Posted on November 4, 2025 by Jeff -
The GTM400 is a world-class, fully bidirectional contactor engineered for today’s most demanding applications. Leveraging a proven sealing technology rooted in aerospace, military, and industrial heritage, the GTM400 delivers exceptional reliability and long-term performance under extreme conditions.
The GTM series combines the best aspects of traditional ceramic and epoxy to metal sealing technologies. The GTM400 design excels in performance with respect to breaking performance, temperature (stress) resistance, integral robustness, and short circuit withstand.
The GTM400 design provides reliable switching and circuit protection for high voltage applications up to 1500V and 400A, making them ideal choices for energy storage systems (ESS), high power DC fast charging, heavy vehicles, and other high voltage applications.
Posted on November 4, 2025 by Jeff -
The GTM500 is a world-class, fully bidirectional contactor engineered for today’s most demanding applications. Leveraging a proven sealing technology rooted in aerospace heritage from the 10s, the GTM500 delivers exceptional reliability and long-term performance under extreme conditions.
The GTM series combines the best aspects of traditional ceramic and epoxy to metal sealing technologies. The GTM500 design excels in performance with respect to breaking performance, temperature (stress) resistance, integral robustness, and short circuit withstand.
The GTM500 design provides reliable switching and circuit protection for high voltage applications up to 1500V and 500A, making it an ideal choice for energy storage systems (ESS), high power DC fast charging, heavy vehicles, and other high voltage applications.
Posted on December 6, 2024 by Jeff -
Founded in 1977, YAGEO Corporation is a leading global electronic component company with capabilities on a global scale, including production and sales facilities in Asia, Europe, and the Americas. The corporation provides one-stop-shopping, offering its complete product portfolio of resistors, capacitors, inductors, transformers, relays, antennas, wireless components, and Circuit protection components to meet the diverse requirements of customers.
YAGEO’s broad product offerings target key vertical markets, including applications in aerospace, automotive, 5G & telecommunications, industrial, medical, IoT, power management, green power, computer peripherals, and consumer electronics.
YAGEO Brands Include: KEMET – Pulse – Nexensos
Posted on August 8, 2024 by Jeff -
With voltage ratings up to 1000Vdc, the Sensata | Gigavac GV Series contactors are rated to switch loads in excess of 400 amps and interrupt short circuit currents up to 3500 amps (voltage dependent).
Like all Sensata | Gigavac contactors, the GV Series can be mounted on any axis or any orientation and is sealed to withstand virtually any harsh environment. All GV Series power contactors meet RoHS and CE Conformance requirements.
Applications
- Battery electric vehicles
- DC motor controller protection
- DC motor drive protection
- DC fast charging
- Photovoltaic controls
- Energy Storage systems
- Battery electric special mobility
Click here for a battery pack application note.
Posted on August 8, 2024 by Jeff -
Hermetically sealed High-Voltage DC Contactors are the world’s smallest UL508-approved contactors for 1000V high-voltage switching. Since first introducing the ceramic seal in 2006, Sensata | Gigavac sealed contactors have become the preferred choice for any application requiring sealed switching. Utilizing a hermetical seal means these high-voltage contactors exceed the sealing requirements of IP67 and IP69.
Going beyond hermetic sealing, the HX Series can withstand the rigors of virtually any harsh environment whether underwater or in the desert sun. The HX Series of High-Voltage Hermetically Sealed Contactors are particularly suited for inverter systems, battery packs, and combiner boxes in solar or wind power systems.
Applications
- Energy Storage System
- DC fast charging
- Photovoltaic controls
Posted on August 8, 2024 by Jeff -
This line of patented MiniTACTOR power contactors is small, lightweight, and cost effective. At less than 140 grams, the Sensata | Gigavac P-Series contactor can easily be installed in any orientation on a panel or PCB in a matter of seconds. Both the contacts and the coil are contained within a hermetically sealed chamber to ensure clean switching in any environment. Safe MAKE and BREAK power switching can be achieved at any voltage up to 1500Vdc.
The UL recognized, cRUus, P115 complies with solar energy requirements under NEC 690.11 and NEC 690.12. The MiniTACTOR models have a current carry of up to 80 amps and performance specifications that you would normally find in far more expensive contactors.
Applications
- Precharge circuits
- Battery chargers
- Solar applications
Click here for a battery pack application note.
Posted on August 8, 2024 by Jeff -
Single-Pole Single-Throw relays provide the most straightforward approach to isolation. A single stationary contact and a moveable contact furnish a simple on-off configuration. Forms include normally open (NO) and normally closed (NC). Normally open relays provide voltage isolation until coil power is applied. With coil power applied there is continuity through the relay contacts. Normally closed relays provide continuity through closed contacts until coil power is applied where the relay contacts open providing isolation.
Sensata | Gigavac offers several design styles including High-Voltage and RF reed relays along with traditional ceramic vacuum and gas-filled High-Voltage Relays. Each of these relay design types offers unique advantages depending on the application.
Click here for an Industrial High-Voltage Relay Application and Design Guide.
Posted on August 7, 2024 by Jeff -
Single-Pole Double-Throw relays offer a normally open and a normally closed contact set in one relay. The moveable contact transfers continuity from one stationary contact to the other when the coil is energized or de-energized. Voltage isolation is then between opposing stationary contact and the moveable contact.
Sensata | Gigavac offers several design styles of vacuum and gas-filled High-Voltage Relays. Vacuum or gas as a dielectric each offers unique advantages depending on the application.
Click here for an Industrial High-Voltage Relay Application and Design Guide.
Posted on August 7, 2024 by Jeff -
Double-Pole Double-Throw relays supply two single double-throw relays, SPDT, in one relay package. This combination provides tremendous design flexibility. Dual circuit functions can be controlled with a single coil signal. Since the contacts are mechanically linked in many applications, one of the contact sets is used as an auxiliary contact to provide circuit feedback indicating the relay contact position.
Sensata | Gigavac offers several design styles of vacuum and gas-filled High-Voltage Relays. Vacuum or gas as a dielectric each offers unique advantages depending on the application.
Click here for an Industrial High-Voltage Relay Application and Design Guide.
Posted on August 7, 2024 by Jeff -
Latching relays provide a unique feature that can be used in any basic relay form, SPST, SPDT, or DPDT. Most relays and contactors are considered “fail-safe.” Fail-safe relays require coil power applied continuously to make sure the relay is switched. Once coil power is removed the moveable contact in a fail-safe relay returns to its default position.
Latching relays require a momentary coil pulse to change the position of the moveable contact. Continuous coil power is not required to keep the relay in a particular switched state. When the application circuit needs to switch a latching relay, it sends a pulse to the coil to change the moveable contact position.
Click here for an Industrial High-Voltage Relay Application and Design Guide.
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