Sensata Gigavac HX22CAB DC Contactor

The Sensata Gigavac HX22CAB is a sealed hermetic DC contactor from the HX22 Series, designed for 300A current switching in high-voltage systems up to 1500VDC. It uses a 24VDC control coil, chassis mounting, stud and wire lead termination, 38 cm / 15 in flying leads, and a normally open auxiliary contact. This model is suitable for EV battery systems, battery energy storage equipment, solar and wind power systems, inverter systems, industrial DC power cabinets, marine power control, and high-voltage battery disconnect modules. In this model, 1500VDC refers to the main contact switching voltage, while 24VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac HX22CAB DC contactor is designed for reliable high-voltage DC switching in demanding battery and power conversion systems. As part of the HX22 Series, this model combines a 300A contact current rating with 1500VDC nominal switching capability, making it suitable for electric vehicles, battery energy storage systems, photovoltaic systems, inverter systems, industrial power distribution, and high-voltage battery disconnect circuits.

The HX22CAB 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 24VDC coil receives the correct control voltage. This allows a low-voltage control circuit to manage a high-voltage DC load path. The 1500VDC value belongs to the main switching circuit, while the 24VDC value belongs only to the coil control circuit.

A key feature of the Sensata Gigavac HX22CAB is its normally open auxiliary contact. The auxiliary contact can provide contactor status feedback to a battery management system, safety controller, or system monitoring circuit after the main contact changes state. Compared with HX22CA or versions without auxiliary feedback, the HX22CAB is better suited for systems that need confirmation, diagnostics, or interlock logic. Compared with HX22CAC, the HX22CAB uses normally open auxiliary logic instead of normally closed auxiliary logic.

The HX22 Series uses hermetically sealed construction for harsh operating environments. The sealed design helps protect the internal contact system from dust, humidity, oxidation, and contamination. Sensata describes the HX22 platform as a compact contactor for switching 1000+VDC systems and for applications such as solar, photovoltaic, inverter systems, battery packs, combiner boxes, and DC arc fault interrupter systems.

The HX22CAB configuration includes 38 cm / 15 in flying leads, giving practical wiring flexibility in battery cabinets, inverter assemblies, and high-voltage distribution boxes where the coil and auxiliary circuits must be routed to a controller or harness connection point.

Key Features

• Genuine Sensata Gigavac HX22 Series DC contactor
• 300A contact rating for high-voltage DC power control
• 1500VDC nominal switching voltage for high-voltage 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
• Hermetically sealed construction for harsh environments
• Stud and 38 cm / 15 in wire lead termination
• 20 ms operate time and 7 ms release time
• Suitable for EV, ESS, solar, inverter, and industrial DC systems

Applications

The HX22CAB DC contactor is suitable for high-voltage systems that need dependable connection and disconnection of battery, load, inverter, or charging circuits. Typical applications include EV battery packs, battery energy storage systems, photovoltaic combiner boxes, wind power systems, DC charging equipment, inverter power stages, UPS battery systems, marine electric propulsion, and industrial DC distribution cabinets.

In a battery system, the Sensata Gigavac HX22CAB can be used as a main positive contactor, main negative contactor, charge path contactor, load disconnect contactor, or safety isolation device depending on the system design. Its 300A current rating and 1500VDC switching voltage make it suitable for high-voltage platforms where sealed construction, auxiliary feedback, and stable switching performance are required.

Why Choose Sensata Gigavac HX22CAB

The Sensata Gigavac HX22CAB is a strong option when the system requires 300A current capacity, 1500VDC switching voltage, 24VDC coil operation, chassis mounting, 15 in wire leads, and a normally open auxiliary contact. Compared with lower-voltage contactors, this model is better matched to high-voltage battery and renewable energy systems. Compared with contactors without auxiliary feedback, the HX22CAB gives the control system an additional status signal.

For replacement and maintenance projects, HX22CAB should be selected when the original system requires HX22 Series performance with 300A contact rating, 1500VDC switching voltage, 24VDC coil voltage, 38 cm / 15 in flying leads, and SPST normally open auxiliary contact. Before ordering, confirm coil voltage, auxiliary contact logic, mounting direction, termination style, current rating, and system voltage.

FAQ

Q1: What is the full product name of HX22CAB?
A1: The full product name is Sensata Gigavac HX22CAB DC Contactor.

Q2: What is the main switching voltage?
A2: The main switching voltage is 1500VDC nominal.

Q3: What does 24VDC 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 300A.

Q5: Does HX22CAB include an auxiliary contact?
A5: Yes. HX22CAB includes an SPST normally open auxiliary contact.

Q6: What is the difference between HX22CAB and HX22CAC?
A6: HX22CAB has a normally open auxiliary contact, while HX22CAC has a normally closed auxiliary contact.