Sensata Gigavac GX11TAB

Sensata Gigavac GX11TAB is a 150A 800VDC High Voltage DC Contactor from the GX11 series, designed for compact battery modules, small electric platforms, DC converter interfaces, and controlled high-voltage branch switching. This High Voltage DC Contactor uses an SPST-NO-DM contact form, a 24VDC low-power internal coil, stud power terminals, flying lead control termination, chassis mounting, auxiliary contact functionality, and hermetically sealed construction. It is a practical option when the system needs 800VDC capability but does not require a larger 400A or 600A contactor.

GX11TAB is best suited to moderate-current DC paths where voltage rating, sealed reliability, and compact installation are more important than maximum current capacity. The 150A rating supports auxiliary battery outputs, charger interface circuits, converter inputs, high-voltage accessory branches, and small power distribution modules. The flying lead format allows flexible control wiring, while the stud terminals provide secure power connections for cables or busbars.

Product Positioning

GX11TAB should be positioned as a compact High Voltage DC Contactor for 24V-controlled battery and converter systems. Compared with GX21CC, GX11TAB belongs to the same 150A class but is commonly listed with a low-power internal coil and auxiliary contact functionality, making it suitable for monitored switching where control power consumption matters. Compared with GX16CE, it is a smaller current-class option for circuits that do not need 600A capacity.

The 24VDC low-power internal coil is a key advantage in compact equipment. Many battery systems, power electronics cabinets, mobile machines, and industrial controllers use 24V auxiliary power. Selecting a High Voltage DC Contactor with a matching low-power coil can simplify the control design and reduce steady auxiliary load during long operating periods.

Key Specifications

• Manufacturer series: Sensata Gigavac GX11
• Part number: GX11TAB
• Product type: High Voltage DC Contactor
• Contact form: SPST-NO-DM / 1 Form X
• Rated current: 150A
• Maximum switching voltage: 800VDC
• Coil voltage: 24VDC
• Coil type: low-power internal coil
• Termination style: stud terminals and flying leads
• Mounting type: chassis mount
• Auxiliary contacts: included according to DigiKey data
• Construction: hermetically sealed
• Operating temperature range: -55°C to +85°C
• Typical operate time: approximately 20ms according to distributor data
• Typical release time: approximately 12ms according to distributor data

Features and Benefits

The main benefit of GX11TAB is its 800VDC switching capability in a compact 150A package. A High Voltage DC Contactor in this class can handle elevated-voltage DC circuits that are too demanding for ordinary relays, while avoiding the size and cost of larger main-line contactors. This makes it useful for auxiliary high-voltage paths, branch isolation, compact battery equipment, and converter control circuits.

The low-power 24VDC internal coil helps reduce control-side energy demand. In battery-powered or continuously energized equipment, coil power can affect thermal design and auxiliary load budgeting. GX11TAB provides a practical coil configuration for systems that need reliable contactor operation without unnecessary control power consumption.

The auxiliary contact supports monitored switching. A controller can compare the coil command with the auxiliary feedback signal to confirm whether the High Voltage DC Contactor has changed state. This is useful in compact battery modules, charger interfaces, and converter cabinets where sequencing and fault detection are important.

Stud terminals and flying leads give the contactor flexible installation options. The power path can connect through secure studs, while the coil and auxiliary leads can be routed to a controller, interlock board, or harness. This helps cabinet builders place the contactor close to the DC bus without forcing the control electronics into the same location.

Hermetically sealed construction protects the internal contact system from dust, moisture, and contamination. A sealed High Voltage DC Contactor is useful in mobile equipment, enclosed battery modules, industrial cabinets, and outdoor power compartments where environmental exposure can shorten the life of open switching devices.

Applications

GX11TAB is especially suitable for compact battery modules and converter interface circuits. In a battery-powered system, this High Voltage DC Contactor can isolate an auxiliary high-voltage branch, connect a DC/DC converter input, control a charger interface, or disconnect a protected load during service and fault conditions. The 150A rating is suitable for moderate-current paths where a larger contactor would be oversized.

The contactor can also be used in marine electric systems, mobile power equipment, industrial DC distribution, battery test fixtures, charger support modules, and small renewable energy cabinets. In these applications, GX11TAB provides controlled 800VDC-class switching with a 24V coil and feedback capability.

For OEM designs, GX11TAB can serve as a branch contactor, accessory contactor, converter input contactor, or monitored isolation contactor. The final role should be based on actual current, switching frequency, precharge strategy, cable sizing, thermal rise, and protection requirements.

Selection Guide

Before selecting GX11TAB, confirm the maximum DC voltage, continuous current, peak current, inrush current, and switching duty. This High Voltage DC Contactor is rated for 150A and up to 800VDC, but final suitability depends on load type, circuit energy, precharge design, conductor size, ambient temperature, and protective device coordination.

The coil supply should be a stable 24VDC source. Designers should verify coil driver capacity, auxiliary contact wiring, flying lead routing, mounting orientation, and stud terminal clearance. If the system needs a higher current rating, GX16 or GV24 models may be more appropriate. If the application does not require auxiliary feedback, another GX11 configuration may be simpler.

FAQ

What is GX11TAB used for?

GX11TAB is used for compact battery modules, converter inputs, charger interfaces, auxiliary high-voltage branches, and 800VDC-class moderate-current switching.

Is GX11TAB a High Voltage DC Contactor?

Yes. GX11TAB is a Sensata Gigavac GX11 series High Voltage DC Contactor with 150A current rating and 800VDC maximum switching voltage.

What coil voltage does GX11TAB use?

GX11TAB uses a 24VDC low-power internal coil, making it suitable for systems with a 24V auxiliary control supply.

Does GX11TAB include auxiliary contacts?

DigiKey lists GX11TAB with auxiliary contacts and hermetically sealed construction. Designers should confirm the exact auxiliary wiring against the datasheet before production use.

How is GX11TAB different from GX16CE?

GX11TAB is a 150A compact GX11 contactor, while GX16CE is a 600A GX16 contactor for heavier DC power paths. Both are High Voltage DC Contactor options, but they target different current classes.

Conclusion

GX11TAB is a compact 150A 800VDC High Voltage DC Contactor for battery modules, converter interfaces, charger support circuits, and monitored DC branch switching. With its Sensata Gigavac GX11 sealed construction, 24VDC low-power internal coil, stud terminals, flying leads, chassis mounting, and auxiliary contact functionality, it is a practical choice for OEM systems that need reliable 800VDC switching in a moderate-current package.