Sensata Gigavac GX110BEB DC Contactor

The Sensata Gigavac GX110BEB is a sealed hermetic DC contactor from the GX110 Series, designed for very high-current switching in power systems up to 800VDC. It provides a 1000A contact rating, 12VDC coil operation, chassis mounting, connector and stud termination, and a normally open auxiliary contact. This model is suitable for electric vehicles, battery energy storage systems, heavy-duty DC power distribution, marine power control, industrial battery systems, mining equipment, rail systems, and OEM battery disconnect modules. In this model, 800VDC refers to the main contact switching voltage, while 12VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac GX110BEB DC contactor is designed for reliable high-current switching in demanding battery and DC power systems. As part of the GX110 Series, this model supports a 1000A contact current rating and up to 800VDC maximum switching voltage. It is commonly used in electric vehicles, energy storage systems, heavy-duty industrial equipment, marine power systems, mining equipment, rail power systems, UPS battery cabinets, and large battery disconnect assemblies.

The GX110BEB uses an SPST-NO main contact arrangement, also described as 1 Form X. The main contact remains open when the coil is not energized and closes when the 12VDC coil receives the correct control voltage. This allows a low-voltage control circuit to manage a very high-current DC power path. The 800VDC value belongs to the main switching circuit, while the 12VDC value belongs only to the coil control circuit.

A key advantage of the Sensata Gigavac GX110BEB is its rugged hermetically sealed EPIC construction. The sealed contact chamber helps protect the internal contact system from dust, moisture, oxidation, and contamination. Sensata describes the GX110 platform as using an EPIC seal rated to 175°C, designed to reduce risk in over-current conditions and support harsh applications where open-frame contactors may not provide enough environmental protection.

The GX110BEB also includes a normally open auxiliary contact. This auxiliary contact can provide contactor status feedback to a controller, battery management system, or safety circuit after the main contact changes state. Compared with GX110BE, which has no auxiliary contact, GX110BEB is better suited for systems that need diagnostics, interlock logic, or main contact position confirmation.

This model uses connector and stud termination. The stud terminals support secure high-current power connections, while the connector interface helps organize coil and auxiliary wiring. This configuration is practical for large battery packs, DC power cabinets, and industrial assemblies where reliable power connection and clean control wiring are both important.

Key Features

• Genuine Sensata Gigavac GX110 Series DC contactor
• 1000A contact rating for very high-current DC power control
• 800VDC maximum switching voltage for battery and DC bus systems
• 12VDC coil for control circuit operation
• SPST-NO main contact form for normally open switching
• SPST normally open auxiliary contact for feedback or interlock use
• Hermetically sealed EPIC construction for harsh environments
• Connector and stud termination for secure installation
• 20 ms operate time and 20 ms release time
• Suitable for EV, ESS, marine, rail, mining, and industrial DC systems

Applications

The GX110BEB DC contactor is suitable for systems that need reliable connection and disconnection of very high-current DC battery, load, or charging circuits. Typical applications include electric vehicles, battery energy storage systems, DC power distribution cabinets, marine battery systems, UPS battery modules, rail equipment, mining vehicles, heavy-duty industrial equipment, and large battery disconnect systems.

In a battery system, the Sensata Gigavac GX110BEB can be used as a main positive contactor, main negative contactor, charge path contactor, load disconnect contactor, or safety isolation device depending on the electrical design. Its 1000A current rating and 800VDC switching capability make it suitable for high-current platforms where sealed construction, auxiliary feedback, and stable switching performance are required.

Why Choose Sensata Gigavac GX110BEB

The Sensata Gigavac GX110BEB is a strong option when the system requires 1000A current capacity, up to 800VDC switching voltage, 12VDC coil operation, sealed construction, connector and stud termination, and a normally open auxiliary contact. Compared with lower-current contactors, this model is better suited for heavy-duty battery and DC bus applications. Compared with versions without auxiliary feedback, the GX110BEB gives the control system an additional status signal.

For replacement and maintenance projects, GX110BEB should be selected when the original system requires GX110 Series performance with 1000A contact rating, 800VDC maximum switching voltage, 12VDC coil voltage, chassis mounting, connector/stud termination, and normally open auxiliary contact. Before ordering, confirm coil voltage, auxiliary contact logic, load current, switching voltage, mounting space, and terminal requirements.

FAQ

Q1: What is the full product name of GX110BEB?
A1: The full product name is Sensata Gigavac GX110BEB DC Contactor.

Q2: What is the main switching voltage?
A2: The main switching voltage is up to 800VDC maximum.

Q3: What does 12VDC mean?
A3: 12VDC is the coil voltage used to operate the contactor, not the main load voltage.

Q4: What is the current rating?
A4: The contact rating current is 1 kA, equal to 1000A.

Q5: Does GX110BEB include an auxiliary contact?
A5: Yes. GX110BEB includes a normally open auxiliary contact.

Q6: What is the difference between GX110BEB and GX110BE?
A6: GX110BEB includes a normally open auxiliary contact, while GX110BE has no auxiliary contact.