Sensata Gigavac HX21

Sensata Gigavac HX21 is an HX series High Voltage DC Contactor platform for compact 1500VDC-class power systems. This High Voltage DC Contactor family is commonly used where a design needs about 350A current capacity, high-voltage DC switching, stand-up mounting, low-power coil options, and patented EPIC hermetic sealing. HX21 is a practical High Voltage DC Contactor choice for solar power equipment, photovoltaic inverter systems, battery packs, DC combiner boxes, arc fault interrupter assemblies, and other high-voltage DC systems.

The HX21 High Voltage DC Contactor is designed for applications that need more voltage capability than common 800V contactors. Sensata HX21 materials describe the series as a small, compact contactor for switching 1000+VDC systems, and distributor listings for HX21CAB show 350A current and 1500VDC nominal switching. For backend product copy where the visible product name is HX21, it is best to describe HX21 as a High Voltage DC Contactor series platform rather than forcing one suffix configuration into every field.

Product Positioning

HX21 is positioned as a solar and inverter High Voltage DC Contactor for compact high-voltage systems. It is not a low-voltage MX product and not a 1000A HX460 contactor. HX21 fits the middle range where the equipment needs a 350A High Voltage DC Contactor for 1500VDC-class battery, inverter, and combiner applications.

The page angle for HX21 is photovoltaic and battery inverter switching. A High Voltage DC Contactor in this role may connect a battery pack to an inverter, isolate a PV combiner output, control a charger branch, or open a DC bus before service. The sealed EPIC construction helps the HX21 High Voltage DC Contactor operate in harsh equipment environments.

Key Specifications

• Model: HX21
• Brand: Sensata-Gigavac
• Series: HX21
• Product type: High Voltage DC Contactor
• Current rating: 350A High Voltage DC Contactor class
• Voltage class: 1500VDC High Voltage DC Contactor class for suffix listings such as HX21CAB
• Contact form: SPST-NO-DM / 1 Form X on common HX21 suffix listings
• Coil options: low-power 12VDC, 24VDC, or 48VDC options depending on suffix
• Mounting style: stand-up / chassis mount High Voltage DC Contactor design
• Construction: patented EPIC hermetic seal High Voltage DC Contactor body
• Environmental sealing: exceeds IP67/IP69 family references in HX series materials
• Typical role: solar High Voltage DC Contactor, inverter High Voltage DC Contactor, battery pack High Voltage DC Contactor, DC combiner High Voltage DC Contactor

Features and Benefits

The first benefit of HX21 is compact 1500VDC-class switching. A High Voltage DC Contactor for solar and battery inverter equipment must handle high voltage without taking unnecessary cabinet space. HX21 gives designers a compact High Voltage DC Contactor for 350A-class power paths.

The second benefit is sealed EPIC construction. A High Voltage DC Contactor in a solar inverter, battery pack, or DC combiner box may face dust, humidity, heat, and field service exposure. The sealed HX21 High Voltage DC Contactor helps keep the switching environment protected and reduces exposed arcing to open air environments.

The third benefit is stand-up mounting with integrated safety cover references in HX21 series materials. This helps the High Voltage DC Contactor fit power cabinets where cable routing, service access, and touch-safe layout matter. In a DC combiner or inverter cabinet, a clear contactor position helps technicians identify the isolation point.

The fourth benefit is low-power coil availability. HX21 series materials reference 12VDC, 24VDC, and 48VDC continuous power coil options depending on the exact suffix. A low-power High Voltage DC Contactor can help reduce auxiliary power demand in battery-powered systems.

Applications

HX21 is commonly used as a High Voltage DC Contactor in photovoltaic systems. It can switch PV combiner outputs, inverter DC inputs, solar storage connections, and DC arc fault interrupter paths. In these systems, the High Voltage DC Contactor helps isolate a high-voltage DC branch under controller command.

In battery systems, HX21 can serve as a High Voltage DC Contactor for pack output switching, charger interface control, inverter connection, or service isolation. The High Voltage DC Contactor is also useful in industrial HVDC cabinets, renewable energy test benches, compact ESS equipment, and DC power conversion assemblies.

Because HX21 is a series-level product name, the exact suffix should be checked before final engineering use. Coil voltage, auxiliary contact option, lead length, and termination details can vary. The High Voltage DC Contactor selection should always match the real part number and system wiring plan.

Selection Guide

Select HX21 when the application needs a compact 350A High Voltage DC Contactor for 1500VDC-class solar, inverter, battery pack, or DC combiner service. If the system requires a confirmed 24V coil and auxiliary contacts, HX21CAB is one known suffix direction. If the system requires a different coil voltage, choose the exact HX21 High Voltage DC Contactor suffix that matches the controller.

Before installation, confirm maximum DC voltage, current profile, coil voltage, auxiliary feedback, precharge design, fuse coordination, cable routing, mounting clearance, and thermal conditions. A High Voltage DC Contactor in solar or inverter equipment should be validated as part of the complete power conversion system.

FAQ

Is HX21 a High Voltage DC Contactor?

Yes. HX21 is a Sensata-Gigavac High Voltage DC Contactor series for compact high-voltage DC switching.

What current and voltage class does HX21 support?

HX21 is commonly associated with 350A current class and 1500VDC-class High Voltage DC Contactor applications, depending on the exact suffix.

Where is HX21 commonly used?

HX21 is commonly used as a High Voltage DC Contactor in solar equipment, photovoltaic inverters, battery packs, DC combiner boxes, charger circuits, and high-voltage DC power systems.

Should the exact HX21 suffix be confirmed?

Yes. HX21 is a series name, so the exact High Voltage DC Contactor suffix should be confirmed for coil voltage, auxiliary contacts, lead style, and termination details.

Conclusion

Sensata Gigavac HX21 is a compact 350A, 1500VDC-class High Voltage DC Contactor platform for solar, inverter, battery pack, DC combiner, and high-voltage power conversion systems. With sealed EPIC construction, stand-up mounting, and low-power coil options by suffix, HX21 is a practical High Voltage DC Contactor family for equipment that needs reliable high-voltage switching in a compact package.