EM52M/40M/30M Series

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Plastic Connectors for High Current Applications

Product Page
https://www.hirose.com/ja/product/series/?name=EM52M

Apr. 2023

EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Features
1. High Quality Plastic Enables
a Robust and Lightweight
High quality plastic enables a lightweight for highcurrent connectors. Robust design resistant torough handling.

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

2. Quick and Secure Push- onBayonet Lock
The push- on bayonet locking mechanism enables
complete locking in one quick mating action.

3. Multi- surface Contact Spring
DesignHigh current is achieved by using the multisurface contact spring design.

4. Standard Crimp Tool for Easy
Crimp Connection
Contacts can be crimped by using a JIS standard
crimp tool ( JIS C 9711) .

5. Available in a Waterproof
VersionWaterproof when using a cable gland ( Note) .
Note : KEIGLAND,
manufactured by SANKEI MANUFACTURING Co. , Ltd.

6. Finger Protection Design
Complies with the electric shock proof
specification ( IP2X) .
Note : Applies only to plug side in the case of EM40M and EM30M.

7. TÜ V, UL
EM40M, EM30M : UL registered.
EM52M: TÜ V registered,UL application pending
Note : Please confirm specifications at time of delivery.

8. RoHS Compliant2

EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Product Specifications
Product

EM52M

EM40M

EM30M

No of Pos.

4pos.

1pos.

1pos.

TÜVWaterproof
Rated Current
Non-Waterproof

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Rated Voltage:100A (38SQ)
80A (22SQ)
General : 130A (38SQ)(Ambient temperature 25℃ )ULGeneral : 410A
(Ambient temperature 25℃ )General : 175A
(Ambient temperature 25℃ )TÜV:100A (38SQ)
80A (22SQ)
General : 140A (38SQ)(Ambient temperature 25℃ )ULUL

1000V AC/DC
600V AC , 750V DC (TÜV)

1000V AC/DC
600V AC/DC (UL)UL

: 300A

General : 450A
(Ambient temperature 25℃ ): 150A: 150A

General : 200A
(Ambient temperature 25℃ )-25 to +105℃ (Non-Waterproof specification)-20 to +90℃ (Waterproof specification)(Includes temperature rise due to current flow.)

Operating Temperature
Storage Temperature-10 to +60℃
22SQ: 16.78 to 26.66mm
38SQ: 26.66 to 42.42mm2
2Conductor Area

Item

: 300A

117.2 to 152.05mm2Specifications

42.42 to 60.57mm2Conditions

Contact Resistance

0.5m Ω Max. (EM52M)
0.3m Ω Max. (EM40M)
0.6m Ω Max. (EM30M)

Measured at 1A DC

Insulation Resistance

1000M Ω Min.

Measured at 500V DC

Withstanding Voltage

No flashover or dielectric breakdown

2200V AC for 1 min.

Mating Durability

Contact resistance
1.0m Ω Max. (EM52M)
0.8m Ω Max. (EM40M)
0.8m Ω Max. (EM30M)

50 cyclesFrequency : 10 to 55 to 10Hz/cycle, single amplitude of 0.75mm
5 minutes/cycle, 10 cycles in each of the 3 axis
(EM52M Non-water-proof specification)

Vibration ResistanceNo electrical discontinuity of
10μ s or more

Shock ResistanceNo electrical discontinuity of
10μ s or more

Acceleration : 490m/s2, duration : 11ms,
6 directions, 3 cycles for eachTemperature Cycles

Insulation resistance : 1000M Ω Min.

-40℃ : 30 minutes → Room temperature : 2 to 3 minutes→ +105℃ : 30 minutes → Room temperature : 2 to 3 minutes, 5cyclesHumidity Resistance

Insulation resistance :10M Ω Min. (at high humidity)
100M Ω Min. (dry environment)

Left for 96 hours at 40℃ and humidity of 90 to 95%

Waterproof

No water intrusion inside connector

Submerged in 1m water depth for 30 minutes in mated condition.

Frequency : 10 to 500Hz/cycle, single amplitude of 0.75mm
3 hours in 3 axial directions (MIL-STD-1344 Method 2005 Condition Ⅱ )(EM52M Water-proof specification, EM40M, EM30M)

3EM52M/40M/30M Series/Plastic Connectors for High Current Applications[Reference] Derating Curve
Operation below the derating curve ( dotted line) is recommended.
EM52M connector 22sq cable
Derating Curve

Basic Curve
Derating Curve

Ambient Temperature [℃]

Ambient Temperature [℃]

Basic Curve
Derating Curve

EM30M connector
Derating Curve

Current [A]

EM40M connector
Derating Curve

Current [A]

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Basic Curve
Derating Curve

Current [A]Current [A]EM52M connector 38sq cable
Derating Curve

Ambient Temperature [℃]

Ambient Temperature [℃]Note : Derating curve could vary depending on cable type and measurement even under the same conditions.
Therefore, the data noted above are reference values, not connector specifications.

4Basic Curve
Derating CurveEM52M/40M/30M Series/Plastic Connectors for High Current Applications[Reference] Continuous Energizing Current Graph (Current-Time Graph)[ Temperature rise value 45℃] Energizing time ( average value of all samples)

EM52M 38SQ Electric Wire

Energizing Time

Energizing Time (second)

Energizing Tme (second)

Energizing Time

Test Current (A)

EM40M

EM30M

Energizing Time (second)

Test Current (A)Energizing Time (second)

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

EM52M 22SQ Electric Wire

Energizing Tme

Test Current (A)Energizing Time

Test Current (A)Note : The continuous energizing current graph is reference data used for current values exceeding the rated values for a short time.

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EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Materials / Finish
Component

Materials

Color/Finish

Remarks

Insulator

PBT, PBT Alloy ResinBlack

UL94V-0

Contact

CopperSilver Plated-Contact Spring

Copper Alloy

Silver Plated-Packing

Fluorosilicone RubberBlack-O-Ring

Nitrile RubberBlack-Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Product Number Structure
Please utilize the below part number chart when selecting.

■ PlugEM ## M - # B P - # P C A - # (##)❶❷❸❹ ❺ ❻❼ ❽ ❾ 

■ Receptacle

EM ## M - # B R - # S C A - # (##)
❶❷

❸

❹ ❺ ❻

❼ ❽ ❾ 

■ Crimp Contact (Male)EM 52 M - P C # - 1 # 2 (##)❶❷❸❽ ❾   

■ Crimp Contact (Female)EV1 - S C # - 1 # 2 (##)❶❽ ❾   Contact❶ Series NameEM, EV❾ Connection❷ Shell Size

52, 40, 30

 Indication❸ Style [1]M : Mold type

 Package❹ Style [2]W : Waterproof type
Unmarked : Non-waterproof type

 Specification

Alternate options❺ Lock TypeB : Bayonet lock

 Contact Shape

Unmarked : Standard (with connection holes)
2 : Without connection holes❻ Connector TypeP : Plug
R : Receptacle

 Contact Form

1 : Loose piece contact

C : Crimp connection

MethodJ : JackMating GuideSpecialConnection❼ No. of Pos.
P : Male contact❽ Connector Gender S : Female contact

A, B, C, D
Unmarked : Standard
K : Contact, retainer or sleeve shipped in asingle package

 Section

1 : 22SQ-compliant
3 : 38SQ-compliant

 Plating Class

2 : Silver plating

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EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Plug

412

A
3Unit : mm

Part No.

HRS No.

EM52M-BP-4PCA

CL0138-0046-2-00

EM52M-WBP-4PCA

CL0138-0035-6-00

EM40M-WBP-1PCA-K(81)CL0138-0070-0-81

AB

71

51.6

53.2

Remarks

Purchase Unit

For non-waterproof type6pcs per box

For waterproof type
For waterproof type,Contact and sleeve shipped in a single package

39.5

EM40M-BP-1PCA-K(81)CL0138-0072-0-81

For non-waterproof type,Contact and retainer shipped in a single package

EM30M-WBP-1PCA-K(81)CL0138-0074-0-81

For waterproof type,Contact and sleeve shipped in a single package

40.6
EM30M-BP-1PCA-K(81)26.7

12pcs per box

20pcs per box

For non-waterproof type,Contact and retainer shipped in a single package

CL0138-0076-0-81

Receptacle
B(F)

ADEB
A(φC)

41A
32Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

(φA)

(B)

Unit : mm

Part No.

HRS No.

EM52M-BR-4SCA

CL0138-0050-0-00

EM52M-WBR-4SCA

CL0138-0036-9-00

EM40M-WBR-1SCA-K(81)CL0138-0071-0-81

A

B

C

DE

F

5872.4

62

36

7

78.5

45.96

56

46.5

27675.7

Remarks
For non-waterproof type
For waterproof typeCL0138-0073-0-81

For non-waterproof type,Contact and retainer shipped in a single package

EM30M-WBR-1SCA-K(81)CL0138-0075-0-81

For waterproof type,Contact and sleeve shipped in a single package

EM30M-BJ-1SCA-K(81)CL0138-0077-0-814635.221.67557.8

6pcs per box

For waterproof type,Contact and sleeve shipped in a single package

EM40M-BJ-1SCA-K(81)

36.77

Purchase Unit

For non-waterproof type,Contact and retainer shipped in a single package

20pcs per box

EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Male Contact

φ8Unit : mm

Part No.

HRS No.

Conductor Area

AB

EM52M-PC2-132

CL0138-0006-0-00

26.66 to 42.42mm2

13.3

57.8

GrayEM52M-PC-112

CL0138-0012-0-00

16.78 to 26.66mm2

11.550.8

Black

Cap Color Purchase Unit
4pcs per bag

Female ContactB

φA

φ13.7

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

φAB

Unit : mm

Part No.

HRS No.

Conductor AreaAB

26.66 to 42.42mm

2EV1-SC2-132(03)CL0139-0012-7-03

EV1-SC2-112(03)CL0139-0013-0-03

13.3

53.5

Gray

16.78 to 26.66mm

211.550.5

Black8Cap Color Purchase Unit
4pcs per bag

EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Cable GlandPart No.

HRS No.

Applicable Connector

Remarks

E2KD3636－

EM52M

When using a 38mm2 wire

E2KD3236－

EM52M

When using a 22mm2 wire

E2KD2428

－

EM40M

－

E2KD1620

－

EM30M

－

Note : This product is manufactured by SANKEI MANUFACTURING Co., Ltd.

Multiple Packing

Part No.

HRS No.

Applicable Connector

Outer Diameter of Applicable Wire

EMGP36-11 × 4P－

φ 10 to 11mm

EMGP36-12 × 4P－

φ 11 to 12mm

EMGP36-13 × 4P－

EMGP32-9 × 4P－

EMGP32-10 × 4P－

φ 9 to 10mm

EMGP32-11 × 4P

－φ 10 to 11mm

Applicable Cable GlandE2KD3636

φ 12 to 13mm

EM52M

φ 8 to 9mm

Note : This product is manufactured by SANKEI MANUFACTURING Co., Ltd.

9E2KD3236

EM52M/40M/30M Series/Plastic Connectors for High Current Applications

Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

Applicable Tools● Contact Extraction Tool

● Contact Extraction Tool

EM52M-PC-TP

EM52M-SC-TP● Manual Hydraulic Type● Electric Hydraulic Type

Crimp Tool

Crimp Tool

9H-60

REC-Li150Items

Part No.

HRS No.

Remarks

EM52M-PC-TPCL0150-0261-9-00

Male contact extraction tool

EM52M-SC-TP

CL0150-0262-1-00

Female contact extraction tool

Manual Hydraulic Type
Crimp Tool

HT111/9H-60

CL0902-1515-2-00

Equivalent product :9H-60 made by Maxell Izumi Co., Ltd.

Electric Hydraulic Type
Crimp Tool－－Contact Extraction Tool

Recommendation :REC-Li150 made by Maxell Izumi Co., Ltd.

Safety Precautions
Warning● Do not touch the exposed conductor while it is energized. Failing to follow this warning may cause an electric shockand injury.
● The power should be in the OFF position when inserting or extracting this connector.
● After mating this connector, perform a light pull on the cable to ensure that it has been correctly mated and is locked
securely. Incomplete mating may result in disconnection or contact failure and is extremely dangerous.

Caution● This connector was designed to be used in a stable and stationary environment, do not try to operate this connector
where vibration occurs.
● Please only use Hirose approved contacts. Using unapproved contacts can result in a lowering of the product’s
performance and cause a serious accident. Please contact your local Hirose representative for additional information.

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Sep.1.2024 Copyright 2024 HIROSE ELECTRIC CO., LTD. All Rights Reserved.

EM52M/40M/30M Series/Plastic Connectors for High Current Applications

While Taking into Consideration
Specifications mentioned in this catalog are reference values.
When considering to order or use this product, please review the Drawing and Product Specifications sheets.
Use an appropriate cable when using the connector in combination with cables.
If considering usage of a non- specified cable, please contact your sales representative.
If assembly process is done by jigs & tools which are not identified by Hirose, the warranty of the product may beaffected.
If considering usage for below mentioned applications, please contact your sales representative.
In cases where the application will demand a high level of reliability, such as automotive, medical instruments, publicinfrastructure, aerospace/ defense etc. Hirose must review before assurance of reliability can be given.

HIROSE
2-6-3,Nakagawa Chuoh,Tsuzuki-Ku,Yokohama-Shi 224-8540,JAPANhttps://www.hirose.com※ The contents of this catalog are current as of date of 4/ 2023. Contents are subject to change without notice for the purpose of improvements.
※ The HRS logo and "HIROSE" are trademarks of HIROSE ELECTRIC CO., LTD.

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