To customers and whom it may concern,

April 3, 2023

Sumitomo Heavy Industries, Ltd.

PTC Division
Incorrect description of the protection method class for motor frame sizes F50/56 bySumitomo Heavy Industries, Ltd.
Thank you for your continuous patronage.
It has come to light that there was an error in the description of the protection method class in the catalog,
nameplate, and test report for our motor frame sizes F50/56.
We would like to express our sincerest apologies for the inconvenience this has caused for our customers andrelevant parties.

1.

Incorrect descriptionFor the catalog, nameplate, and test report for the subject products mentioned in Section 2 below, theprotection method class was listed as IP44, whereas the protection method class for the actual products isIP20.
Table 1. Incorrect description of the protection method class
Description in theProtection method ofcatalog, nameplate, andthe actual producttest report
Protection
IP44
IP20
method class
Table 2. Catalog description example
TypeItemFigure 1. Nameplate description example

Standard specifications

Three phase motor

Capacity range 15W to 0.55kW 4PNote 1)
Indoor type (IP44 Totally enclosed splash-proof type/indoors) orProtection
Outdoor type (0.1 to 0.55Kw only. IP44 Totally enclosed splash-proofmethodtype/outdoors)2.

Enclosure

Totally enclosed fan cooled type
(15W to 0.1kW is a totally enclosed naturally air-cooling type)

Power source

Power sources of 3 ratings
200V50/60Hz, 220V60Hz or 400V 50/60Hz, 440V 60Hz
(15W, 25W, 40W, 60W, 90W are 200V 50/60Hz, 220V 60Hz)

Thermal class

15W to 0.4kW 120 (E)0.55kW 130(B)Time rating

S1 (continuous rating)Start method

Direct input

Lead wire

3 (lug type)

Standard

JIS C 4034-1

Subject product

IP44

Table 3. Subject products

Gear reducer
frame size

Motor capacity
range

Motor frame size

HYPONIC-15 to 90W

F50/56

PREST NEO1160#

40 to 90W

F56

ALTAX NEO

5067#

40 to 100W

F56

Model

Terminal box

Indoor noterminal box

There is a gap between the lead wire and rubber bushing at the lead wire cable port, so the protection method class is IP20.
Lead wire cable port
リード線引出口

Leadwire cable port
リード線引出口

Photo: HYPONIC
写真：ハイポニック

Figure 2. Lead wire cable port for HYPONIC/PREST NEO3.

Figure 3. Lead wire cable port for ALTAX NEO

Protection method class IP20
In the “surrounding conditions” in the catalog, the “Installation Location” is to be “Indoors (area withminimal dust, no contact with water).” Due to this, if you are using the product under such conditions, theuse of the current protection method class IP20 poses no issue.
Table 4. Surrounding conditions in the catalog

Surrounding
conditions

Item

Standard specifications

Installation
location

Indoor type: Indoors (area with minimal dust, no contact with water)
Outdoor type: Indoors or outdoors (area with little contact with rain water)
Vibration: Maximum 1G

Ambient-10 to +40˚C (There shall be no freezing)
temperature
Ambient
Maximum 85%. However, there shall be no condensation.
humidity
Altitude

Maximum 1,000 m

Atmosphere No corrosive or volatile gases, no steam. Dust-free, well-ventilated area.

*Please see the supplement 1 for protection method classes.

4.

Accommodation for products that have been ordered/have not been shipped and future orders
Please check if it is possible for the product to be used as motor protection method class IP20.
1) If it can be used as motor protection method class IP20
The conventional type, in which the motor lead wire directly comes out of the frame (no terminal box),
shall be shipped and delivered as “protection method class IP20” on the nameplate. (Standardspecifications)2)If you wish to specify motor protection method class IP44
A resin terminal box shall be assembled for products that have been ordered/have not been shipped as“protection method class IP44” on the nameplate free of charge.
This accommodation shall be optional for future orders.
Table 5. Product specifications of motor frame sizes F50/56Indoorsspecifications

Product specifications
Terminal box
Protection method classStandard

No terminal box

IP20

Optional

Resin terminal box

IP44*Please see the supplement 2 for the external view, terminal box location, and leading wire direction.
We shall also proceed with replacing/revising the descriptions in the catalog.
5.

Accommodation for already shipped products
If the said product is installed on your site “Indoors (area with minimal dust, no contact with water)” as
described in the catalog and if there is no problem with the use, please continue using the product as is.
For the customers in Japan, if you wish for the nameplate to be reissued on an already shipped product,
please contact the closest sales office of Sumitomo Heavy Industries Power Transmission Controls SalesCo., Ltd. and inform us of the serial number indicated in the “SERIAL No.” column of the productnameplate. We will reissue the product nameplate.

For the customers in overseas, please access to the inquiry form and send us the information.
*For the customers in Japan
Please visit below website to find the closest sales offices of Sumitomo Heavy Industries PowerTransmission Controls Sales Co., Ltd.
https://cyclo.shi.co.jp/operation/oper010.html*For the customers in overseas
Please fill in the form and send us the information.
https://japan.sumitomodrive.com/en-jp/contact-us
Please contact the sales office mentioned above or send us the information via inquiry form if you
additionally require the motor protection method class IP44 so that we can discuss the accommodation.
We apologize in advance for any inconvenience, but please note that the applicable subject products above
shall be limited to those which have been shipped by Sumitomo Heavy Industries Sumitomo HeavyIndustries Power Transmission Controls Sales Co., Ltd. less than 15 years ago (shipped in January of 2008or later).
(Specified based on the recommended update timing for induction electric motors according to the Japan
Electrical Manufacturers' Association (JEMA).)
Again, we would like to express our sincerest apologies for the inconvenience this has caused for ourcustomers and relevant parties.
We shall not only strive to take thorough preventive measures to avoid similar issues in the future but also
promote efforts to improve the quality of our products.
End of document

Supplement 1: Protection method classes
First symbol - Protection type for human body and solid foreign materials
classified according to combination (JIS C 4034)

Second symbol - Protection type for water ingress.

Protection type of the electric machine and our support
0Second symbol
Second type Non-protected
name
type

First symbolFirst type name2
Drip proof
type

3
Spray-proof
type

4
Splash proof
type

5
Water-jetproof type6
Sea-waveproof type7
Immersionproof typex

xxxx

x

x

IP24

xx

x

0 (Non-protected type)

IP00

1 (Semi-protected type)

IP10

IP12S

2 (Protected type)

IP20IP22S4 (Totally enclosed)

xIP44

IP45

5 (Dust-proof type)

x

IP54

IP55

6 (Complete dust-proof type)xIP23S

8Submersible
type

IP56

IP65IP67Note) 1. × indicates what is difficult to combine.
2.
indicates the standard manufacturing range of Sumitomo.
3. In the case of direct exposure to strong wind and rain and frequent exposure to water, it may be necessary to consider the protection method, so please consult us.
4. The protection type of the standard motor is IP44 for both indoor and outdoor, but the structures of the indoor and outdoor types are different, so specify the outdoor
type in the case of outdoor installation.

Grade of the first symbol
Nomenclature

SymbolDescription

Non-protected type0

Structure without special protection against contact with human body and intrusion of solid foreign materials.

Semi-protected type1

Structure to prevent large parts of human body such as hand from touching the rotation part or conductive part of the machine by mistake.
Structure to prevent intrusion of solid foreign materials whose diameters exceeds 50mm.

Protected type2

Structure to prevent fingers, etc. from touching the rotation part or conductive part of the machine.
Structure to prevent intrusion of solid foreign materials over 12mm.

Totally enclosed

4Structure to prevent objects whose minimum width or minimum depth is larger than 1mm such as tools and electric cables from touching therotation part or conductive part of the machine.
Structure to prevent intrusion of solid foreign materials over 1mm. However, the structures of drainage wells and inlets and outlets of theexternal fan can be that of symbol 2.

Dust-proof type5

Structure to prevent any objects from touching the rotation part or conductive part of the machine.
Structure to prevent intrusion of dust as mush as possible and prevent it from hindering the normal operation even in the event of intrusion.

Complete dust-proof
type

6

Structure to prevent dust from intruding inside.

Grade of the second symbol
Nomenclature

SymbolNon-protected type0

Structure without special protection against water ingress.

Drip-proof type2

Structure to prevent harmful effect of water droplets dropping at an angle from vertical to 15°.

Spray-proof type3

Structure to prevent harmful effect of water droplets dropping at an angle from vertical to 60°.

Splash proof type4

Structure to prevent harmful influence of water droplets in any directions.

Water-jet-proof type5

Structure to prevent harmful influence of jet in any directions.

Sea-wave-proof type6

Structure to prevent harmful influence of strong jet in any directions.

Immersion-proof type7

Structure to prevent harmful effect even in the event of submersion in water at the specified water depth for the specified time and water ingress.

Submersible type8

Structure to enable normal operation in water.

e.g. I P

Description− 54 □S - Case that the protection type for water ingress is tested while the motor is stopped.
M - Case that the protection type for water ingress is tested while the motor is in operation.

SM
Protection type for water ingress: Splash proof typeProtection type for human body and solid foreignmaterials: Dust-proof
IEC - Abbreviation of the standard

Without S or M indication - Conduct the test while the motor is stopped and in operation.

Supplement 2: External view, Terminal box location, Leading wire direction
If you need an outline drawing of models, please contact the the closest sales offices of Sumitomo Heavy
Industries Power Transmission Controls Sales Co., Ltd. or send us the information via inquiry form mentioned inabove Section 5.
ModelGear Motor

Type ofProtection

Frame Sizeterminal box

class I

15L/R
1717L/R

Without

1240

terminal box

Terminal box

wire

positionn

direction

1160

HYPONIC

Left(N33)-〇

Right(N34)-〇

Top(N35)-◎(Standard)

Bottom(N36)-〇40～90W
Left(N33)

PREST
NEO
40～90W
15L/R
17L/R
1240
1240L/R

Right(N34)
Resin Terminal
Box CoverIP44(N2R)
Top(N35)

1160

Bottom(N36)

01L/R
03
03L/RWithout

05L/R

terminal box

07

HYPONIC

01L/R

05L/R
07
07L/R

C(N3C)N/A

D(N3D)〇

A(N3A)〇

B(N3B)N/A

C(N3C)N/A

D(N3D)〇

A(N3A)◎(Standard)

B(N3B)N/A

C(N3C)N/A

D(N3D)〇

A(N3A)〇

B(N3B)N/A

C(N3C)N/A〇

Left(N33)-〇

Right(N34)-〇

Top(N35)-◎(Standard)

Bottom(N36)-〇

Right(N34)
Resin Terminal
Box Cover〇
N/A

D(N3D)

Left(N33)

15～60W

03L/R

A(N3A)
B(N3B)

IP20

07L/R

03

Availability

IP20

1240L/R

17

Leadingmounting

IP44

(N2R)
Top(N35)

Bottom(N36)

A(N3A)〇

B(N3B)N/A

C(N3C)N/A

D(N3D)〇

A(N3A)〇

B(N3B)N/A

C(N3C)N/A

D(N3D)〇

A(N3A)◎(Standard)

B(N3B)N/A

C(N3C)N/A

D(N3D)〇

A(N3A)〇

B(N3B)N/A

C(N3C)N/A

D(N3D)〇

External view

ModelGear Motor

Type ofProtection

Frame Sizeterminal box

class I

5067

Without
terminal box

Terminal box

wire

positionn

direction

Left(N33)-〇

Right(N34)

-〇

NEO

Top(N35)-◎(Standard)

Bottom(N36)-〇

Left(N33)

40～100W

Right(N34)
Resin Terminal
Box CoverAvailability

IP20

ALTAX

5067

Leading

mounting

IP44

(N2R)
Top(N35)

Bottom(N36)

A(N3A)〇

B(N3B)〇C(N3C)〇

D(N3D)〇

A(N3A)〇

B(N3B)〇C(N3C)〇

D(N3D)〇

A(N3A)◎(Standard)

B(N3B)〇C(N3C)〇

D(N3D)〇

A(N3A)〇

B(N3B)〇C(N3C)〇

D(N3D)〇

External view