Zhejiang Yonggui Electric Equipment Co., Ltd.

ESC-HPB300 Connector

Application:Apply for power transmission of energy storage system (battery pack).


Description:

  • Touch-proof

  • Poka-yoke:

    Orange for positive、Black for negative

  • 360° rotation after insertion

  • Lock mode:Lock buckle+secondary lock

  • Termination Methods:

    Crimp termination、Screw termination


The Details of ESC-HPB300 Connector

The Details of ESC-HPB300 Connector

ESC-HPB300 Plug

The Details of ESC-HPB300 Connector

ESC-HPB300 Socket

The Details of ESC-HPB300 Connector

ESC-HPB300 Mounting Hole Dimensions

Specifications of ESC-HPB300 Connector


Basic in formation

Numbers of pins

1

Terminal specifications

φ10.5mm

Electrical specification

Rated voltage

1500V DC

Rated current

200A(50mm²)/ 250A(70mm²)/ 300A(95mm²)

Insulation resistance

≥ 100MΩ

Withstand voltage

6800V AC 50Hz

Contact resistance

≤0.25mΩ

Temperature rise

≤45K

Termination method


Termination method

Plug: Double B-type crimp or hexagonal crimp

Receptacle:  Threaded locking M8   Torque 10N•m-12N•m;

Cable specifications

50mm²、1/0AWG;/70mm2、2/0AWG;/95mm²、3/0AWG

Cable outer diameter

13.5 ±0.3mm/ 15.5 ±0.3mm/ 18.7 ±0.5mm

Mechanical specification

Life cycle

≥ 100 cycles

Vibration and shock

QC/T 1067.1-2017 Vibration level V1

Environmental resistance specification

Ambient temperature

-40℃ ~ +125℃

Humidity range

5%~95%

Salt spray

96H (5% NaCl solution, after mating and installation)

IP rating

IP67(after mating)

Materials/Finish/Outline


Insulator

Engineering plastic

Rubber part

Silicone rubber

Contacts

Copper alloy     Silver-plated/Tin-plated

Standards and certifications


Flame retardant rating

UL94 V0 (main material)

Environment requirements

RoHS 2.0

certification

CE、UL4128、TUV

Reference standard

UL4128、QC/T 1067.1-2017




ESC-HPB300 Connector Storage Condition

  • The connector should be used within the provided technical parameters, and the product should be installed, used and maintained in strict accordance with the product instruction manual.

  • Connecters should be used within the specification that provided, Install, use and maintain the products according to the documents.

  • Package: Carton packing, moisture-proof treatment.

  • Storage Spec:

    Products packaged in boxes should be stored in a warehouse with an ambient temperature of -10℃~+40℃, relative humidity below 80%, and no acidic, alkaline or other corrosive gases in the surrounding air. The storage period shall not exceed two years from the date of production.

    The packaged products shall be stored in the warehouse within the temperature of -10 ℃~+ 40 ℃, relative humidity less than 80%, and no acid, alkaline or other corrosive gases in the surrounding air. The storage period shall not exceed two years from the production date.

Contact Yonggui Electric for Connectors
Contact Yonggui Electric for Connectors
We Can Provide
  • Customized Solutions

    Tailoring connectors to your unique needs.

  • Expert Technical Support

    Provide systemic solutions

  • Quick Response

    Respond to needs within 12 hours

Blog & News
Official Notice on Yonggui Electric Business Communication Channels
To protect our customers, distributors, suppliers and business partners, Yonggui Electric would like to remind all parties to verify official business communication channels carefully. Official busine...
Read More
Yonggui Electric Signs Digital Transformation Project Agreement with xFusion
Zhengzhou, China, May 18, 2026Zhejiang Yonggui Electric Co., Ltd. signed a project agreement with XFUSION INTERNATIONAL PTE. LTD. for management transformation and business digitalization in Zhengzhou...
Read More
The Ultimate Guide to Explosion-Proof Connectors: Securing Operations in Hazardous Environments
In heavy industries such as oil and gas, mining, and chemical processing, operational safety is not just a regulatory requirement—it is the foundation of sustainable profitability. The electrical inf...
Read More