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350a 2-pole high voltage interlock loop connector
2-pin 350a plastic connector system
350a high voltage connector mating socket
350a 2-pole high voltage interlock loop connector
2-pin 350a plastic connector system
350a high voltage connector mating socket

SH3 Series 2-Pole 350A High Current Plastic Connector

The SH3 Series is a next-generation high-voltage, high-current plastic connector designed for reliable power distribution in new energy vehicles. With a maximum current rating of 350A and a rated voltage of 1000V DC, the SH3 connector ensures safe and efficient energy transfer between key electrical components.
Temp Range :
-40℃~ +140℃
Max Current :
350A
Rated Voltage :
1000V
Sealing Class :
IP68, IP6K9K
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SH3 Series 2-POS High Voltage Interlock Connector Details
Built with a durable plastic housing, Guchen SH3 connector integrates a handle-assisted locking mechanism, delivering both secure mating and effortless operation. To enhance system safety and reliability, the SH3 series incorporates multiple keying options for error-proofing, high-voltage interlock (HVIL), shielding, and comprehensive dust and water protection.
The SH3 Series combines robust electrical performance with lightweight plastic construction, making it an ideal solution for modern electric mobility platforms requiring high safety, high durability, and high efficiency in power connection systems.
350A 2-POS High Voltage Interlock Connector
Features of SH3 Series 2-Pole 350A HV Plastic Connectors
◆ High-current capability: Supports up to 350A for demanding EV applications
◆ Wide conductor compatibility: Accepts cables from 50mm² to 95mm² to match current-carrying requirements
◆ Secure & user-friendly design: Handle-assisted locking for easy connection and disconnection
◆ Reliable termination methods:
  • Plug contacts: Ultrasonic welding
  • Socket terminals: M6 bolt connections (recommended torque: 8 N·m)
◆ Safety & protection:
  • Rated voltage: 1000V DC
  • Withstand voltage: 3000 VAC (power), 500 VAC (signal)
  • Ingress protection: IP68 (mated, 1 m/24 h), IPX9K (mated), IPXXB (unmated)
  • Flame retardant materials: Plastic UL94-V0; Rubber UL94-HB
Salt spray resistance: Meets 480-hour neutral salt spray test
Technical Specification of SH3 Connector
 
Description Item No. SH3
Electrical Performance Rated voltage 1000V
Withstand voltage Power Contacts: 3000 VAC; Signal Contacts: 500 VAC
Rated current 350A
Insulation resistance Test Voltage: 1000V; Insulation Resistance: 5000 MΩ (ambient temperature and humidity), 
200 MΩ (damp heat condition)
Mechanical Properties Pins 2pins
Mating cycles >50 Times
Cross sections 2x50mm²  2x70mm²  2x95mm²
Vibration class acc. To Test VII for Elastomers in Commercial Vehicles, according to GB/T 28046.3
Raw Material Housing PA66-GF25
Shielding Copper alloy
Insulator PA66-GF25
Sealing Silicone Rubber material
Environmental Performance Operating temperature -40℃~140℃
Protection Grade IP68 (mated, 1m for 24h), IPX9K (mated), IPXXB (unmated)
Salt Spray 480h

 
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