Sensata Gigavac GV124CPB DC Contactor Overview

The Sensata Gigavac GV124CPB is a sealed DC contactor from the GV12 Series, designed for 200A current switching in 100VDC nominal power systems. It uses a 24VDC control coil, PC pin termination, PCB M8 mounting, and a normally open auxiliary contact. This model is suitable for EV battery packs, low-voltage battery systems, 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 24VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac GV124CPB DC contactor is designed for reliable low-voltage, high-current DC switching in compact battery and power control systems. As part of the GV12 Series, this contactor provides a 200A contact current rating and 100VDC nominal switching voltage. It is a practical choice for battery disconnect circuits, electric vehicle auxiliary power systems, material handling equipment, industrial DC cabinets, marine battery systems, and OEM control modules.

The GV124CPB uses an SPST-NO main contact arrangement, also described as 1 Form X. The main power contact stays open when the coil is not energized and closes when the 24VDC coil receives the proper control signal. This allows a low-voltage control circuit to switch a higher-current DC load circuit. The 100VDC rating belongs to the main switching path, while the 24VDC rating belongs to the coil circuit only.

A key difference between GV124CPB and GV124CPC is the auxiliary contact option. GV124CPB includes an SPST normally open auxiliary contact, while GV124CPC includes an SPST normally closed auxiliary contact. The normally open auxiliary contact can be used by the control system to monitor contactor status, support interlock logic, or provide feedback to a battery management system after the contactor changes state.

Key Features

• Genuine Sensata Gigavac GV12 Series DC contactor
• 200A contact rating for DC power switching
• 100VDC nominal switching voltage for low-voltage battery systems
• 24VDC coil for control circuit operation
• SPST-NO main contact form for normally open switching
• SPST normally open auxiliary contact for feedback or interlock use
• Sealed hermetic construction for harsh environments
• PC pin termination for compact OEM integration
• 20 ms operate time and 12 ms release time
• Wide operating temperature range from -55°C to 85°C

Applications

The GV124CPB DC contactor is suitable for systems that need dependable connection and disconnection of DC battery, load, or charging circuits. Typical applications include EV low-voltage battery disconnect units, electric forklifts, AGV equipment, 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 GV124CPB can be used as a main contactor, charge contactor, load disconnect contactor, or safety isolation device depending on the circuit design. The normally open auxiliary contact is especially useful when the controller needs a feedback signal for diagnostics, startup sequencing, or system confirmation after the main contact changes state.

Why Choose Sensata Gigavac GV124CPB

The Sensata Gigavac GV124CPB is a strong option when the system requires 200A current capacity, 100VDC switching voltage, 24VDC coil operation, PC pin termination, and a normally open auxiliary contact. Compared with contactors without auxiliary feedback, this model gives the control system an additional signal path for monitoring and interlock design.

For OEM manufacturers, the PCB M8 mounting style and PC pins support compact power module layouts and cleaner assembly. For replacement and maintenance projects, GV124CPB should be selected when the original design requires GV12 Series performance with 200A current rating, 100VDC nominal switching voltage, 24VDC coil voltage, PC pins, and SPST normally open auxiliary contact.

FAQ

Q1: What is the full product name of GV124CPB?
A1: The full product name is Sensata Gigavac GV124CPB DC Contactor.

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

Q3: What does the 24VDC specification mean?
A3: 24VDC 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 200A.

Q5: Does GV124CPB include an auxiliary contact?
A5: Yes. GV124CPB includes an SPST normally open auxiliary contact.

Q6: What is the difference between GV124CPB and GV124CPC?
A6: GV124CPB has