Sensata Gigavac HX22CCB

Sensata Gigavac HX22CCB is a 300A 1500VDC High Voltage DC Contactor from the HX22 series, designed for inverter cabinets, high-voltage DC bus isolation, battery interface circuits, and compact power conversion systems. This High Voltage DC Contactor uses an SPST-NO-DM main contact form, a 24VDC coil, stud power terminals, flying lead control termination, chassis mounting, normally open auxiliary contact functionality, and hermetically sealed construction. It is a practical choice for OEM systems that need 1500VDC-class switching, monitored contactor status, and a 300A current rating.

HX22CCB is positioned for high-voltage systems where the contactor must be supervised but does not need the larger current capacity of HX24 models. The 300A rating supports inverter inputs, charger branches, battery strings, and protected DC distribution paths. The sealed HX22 construction helps protect the internal contact chamber from humidity, dust, vibration, and airborne contamination, supporting stable operation in industrial cabinets and high-voltage battery equipment.

Product Positioning

HX22CCB should be positioned as a normally open auxiliary feedback High Voltage DC Contactor for inverter cabinets and 1500VDC-class power conversion equipment. Compared with HX22CCC, this model is best described with a normally open auxiliary contact focus, while HX22CCC can be positioned around a different monitored feedback configuration. Compared with HX21CAC, HX22CCB is a 300A HX22 option rather than a 350A HX21 option, making it better suited when the design calls for a smaller current class.

The 24VDC coil is useful in industrial control panels, inverter cabinets, charger systems, and battery management equipment. Many of these systems already use a 24V auxiliary supply for controllers, fans, sensors, interlocks, and contactors. Selecting this High Voltage DC Contactor helps keep the control architecture consistent while providing high-voltage isolation for the main DC path.

Key Specifications

• Manufacturer series: Sensata Gigavac HX22
• Part number: HX22CCB
• Product type: High Voltage DC Contactor
• Main contact form: SPST-NO-DM / 1 Form X
• Rated current: 300A
• Nominal switching voltage: 1500VDC
• Coil voltage: 24VDC
• Coil type: DC coil
• Power termination: stud terminals
• Control termination: flying leads / wire leads
• Mounting style: chassis mount / upright mount
• Auxiliary contact: included, normally open configuration referenced by distributor listing
• Construction: hermetically sealed
• Operating temperature range: -55°C to +85°C according to distributor data
• Typical operate time: approximately 20ms according to related HX series data
• Typical release time: approximately 7-12ms according to distributor and series data

Features and Benefits

The main benefit of HX22CCB is its combination of 1500VDC voltage capability and 300A current capacity. A High Voltage DC Contactor in this class can support high-voltage inverter systems, charger outputs, battery interfaces, and DC distribution branches where 800V contactors may not provide enough voltage margin.

The normally open auxiliary contact supports supervised switching. A controller can compare the coil command with auxiliary feedback before enabling an inverter, charger, or downstream DC load. In inverter cabinets, this feedback can support precharge confirmation, start-up sequencing, service lockout, fault detection, and controlled shutdown behavior.

The 24VDC coil simplifies integration with common industrial control systems. In many power conversion cabinets, 24VDC is already available for contactors, protection circuits, sensors, and control electronics. Using HX22CCB can reduce the need for additional coil power conversion and keep the control wiring easier to maintain.

Stud power terminals provide secure connection points for high-current cables or busbars. Flying leads allow the coil and auxiliary wiring to route to a remote controller or interlock board. This installation style is useful when the High Voltage DC Contactor must be mounted close to the DC bus while the control electronics are separated in a low-voltage compartment.

Hermetically sealed construction helps protect the internal contact system from environmental stress. Inverter cabinets, charger enclosures, and battery systems may face humidity, dust, vibration, and temperature cycling. A sealed High Voltage DC Contactor helps maintain more consistent switching performance across long service intervals.

Applications

HX22CCB is especially suitable for inverter cabinets and power conversion systems. In an inverter cabinet, this High Voltage DC Contactor can isolate the DC input, connect a battery string, switch a protected branch, or open the DC path during service and fault events. The 1500VDC rating makes it suitable for elevated-voltage architectures, while the 300A rating fits medium-high current power paths.

The contactor can also be used in charger cabinets, battery energy storage systems, renewable energy converters, DC distribution equipment, and high-voltage industrial power modules. In these applications, HX22CCB provides monitored switching with a 24V coil and auxiliary contact feedback, helping the controller confirm contactor state before enabling downstream power stages.

Selection Guide

Before selecting HX22CCB, confirm maximum DC bus voltage, continuous current, peak current, inrush current, switching frequency, and load type. This High Voltage DC Contactor is intended for 1500VDC-class systems and 300A current paths, but final suitability depends on precharge design, DC arc energy, cable sizing, busbar layout, fuse coordination, thermal rise, and enclosure conditions.

The coil supply should be a stable 24VDC source. Designers should verify coil driver capacity, flying lead routing, auxiliary contact wiring, terminal clearance, mounting orientation, and service access. If the system needs a higher current rating, HX21 or HX24 models may be more appropriate. If the system does not require auxiliary feedback, a no-auxiliary HX22 configuration may simplify the wiring.

FAQ

What is HX22CCB used for?

HX22CCB is used for inverter cabinets, charger branches, battery interfaces, renewable energy converters, and 1500VDC-class monitored DC switching.

Is HX22CCB a High Voltage DC Contactor?

Yes. HX22CCB is a Sensata Gigavac HX22 series High Voltage DC Contactor with 300A current rating and 1500VDC nominal switching capability.

What coil voltage does HX22CCB use?

HX22CCB uses a 24VDC coil, making it suitable for industrial control systems and power cabinets with a 24V auxiliary supply.

Does HX22CCB include auxiliary contacts?

Yes. DigiKey lists HX22CCB with auxiliary contacts, and RS references a normally open configuration.

How is HX22CCB different from HX22CCC?

Both are HX22 300A 1500VDC contactors with 24VDC coil configurations. HX22CCB is best positioned around normally open auxiliary feedback, while HX22CCC can be used for a different auxiliary contact configuration within the same HX22 family.

Conclusion

HX22CCB is a 300A 1500VDC High Voltage DC Contactor for inverter cabinets, charger systems, battery interfaces, and high-voltage power conversion equipment. With its Sensata Gigavac HX22 sealed construction, 24VDC coil, stud terminals, flying leads, chassis mounting, and normally open auxiliary contact functionality, it is a practical option for OEM systems that need monitored 1500VDC-class switching in a compact 300A configuration.