GIGAVAC GTM Bidirectional and SGX Contactors

GIGAVAC/Sensata Technologies GTM Bidirectional and SGX Contactors are hermetically sealed contactors designed for reliable high-voltage DC switching in demanding power systems. The GTM Bidirectional Contactors utilize glass-to-metal sealing to provide an electrically insulative hermetic seal. These contactors deliver efficient performance in breaking capacity, temperature resistance, durability, and short-circuit strength. The GTM400 and GTM500 bidirectional contactors operate within a temperature range from -40°C to +85°C and offer a rated voltage of 1500Vdc. These GTM contactors have a maximum contact resistance of 0.3mΩ and an insulation resistance of 100MΩ. Typical applications include Energy Storage Systems (ESSs), heavy vehicles, high-power DC fast charging, and transportation electrification systems.

The SGX Contactors are high-voltage DC contactors designed to provide reliable switching and protection in demanding power systems. These contactors feature a hermetically sealed ceramic construction with hydrogen gas filling to minimize oxidation and maintain low, stable contact resistance. The SGX contactors can handle a steady current of 150A to 400A with a maximum voltage of 1000V. Typical applications include material handling, residential ESS, and DC fast-charging applications.

Features

GTM Bidirectional Contactors

  • Advanced arc suppression
  • Best-in-class break performance
  • Fully bidirectional switching
  • GTMS sealing for durability
  • Hermetically sealed design
  • High-efficiency dual-coil design
  • Strong short-circuit withstand

SGX Contactors

  • Complies with IEC 60664-1 and RoHS compliant
  • Hermetically sealed ceramic design
  • Hydrogen-filled chamber provides low and stable contact resistance
  • Offers high insulation resistance 

Applications

  • DC fast charging
  • Energy Storage Systems (ESSs)
  • Heavy vehicles
  • High-power DC fast charging
  • Material handling
  • Residential ESS
  • Transportation electrification systems

Technical Specifications

ParametersSeries
GTMSGX
Contact Resistance0.3mΩ≤0.2mΩ at 200A
Dielectric Withstanding Voltage5375Vrms2600Vac to 4000Vac
Operating Temperature Range-40°C to +85°C
Nominal Coil Voltage12Vdc to 48Vdc12Vdc to 24Vdc
Insulation Resistance100MΩ1000MΩ at 1000Vdc

Video

This TTI Tech Specs video for GIGAVAC GTM Bidirectional and SGX Contactors highlights their reliable high-voltage DC switching capabilities. These contactors feature hermetically sealed construction and compact designs, delivering safe, dependable performance for EVs, energy storage, DC fast charging, and industrial applications.