Sensata Gigavac HX241CAC DC Contactor

The Sensata Gigavac HX241CAC is a sealed high-voltage DC contactor from the HX24 Series, designed for 400A current switching in high-voltage systems up to 1500VDC. It uses a 24VDC control coil, flying lead coil termination, upright chassis mounting, and a normally closed auxiliary contact. This model is suitable for EV battery systems, 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 HX241CAC DC contactor is designed for reliable high-voltage DC switching in demanding power systems. As part of the HX24 Series, this model combines a 400A contact current rating with 1500VDC switching capability, making it suitable for applications where high voltage, high current, sealed protection, and compact installation are required. It is commonly selected for electric vehicles, battery energy storage systems, renewable energy systems, inverter systems, industrial power distribution, and high-voltage battery disconnect circuits.

The HX241CAC 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 lower-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 HX241CAC is its normally closed auxiliary contact. The auxiliary contact can provide contactor status feedback to a battery management system, safety controller, or system monitoring circuit. Compared with HX241CAX, which has no auxiliary contact, the HX241CAC is better suited for applications where the controller needs feedback or interlock logic. Compared with HX241CAB, which uses a normally open auxiliary contact, the HX241CAC provides normally closed auxiliary logic.

The HX24 Series uses hermetically sealed construction for demanding environments. The sealed design helps protect the internal contact system from dust, humidity, oxidation, and contamination. According to Sensata, the HX Series is designed for high-voltage switching and harsh operating environments, with sealing performance suited for applications such as inverter systems, battery packs, and combiner boxes in solar or wind power systems.

Key Features

• Genuine Sensata Gigavac HX24 Series power contact