Sensata Gigavac GV141CAB

The Sensata Gigavac GV141CAB is a GV14 Series hermetically sealed DC power contactor for high-current low-voltage DC switching. This model is configured with a 400 A contact current rating, 100VDC nominal switching voltage, a 24VDC coil, 15 inch flying leads, and a normally open auxiliary contact. The 100VDC value refers to the main power contacts and load circuit, while the 24VDC value refers to the coil/control circuit used to operate the contactor.

Product Description

The Sensata Gigavac GV141CAB is a compact high-current DC contactor designed for reliable switching in low-voltage battery and power distribution systems. As part of the GV14 Series, it provides a 400 A current rating with 100VDC nominal switching capability, making it suitable for battery disconnect circuits, vehicle power systems, material handling equipment, marine DC systems, industrial DC distribution, and high-current auxiliary power control.

GV141CAB uses a normally open main contact. In the de-energized state, the main power circuit is open and the load is isolated. When the 24VDC coil is energized, the contactor closes and current flows through the main terminals. When coil power is removed, the main contact opens again. This operating behavior makes the GV141CAB suitable for use as a main battery contactor, load contactor, charge contactor, auxiliary power contactor, or controlled DC disconnect in a properly designed system.

The full model number is important. “GV14” identifies the 400 A, 100VDC contactor family. The “1” indicates the upright mount style with stud power terminals. The “C” coil code indicates the 24VDC coil version. The “A” termination code indicates 15 inch flying leads. The final “B” indicates an SPST normally open auxiliary contact. The main contact is also SPST-NO, while the auxiliary contact is a low-current feedback contact and should not be used as a power switching path.

Key Features

• 400 A current rating for demanding low-voltage DC systems.
• 100VDC nominal switching voltage for battery and DC distribution circuits.
• 24VDC coil for common industrial, vehicle, marine, and battery control systems.
• SPST-NO main contact for controlled power connection and isolation.
• Normally open auxiliary contact mechanically linked to the main contacts.
• 15 inch flying leads for straightforward coil and auxiliary wiring.
• Hermetically sealed construction for harsh environments.
• Built-in coil suppression for simplified control circuit design.
• Wide operating temperature range from -55°C to +85°C.
• Sealing performance exceeds IP67 and IP69K requirements.

Applications

The Sensata Gigavac GV141CAB is commonly used in electric and hybrid vehicle low-voltage circuits, battery disconnect systems, material handling vehicles, marine power systems, industrial DC equipment, emergency vehicles, recreational vehicles, charging systems, and heavy-duty power distribution. Its 400 A rating makes it suitable for applications that require more current capacity than compact pre-charge contactors but do not need a high-voltage 800VDC or 1500VDC contactor.

The normally open auxiliary contact can be used by a controller, battery management system, or diagnostic circuit to monitor contactor state. Because the auxiliary contact is mechanically linked to the main power contacts, it provides useful feedback for status indication, sequencing, and interlock logic. The auxiliary contact is rated for signal use and must remain within its specified current and voltage limits.

Design Notes

The 100VDC and 24VDC values should not be treated as the same specification. The 100VDC rating belongs to the main contact path and describes the load-side DC circuit the contactor is intended to switch. The 24VDC rating belongs to the coil and describes the control voltage needed to actuate the contactor. A system can therefore use a 24V controller output to operate the coil while the main contacts switch a separate DC bus up to the rated voltage.

For circuits with capacitors, inverters, motor controllers, or long cable runs, system designers should evaluate inrush current and use pre-charge where required. Pre-charge helps protect the contactor contacts, fuses, cables, and connected electronics. Wiring, terminal torque, thermal design, and fault protection should follow the manufacturer’s guidance and the requirements of the final equipment.

Why Choose Sensata Gigavac GV141CAB

GV141CAB is a strong choice when a system needs a sealed 400 A DC contactor with 24V control and normally open auxiliary feedback. Compared with no-auxiliary versions, this model provides a feedback contact for status monitoring. Compared with PCB pin versions, the 15 inch flying leads make it easier to wire into harness-based vehicle, marine, and industrial equipment.

For backend product listings, replacement orders, and inventory records, use the full name Sensata Gigavac GV141CAB. Avoid shortening it to GV14 because related models can have different coil voltages, lead styles, mounting styles, or auxiliary contact options. For example, GV141BAX uses a 12VDC coil with no auxiliary contact, GV141CAX uses a 24VDC coil with no auxiliary contact, and GV141CAC uses a normally closed auxiliary contact. GV141CAB specifically identifies the 24VDC coil, 15 inch leads, and normally open auxiliary contact version.

FAQ

Is GV141CAB a 100V or 24V contactor?
It uses both values for different circuits. The main contacts switch a 100VDC nominal load circuit, while the coil/control circuit is 24VDC.

What is the current rating of GV141CAB?
GV141CAB is rated for 400 A continuous current.

Does GV141CAB include an auxiliary contact?
Yes. The final B in GV141CAB indicates an SPST normally open auxiliary contact.

What lead length does GV141CAB use?
GV141CAB uses 15 inch, or 38 cm, flying leads for the coil and auxiliary wiring.