Sensata Gigavac GX16CE

Sensata Gigavac GX16CE is a 600A 800VDC High Voltage DC Contactor from the GX16 series, designed for heavy DC power systems that need high current capacity, sealed switching, and a practical connector-based control interface. This High Voltage DC Contactor uses an SPST-NO-DM contact form, 24VDC internal coil, stud power terminals, 8-pin connector termination, chassis or flange mounting, and hermetically sealed construction. It is suitable for high-current battery systems, industrial DC buses, heavy electric platforms, power conversion cabinets, and demanding DC distribution equipment.

GX16CE is positioned above moderate-current contactors such as GX21 because it provides a 600A current rating for heavier power paths. At the same time, its 800VDC switching capability makes it useful in elevated-voltage DC systems where ordinary industrial relays are not appropriate. The sealed GX16 design helps protect the contact system from dust, moisture, and contamination, supporting reliable operation in equipment that may face vibration, temperature cycling, or long service hours.

Product Positioning

GX16CE should be positioned as a high-current High Voltage DC Contactor for heavy DC power distribution and main line isolation. It is not a miniature pre-charge contactor or a low-current relay. Its role is closer to main battery connection, inverter DC input control, DC bus isolation, charger output switching, and protected high-current branch control.

The 24VDC internal coil makes this High Voltage DC Contactor practical for industrial and vehicle control systems that already use 24V auxiliary power. The 8-pin connector helps simplify control wiring compared with loose lead configurations, which can be useful in equipment where fast service, repeatable assembly, and clean cabinet wiring matter.

Key Specifications

• Manufacturer series: Sensata Gigavac GX16
• Part number: GX16CE
• Product type: High Voltage DC Contactor
• Contact form: SPST-NO-DM / 1 Form X
• Rated current: 600A
• Maximum switching voltage: 800VDC
• Coil voltage: 24VDC
• Coil type: internal coil
• Termination style: connector and stud terminals
• Connector style: 8-pin connector according to distributor data
• Mounting type: chassis mount / flange mount
• Construction: hermetically sealed
• Operating temperature range: -55°C to +85°C
• Must operate voltage: approximately 16VDC according to DigiKey data
• Must release voltage: approximately 0.5VDC according to DigiKey data
• Typical operate time: approximately 20ms
• Typical release time: approximately 7ms

Features and Benefits

The main advantage of GX16CE is its 600A current rating. A High Voltage DC Contactor in this class can handle substantial DC loads in large battery packs, industrial power cabinets, high-current inverters, and heavy electric equipment. It gives engineers a stronger option than 150A or 400A contactors when the current path requires additional capacity.

The 800VDC switching capability supports modern DC power architectures used in energy systems, industrial machinery, electric vehicles, and power conversion platforms. GX16CE can be used where the voltage class exceeds compact 100V contactor families but does not require a 1500V HX platform. This makes the High Voltage DC Contactor useful across a broad range of high-current 800V-class designs.

The 24VDC internal coil supports straightforward control integration. Many control cabinets and mobile power systems use 24VDC for controllers, sensors, contactors, fans, and protection devices. Matching the contactor coil to that supply can simplify the auxiliary power design and reduce additional conversion hardware.

The connector and stud termination format is practical for production equipment. Stud terminals provide secure high-current connection points for cables or busbars, while the 8-pin connector supports cleaner control-side wiring. This can improve assembly repeatability and make service replacement more organized than individual loose control leads.

Hermetically sealed construction protects the internal switching chamber from environmental contamination. Dust, humidity, and airborne particles can reduce contact life in open designs. A sealed High Voltage DC Contactor helps maintain stable operation in industrial cabinets, heavy equipment, battery systems, and outdoor power enclosures.

Applications

GX16CE is especially suitable for heavy DC power systems. In a high-current battery cabinet, this High Voltage DC Contactor can connect or isolate the main DC bus, control an inverter input, switch a charger branch, or disconnect a protected output during service and fault conditions. The 600A rating makes it suitable for heavier current paths where smaller contactors may not provide enough margin.

The contactor can also be used in industrial DC distribution, mobile electrification, utility equipment, power conversion cabinets, marine DC systems, and large backup power platforms. Its 800VDC capability and sealed construction allow it to support demanding environments where voltage stress, current capacity, and reliability all matter.

For OEM cabinet builders, GX16CE can serve as a main positive contactor, main negative contactor, or high-current branch contactor depending on the system architecture. It should be paired with appropriate fusing, precharge strategy, cable sizing, thermal design, and control logic.

Selection Guide

Before selecting GX16CE, confirm the maximum DC voltage, continuous current, peak current, inrush current, switching frequency, and expected duty cycle. This High Voltage DC Contactor is rated for 600A and up to 800VDC switching, but real application suitability depends on load type, circuit energy, thermal rise, busbar layout, protection devices, and environmental conditions.

The coil supply should be a stable 24VDC source. Designers should confirm driver current capacity, must-operate voltage, must-release voltage, connector pinout, and any coil suppression or control requirements. Mechanical design should review stud spacing, cable bend radius, connector access, mounting orientation, and service clearance.

If the application requires a different control voltage, auxiliary contact arrangement, or mounting format, related GX16 variants should be reviewed. If the system current is significantly lower, a smaller GX or GV series contactor may be more appropriate. If the system voltage is above the 800V class, an HX series contactor may be a better fit.

FAQ

What is GX16CE used for?

GX16CE is used for high-current DC switching in battery systems, industrial DC distribution, inverter inputs, charger outputs, heavy electric platforms, and power conversion cabinets.

Is GX16CE a High Voltage DC Contactor?

Yes. GX16CE is a Sensata Gigavac GX16 series High Voltage DC Contactor with 600A current rating and up to 800VDC switching capability.

What coil voltage does GX16CE use?

GX16CE uses a 24VDC internal coil. DigiKey data lists a must-operate voltage of approximately 16VDC and a must-release voltage of approximately 0.5VDC.

What termination style does GX16CE use?

GX16CE uses stud terminals for the power path and an 8-pin connector for the control side, with chassis or flange mounting.

How is GX16CE different from GX21CC?

GX16CE is a 600A GX16 contactor for heavier DC power paths, while GX21CC is a 150A GX21 contactor for moderate-current 800VDC switching.

Conclusion

GX16CE is a 600A 800VDC High Voltage DC Contactor for heavy DC power systems, industrial distribution, battery cabinets, inverter inputs, and high-current power conversion equipment. With its Sensata Gigavac GX16 sealed construction, 24VDC internal coil, stud terminals, 8-pin connector, chassis mounting, and high-current switching capacity, it is a practical option for OEM designs that need reliable 800VDC-class isolation in demanding power architectures.