Sensata Gigavac GV122BAX DC Contactor Overview

The Sensata Gigavac GV122BAX is a sealed hermetic DC contactor from the GV12 Series, designed for 200A current switching in 100VDC nominal power systems. It uses a 12VDC control coil, chassis or side-flange mounting, stud and wire lead termination, and no 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 GV122BAX DC contactor is designed for reliable low-voltage, high-current DC switching in 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 GV122BAX 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 higher-current DC load path. The 100VDC 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 GV122BAX 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 GV122BAX 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. The side-flange chassis mount style is useful when the contactor needs to be installed inside a battery box, vehicle harness assembly, or power distribution cabinet. The X auxiliary option indicates no auxiliary contact, so GV122BAX is best suited for systems where separate contact feedback is not required or where status monitoring is handled by another circuit.

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
• 12VDC coil for control circuit operation
• SPST-NO main contact form for normally open switching
• No auxiliary contact for simplified circuit designs
• 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 GV122BAX 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 GV122BAX can be used as a main contactor, charge contactor, load disconnect contactor, or safety isolation device depending on the circuit design. Its 200A current rating and 100VDC switching voltage make it suitable for low-voltage, high-current platforms where sealed protection and stable switching performance are required.

Why Choose Sensata Gigavac GV122BAX

The Sensata Gigavac GV122BAX is a strong option when the system requires 200A current capacity, 100VDC switching voltage, 12VDC coil operation, wire lead termination, and no auxiliary contact. Compared with versions that include auxiliary feedback, this model is simpler for designs where the controller does not need a separate auxiliary signal.

For replacement and maintenance projects, GV122BAX should be selected when the original design requires GV12 Series performance with 200A current rating, 100VDC nominal switching voltage, 12VDC coil voltage, stud and wire lead termination, side-flange mounting, and no auxiliary contact. Before ordering, confirm coil voltage, auxiliary contact requirement, mounting style, terminal type, load current, and system voltage.

FAQ

Q1: What is the full product name of GV122BAX?
A1: The full product name is Sensata Gigavac GV122BAX 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 200A.

Q5: Does GV122BAX include an auxiliary contact?
A5: No. The X suffix indicates no auxiliary contact.

Q6: What is the difference between GV122BAX and GV121BAX?
A6: Both are GV12 200A 100VDC contactors with 12VDC coil and no auxiliary contact, but the mounting or mechanical configuration should be matched to the original installation.