Sensata Gigavac GV141BAX

Sensata Gigavac GV141BAX is a 400A 100VDC High Voltage DC Contactor from the GV14 series, designed for aircraft battery systems, avionics support power, ground service power modules, and compact 12V-controlled DC switching assemblies. This High Voltage DC Contactor uses an SPST-NO-DM main contact form, a 12VDC dual DC coil, stud power terminals, wire lead control termination, chassis mounting, and hermetically sealed construction. It is a practical option when the system needs high current capacity at 100VDC while keeping the control side compatible with 12V auxiliary power.

GV141BAX is best positioned for low-voltage high-current power systems where current handling matters more than high bus voltage. The 400A rating supports battery outputs, crossfeed circuits, charger inputs, inverter branches, and service disconnect paths. Its sealed GV14 construction helps protect the contact chamber from dust, humidity, and airborne contamination, which is useful in equipment bays, service carts, compact power enclosures, and demanding mobile electrical systems.

Product Positioning

GV141BAX should be positioned as a 12V coil High Voltage DC Contactor for aircraft-style battery isolation and compact high-current DC control. Compared with GV141BAB, this model is better treated as the simpler no-auxiliary-contact configuration, while GV141BAB is associated with SPST-NO auxiliary feedback. Compared with GV141CAX, GV141BAX uses a 12VDC coil instead of a 24VDC coil.

The no-auxiliary-contact format is useful when the system already verifies contactor behavior through voltage sensing, current measurement, power-bus state, or controller logic. In battery isolation modules and service power systems, this can keep wiring simpler while still allowing the High Voltage DC Contactor to handle the main power switching function.

Key Specifications

• Manufacturer series: Sensata Gigavac GV14
• Part number: GV141BAX
• Product type: High Voltage DC Contactor
• Main contact form: SPST-NO-DM / 1 Form X
• Rated current: 400A
• Nominal switching voltage: 100VDC
• Coil voltage: 12VDC
• Coil type: dual DC coil
• Coil resistance: approximately 52.17 ohms according to distributor data
• Power termination: stud terminals
• Control termination: wire leads / flying leads
• Mounting style: chassis mount / upright mounting
• Auxiliary contact: not listed in checked public distributor data
• Construction: hermetically sealed
• Operating temperature range: -55°C to +85°C
• Typical operate time: approximately 20ms
• Typical release time: approximately 12ms

Features and Benefits

The 400A current rating is the main reason to choose GV141BAX. A High Voltage DC Contactor in this current class can control demanding 100VDC battery paths, inverter feeds, charger connections, and high-current auxiliary circuits where smaller contactors may not provide enough margin.

The 12VDC dual DC coil is useful for systems that already use 12V controls. Battery management electronics, service switches, cockpit or operator controls, and small power controllers may all be built around a 12V auxiliary supply. GV141BAX allows the contactor coil to match that architecture without adding a separate 24V control rail.

Stud terminals provide secure high-current cable or busbar connections. Low-voltage systems can still carry very high current, so conductor sizing, terminal torque, thermal rise, and protection coordination matter. The stud format makes this High Voltage DC Contactor practical for power bays and battery compartments.

Wire leads allow the coil circuit to route to a controller, panel switch, interlock harness, or service circuit. This gives equipment builders freedom to place the contactor close to the main DC conductors while keeping low-voltage controls in a more accessible area.

Hermetically sealed construction supports reliable operation in harsh environments. A sealed High Voltage DC Contactor helps protect the internal contact system from moisture, airborne particles, vibration-related contamination, and oxidation effects that can reduce the life of open contactor designs.

Applications

GV141BAX is especially suitable for aircraft battery systems and compact service power equipment. In an aircraft-style electrical system, this High Voltage DC Contactor can be used to isolate a battery, connect a crossfeed path, control a charger branch, or switch a high-current auxiliary DC circuit when the voltage and current requirements match the device rating.

The contactor can also be used in ground service power modules, mobile maintenance equipment, compact DC distribution panels, utility vehicles, backup power boxes, and industrial battery systems. Its 100VDC class makes it appropriate for lower-voltage architectures, while the 400A rating supports substantial current paths.

Selection Guide

Before selecting GV141BAX, confirm that the system is within the 100VDC and 400A class. Review continuous current, peak current, inrush current, load type, switching frequency, cable sizing, thermal rise, and fuse coordination. Battery circuits, inverter inputs, and charger connections may require precharge or other protection depending on the complete design.

The coil supply should be a stable 12VDC source. If the equipment uses 24VDC control power, GV141CAX may be a better match. If contactor feedback is required, choose a related GV14 model with auxiliary contact functionality, such as GV141BAB or another auxiliary-contact variant.

FAQ

What is GV141BAX used for?

GV141BAX is used for aircraft battery systems, service power modules, compact DC distribution, battery isolation, charger branches, and 100VDC-class high-current switching.

Is GV141BAX a High Voltage DC Contactor?

Yes. GV141BAX is a Sensata Gigavac GV14 series High Voltage DC Contactor with 400A current rating and 100VDC nominal switching capability.

What coil voltage does GV141BAX use?

GV141BAX uses a 12VDC dual DC coil, making it suitable for systems with a 12V auxiliary control supply.

Does GV141BAX include auxiliary contacts?

Checked distributor data does not clearly list auxiliary contact functionality for GV141BAX, so it should be treated as a no-auxiliary-contact configuration unless the ordering documentation confirms otherwise.

How is GV141BAX different from GV141BAB?

GV141BAX is best treated as the no-auxiliary-contact 12V coil configuration, while GV141BAB is associated with SPST-NO auxiliary contact feedback. Both are GV14 400A 100VDC contactors.

Conclusion

GV141BAX is a 400A 100VDC High Voltage DC Contactor for aircraft battery systems, service power modules, compact DC distribution, and high-current 12V-controlled power assemblies. With its Sensata Gigavac GV14 sealed construction, 12VDC dual DC coil, stud terminals, wire leads, chassis mounting, and normally open main contact form, it is a practical choice for OEM systems that need reliable high-current switching in lower-voltage DC architectures.