Sensata Gigavac GV141BAB DC Contactor

The Sensata Gigavac GV141BAB is a sealed hermetic DC contactor from the GV14 Series, designed for 400A current switching in 100VDC nominal power systems. It uses a 12VDC control coil, chassis mounting, stud and wire lead termination, and a normally open auxiliary contact. This model is suitable for EV battery systems, low-voltage battery packs, industrial DC power distribution, marine power control, material handling equipment, and OEM battery disconnect modules. In this model, 100VDC refers to the main contact switching voltage, while 12VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac GV141BAB DC contactor is built for reliable low-voltage, high-current DC switching in battery and power control systems. As part of the GV14 Series, this contactor provides a 400A contact current rating and 100VDC nominal switching voltage. It is a practical choice for battery disconnect circuits, electric vehicles, material handling equipment, marine battery systems, industrial DC cabinets, and compact OEM power modules.

The GV141BAB uses an SPST-NO main contact arrangement, also described as 1 Form X. The main power contact remains open when the coil is not energized and closes when the 12VDC coil receives the correct control signal. This allows a lower-voltage control circuit to manage a high-current DC load circuit. The 100VDC value belongs to the main switching path, while the 12VDC value belongs only to the coil circuit.

A key advantage of the Sensata Gigavac GV141BAB is its sealed hermetic construction. The sealed body helps protect the internal contact system from dust, humidity, oxidation, and harsh operating environments. This makes the GV141BAB suitable for mobile equipment, outdoor battery systems, industrial control cabinets, and vehicle platforms where vibration, moisture, and contamination can reduce the service life of ordinary open-frame contactors.

This version uses stud and wire lead termination for harness-based installation. Compared with PCB pin versions, the wire lead configuration is useful when the contactor needs to be connected into a vehicle harness, control box, or power distribution assembly. The “B” auxiliary option indicates a normally open auxiliary contact, which can support status feedback, interlock logic, or battery management system monitoring.

Key Features

• Genuine Sensata Gigavac GV14 Series DC contactor
• 400A contact rating for high-current DC power control
• 100VDC nominal switching voltage for low-voltage battery 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 construction for harsh environments
• Stud and wire lead termination for harness-based installation
• 20 ms operate time and 12 ms release time
• Wide operating temperature range from -55°C to 85°C

Applications

The GV141BAB DC contactor is suitable for systems that need dependable connection and disconnection of DC battery, load, or charging circuits. Typical applications include EV battery packs, electric forklifts, AGV equipment, low-voltage battery management systems, DC power cabinets, renewable energy control boxes, marine battery switching, UPS systems, and industrial automation equipment.

In a battery system, the Sensata Gigavac GV141BAB can be used as a main contactor, charge contactor, load disconnect contactor, or safety isolation device depending on the circuit design. Its 400A current rating and 100VDC switching voltage make it suitable for low-voltage, high-current platforms where sealed protection, auxiliary feedback, and stable switching performance are required.

Why Choose Sensata Gigavac GV141BAB

The Sensata Gigavac GV141BAB is a strong option when the system requires 400A current capacity, 100VDC switching voltage, 12VDC coil operation, chassis mounting, wire lead termination, and a normally open auxiliary contact. Compared with versions without auxiliary feedback, this model gives the control system an additional status signal for diagnostics or interlock design.

For replacement and maintenance projects, GV141BAB should be selected when the original design requires GV14 Series performance with 400A current rating, 100VDC nominal switching voltage, 12VDC coil voltage, stud and wire lead termination, and SPST normally open auxiliary contact. Before ordering, confirm coil voltage, auxiliary contact logic, mounting style, terminal type, load current, and system voltage.

FAQ

Q1: What is the full product name of GV141BAB?
A1: The full product name is Sensata Gigavac GV141BAB DC Contactor.

Q2: What is the main switching voltage?
A2: The main switching voltage is 100VDC nominal.

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 400A.

Q5: Does GV141BAB include an auxiliary contact?
A5: Yes. GV141BAB includes a normally open auxiliary contact.

Q6: What is the difference between GV141BAB and GV141BAC?
A6: GV141BAB has a normally open auxiliary contact, while GV141BAC has a normally closed auxiliary contact.