High Current, Plastic Power Supply Connectors
EM Series
Attachable to DIN rail
Back mount type
Front mount type
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Features
1. 4-positions with high current capability
(three-phase power supply and ground)
·Rated current of 50A per contact (50A/3contacts) with
8 AWG or corresponding wire. 70A per contact with 8
AWG wire and ambient temperature 25°C.
·Rated current of 30A per contact (30A×3contacts)
with 10 AWG or corresponding wire.
(Please refer to the charts below concerning the
relation between ambient temperature and working
current value.)
4. Sequenced mating
Ground terminal makes contact first before power
terminals touch.
5. Snap-in lock is easy to operate
Lock operation can be done by simply snapping the
plug to the receptacle.
6. Attachment Styles
•DIN rail attachment type
Snap-on attachment to 35mm width DIN rail.
•Panel attachment type
Both front and back mounting applicable.
2. Easy crimp termination
Crimp termination provides easy and stable
termination process.
3. Standard tooling available
Terminals can be crimped with a standard tool in
accordance with JIS C 9711.
7. Ten keying combinations possible
Guide keys prevent incorrect insertions when multiple
connectors are used together at the same time.
8. Meets approved safety standards
TÜV, UL certified.
Mated dimensions
Derating curve
8 AWG
10 AWG
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
110
1 20
1 30
Note 1 : Derating curve is a curve that is obtained by multiplying the current value of the basic
curve by derating factor of 0.8.
Note 2 : The value of rated current varies with the ambient temperature. It is recommended to
use the product within the derating curve zone.
When using a UL or TÜV approved product, please use the product within the specified
range as well as the derating curve aera.
In cases where the application will demand a high level of reliability, such as automotive,
please contact a company representative for further information.
2017.2
④
1
EM Series●High Current, Plastic Power Supply Connectors
Product Specifications
Rating
Current rating
(Note 2)
Voltage rating
Current rating
(Note 2)
Voltage rating
30A (10 AWG)
70A (8 AWG, Ambient Temperature 25°C)
AC 1000V, DC 1000V
30A (10 AWG)
50A (8 AWG)
AC 500V, DC 500V
Operating temperature range
Storage temperature range
Operating temperature range
Storage temperature range
-40°C to 125°C (Note 1)
-10°C to 60°C
-40°C to 125°C (Note 1)
-10°C to 60°C
UL, TÜV
Note 1 : Including temperature rise due to current carrying.
Note 2 : The value of rated current varies with the ambient temperature. It is recommended to use the product within the derating curve zone.
When using a UL or TÜV approved product, please use the product within the specified range as well as the derating curve aera.
Item
Specification
Condition
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
1. Contact resistance
2. Insulation resistance
3. Withstanding voltage
4. Vibration resistance
5. Shock resistance
6. Durability
7. Temperature cycle
8. Humidity resistance
(Normal condition)
1mø max.
5000Mø min.
No flashover and insulation breakdown
No electrical discontinuity of 10µs or
more
No electrical discontinuity of 10µs or
more
Contact resistance : 1mø max.
Insulation resistance : 5000Mø min.
Insulation resistance :
50Mø min. (at high humidity condition)
500Mø min. (at dry condition)
Measured at DC 1A
Measured at DC 500V
AC 4260V for 1 minute
10/50/10Hz/cycle, single amplitude of 0.75mm,
five minutes/cycle, three directions,
10 cycles for each direction
Acceleration of 490m/s
2
, duration of 11ms,
three directions, three times for each direction
100 cycles
-55ç for 30 minutes/room temperature for
2 to 3 minutes/+125ç for 30 minutes/room
temperature for 2 to 3 minutes, 5 cycles
Exposed for 96 hours at the temperature of 40ç
and the humidity of 90 to 95%
Materials / Finish
Item
Insulation
Contact
Material
PBT resin
Copper alloy
Finish
----
Tin plated (Nickel under plating)
Remarks
UL94V-0
----
Product Number Structure
Refer to the chart below when datermining the product specifications from the product number.
Please select from the product numbers listed in this catalog when placing orders.
Connector
EM 35 M P − 4 S C (
**
)
❶
❷
❸
❹
❺
❻
❼
½
Guide key
EM − GK (
**
)
❶
❹
½
Crimp terminal
EM − S C − 1 4 3 (
**
)
❶
❶
❷
❸
❹
❻
❼
❾
½
❼
Type of termination : C = Crimp
½
This position will be used to indicate changes or
variations to the product. When needed, there will
be a 2 digit number within the parentheses. This
number will correspond to specific changes and/or
variations with the part.
❾
Terminal shape : 1= Loose piece terminal
Shape modification : Design variation in the same
size terminal is indicated with
serial numbers starting from 1.
Plating : 3 = Tin plated
Series name : EM
Shell size : 35
Specialty : M=Mold type(Plastic type)
Connector type : P= Plug
R= Receptacle DIN rail attachment type）
（
RA= Receptacle Panel attachment type）
（
GK= Guide key
❺
Number of contacts : 4
❻
Contact gender : S=Female contact,
P=Male contact
2
EM Series●High Current, Plastic Power Supply Connectors
Plug
Receptacle(DIN rail attachment type)
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Part No.
EM35MP-4SC
EM35MP-4PC
HRS No.
138-0020-9
138-0021-1
Packaging
1
Part No.
EM35MR-4PC
EM35MR-4SC
HRS No.
138-0022-4
138-0023-7
Packaging
1
Receptacle
(Panel attachment type)
Cap
For receptacle
Part No.
EM35MRA-4PC
HRS No.
138-0028-0
Packaging
1
Part No.
EM35MR-C
HRS No.
138-0029-3
Applicable connector Packaging
EM35MR-4PC
EM35MR-4SC
EM35MRA-4PC
1
3
EM Series●High Current, Plastic Power Supply Connectors
Crimp terminals
◆Male
terminals
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Type
Part No.
HRS No.
Applicable wire
(1) Cross sectional area of conductor : 5.26 to 5.57mm
2
(corresponding to 10 AWG)
(2) Outside diameter of conductor : Ø3.1 max.
(3) Outside diameter of jacket : Ø8.7 max.
(Wire needs to meet all the specifications listed in 1, 2 and 3.)
(1) Cross sectional area of conductor : 8mm
2
(2) Outside diameter of conductor : Ø3.7 max.
(3) Outside diameter of jacket : Ø8.7 max.
(Wire needs to meet all the specifications listed in 1, 2 and 3.)
(1) Cross sectional area of conductor : 8.44 to 8.92mm
2
(corresponding to 8 AWG)
(2) Outside diameter of conductor : Ø4.4 max.
(3) Outside diameter of jacket : Ø11.5 max.
(Wire needs to meet all the specifications listed in 1, 2 and 3.)
Remarks
Retainer :
black
EM-PC-113(01) 138-0011-8 01
Loose
piece
EM-PC-133
terminals
138-0019-0
Retainer :
white
EM-PC-143(01) 138-0025-2 01
Retainer :
purple
Note : 4 pcs/pack
◆Female
terminals
Type
Part No.
HRS No.
Applicable wire
(1) Cross sectional area of conductor : 5.26 to 5.57mm
2
(corresponding to 10 AWG)
(2) Outside diameter of conductor : Ø3.1 max.
(3) Outside diameter of jacket : Ø8.7 max.
(Wire needs to meet all the specifications listed in 1, 2 and 3.)
(1) Cross sectional area of conductor : 8mm
2
(2) Outside diameter of conductor : Ø3.7 max.
(3) Outside diameter of jacket : Ø8.7 max.
(Wire needs to meet all the specifications listed in 1, 2 and 3.)
(1) Cross sectional area of conductor : 8.44 to 8.92mm
2
(corresponding to 8 AWG)
(2) Outside diameter of conductor : Ø4.4 max.
(3) Outside diameter of jacket : Ø11.5 max.
(Wire needs to meet all the specifications listed in 1, 2 and 3.)
Remarks
Retainer :
black
EM-SC-113(01) 138-0010-5 01
Loose
EM-SC-133
piece
terminals
138-0018-7
Retainer :
white
EM-SC-143(01) 138-0024-0 01
Retainer :
purple
Note : 4 pcs/pack
4
EM Series●High Current, Plastic Power Supply Connectors
Coding key
Part No.
EM-GK
HRS No.
138-0026-5
Note : 25 pcs/pack
Each sprue holds 4 coding keys and yields a total of 100 coding keys.
Coding keys are used to create keying combinations to prevent
incorrect insertion. This is especially useful when multiple parts are
being used together. Coding keys need to be installed on both the
plug and receptacle when creating specific combinations.
Please contact a Hirose representative for details and proper use of
coding keys.
Oct.1.2018 Copyright 2018 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
Coding key combination table
(Using two coding keys on the plug and three on the receptacle can make up to ten different combinations.)
Positioning of coding keys on the plug
Positioning of coding keys on the receptacle
Coding key
Coding key
Dovetail
groove
Dovetail
groove
5
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