Nanjing Tianyi Automobile Electric Manufacturing Co., Ltd.
                                                                                                           
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Sealed High Voltage DC Contactor 350A 750VDC for Electric Vehicles and Solar Power Systems

Price Negotiable
Price: Negotiation
MOQ: 120 PCS
Delivery Time: 15 working days after payment
Brand: TY
Product Description
Product Overview

This sealed small light high voltage DC contactor delivers exceptional performance for demanding power supply switching applications. With a compact design weighing only 0.38kg, it provides reliable operation across extreme temperature ranges from -55°C to 85°C.

Applications
  • Mining drive and control systems
  • Electric vehicles and mobile mining equipment
  • Aviation mobile devices and backup power supply systems
  • Hydrogen fuel cell drive systems
  • Ships, underwater equipment, and solar power systems
  • Large mobile power supply circuits
Technical Specifications
Parameter Specification
Contact Arrangement (Main) SPST-NO
Rated Operating Voltage 12-750VDC/VAC
Rated Carrying Current 350A (1/0 cable - 53mm² cross-section)
Maximum Carrying Current 2000A (1 second), 600A (60 seconds), 400A (600 seconds)
Maximum Cut-off Current 2000A, 320VDC (one time)
Contact Resistance 0.4mΩ max, 0.3mΩ typical at 350A
Mechanical Life 300,000 cycles
Operating Temperature Range -55°C to 85°C
Weight 0.38kg (without nuts/washers)
Key Features
  • Advanced ceramic construction matching space program standards
  • Hermetically sealed design prevents arcing leakage and fire risks
  • Excellent temperature resistance from -55°C to 85°C
  • Compact size with high current handling capacity up to 2000A
  • Sealing chamber protects against contact oxidation and melting
  • Suitable for harsh environments including immersion and extreme pressures
  • Position-insensitive mounting for flexible installation
  • Long operational life with 300,000 cycle mechanical durability
Product Images
Sealed High Voltage DC Contactor technical diagram and specifications Compact DC contactor showing sealed construction and connection points High voltage DC contactor internal components and ceramic sealing technology

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Nanjing Tianyi Automobile Electric Manufacturing Co., Ltd.
Location No. 8 Kaiping Road, Dongping Industrial Cluster, Lishui, Nanjing, Jiangsu Province, China
Contact Person Vicky

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