/EH700 Series Bulletin.

2013 West Meeting Street • Lancaster, SC 29720 • Technical Assistance: 1-800-NAMTECH© 2002 Namco Controls • www.namcocontrols.com • EADS02-E | 12/2002