Sensata Gigavac SGX151BXX

Sensata Gigavac SGX151BXX is an SGX15 series High Voltage DC Contactor for compact EV battery systems, small energy storage packs, charger interfaces, and high-voltage auxiliary circuits. This High Voltage DC Contactor provides a 150A current rating, 750VDC rated switching voltage according to Sensata SGX151 drawing data, 12VDC coil control, SPST-NO contact arrangement, chassis mounting, and sealed construction. For designers who need a compact High Voltage DC Contactor with 12V control, SGX151BXX is a practical choice.

The SGX151BXX High Voltage DC Contactor is designed for systems where the current requirement is moderate but the DC voltage is high enough to require a proper sealed contactor. It is not a large main contactor for 400A or 600A traction paths. Instead, this High Voltage DC Contactor fits compact battery modules, auxiliary inverter branches, EV service circuits, charger outputs, and small DC distribution assemblies.

Product Positioning

SGX151BXX is positioned as a compact 12V coil High Voltage DC Contactor for EV and battery support circuits. Its 150A class makes it suitable for smaller high-voltage branches where a larger GX or GTM High Voltage DC Contactor would take unnecessary space. The 12VDC coil supports platforms that use a 12V auxiliary battery or 12V control electronics.

The application angle for SGX151BXX is compact vehicle power switching. A High Voltage DC Contactor in this role may connect a small battery pack, enable an auxiliary inverter, isolate a service branch, or control a charger path. The sealed ceramic-to-metal technology used in the SGX family supports reliable switching in a compact footprint.

Key Specifications

• Model: SGX151BXX
• Brand: Sensata-Gigavac
• Series: SGX15 / SGX150 family
• Product type: High Voltage DC Contactor
• Current rating: 150A High Voltage DC Contactor class
• Rated switching voltage: 750VDC High Voltage DC Contactor class by Sensata drawing data
• Distributor description: 1000V / 150A contactor wording appears in some listings
• Coil voltage: 12VDC coil for High Voltage DC Contactor control
• Contact arrangement: SPST-NO / 1 Form A
• Mounting type: chassis mount
• Construction: sealed ceramic High Voltage DC Contactor design
• Typical role: compact EV battery contactor, auxiliary inverter contactor, charger branch contactor

Features and Benefits

The first benefit of SGX151BXX is compact high-voltage switching. A 150A High Voltage DC Contactor can serve battery support circuits without using a larger and heavier contactor. This helps reduce cabinet space and wiring complexity in compact vehicles, portable battery packs, and small high-voltage systems.

The second benefit is 12V coil compatibility. Many EV support systems, service modules, and compact battery platforms already use 12V auxiliary power. A 12V coil High Voltage DC Contactor can be integrated into those systems without adding a separate 24V coil supply. This makes the SGX151BXX High Voltage DC Contactor convenient for vehicle-oriented control designs.

The third benefit is sealed construction. A High Voltage DC Contactor may be installed near battery modules, power electronics, vents, cable entries, or service panels. Sealed construction helps protect the contact area from dust and contamination. In compact applications, the High Voltage DC Contactor benefits from this protection because available enclosure space is often limited.

The fourth benefit is clear SPST-NO operation. The High Voltage DC Contactor stays open until the coil is energized, supporting controlled startup, shutdown, and service isolation. This is important in battery systems where the controller must determine when the high-voltage path is allowed to close.

Applications

SGX151BXX is suitable for compact EV and battery systems that require a High Voltage DC Contactor with 12V control. It can switch an auxiliary inverter, isolate a charger branch, control a DC service circuit, or enable a small high-voltage battery output. The High Voltage DC Contactor can also be used in portable ESS modules, small DC UPS equipment, and battery test fixtures.

In charger support equipment, the SGX151BXX High Voltage DC Contactor can be used for moderate-current output switching or internal DC branch isolation. In vehicle systems, it can support controlled connection of auxiliary high-voltage loads. The High Voltage DC Contactor should be selected according to voltage, current, inrush profile, duty cycle, coil supply, and protection design.

Selection Guide

Select SGX151BXX when the project needs a compact 150A High Voltage DC Contactor with 12VDC coil control and SPST-NO operation. If the controller uses 24VDC, SGX151CXX is the matching High Voltage DC Contactor direction. If the application needs higher current, review GX, GV, HX, or GTM models.

FAQ

Is SGX151BXX a High Voltage DC Contactor?

Yes. SGX151BXX is an SGX15 High Voltage DC Contactor for compact 150A high-voltage DC switching.

What coil voltage does this High Voltage DC Contactor use?

This High Voltage DC Contactor uses a 12VDC coil.

What voltage should be listed for SGX151BXX?

Sensata drawing data lists 750VDC rated switching voltage, while some distributor text uses 1000V / 150A wording. For backend copy, 750VDC is the safer engineering wording.

Where is this High Voltage DC Contactor used?

It is used in compact EV systems, auxiliary inverter paths, charger branches, small battery modules, and service isolation circuits.

Conclusion

Sensata Gigavac SGX151BXX is a compact 150A High Voltage DC Contactor with 750VDC rated switching voltage, 12VDC coil control, SPST-NO contact form, chassis mounting, and sealed construction. It is a practical High Voltage DC Contactor for compact EV power systems, battery support circuits, charger interfaces, and high-voltage auxiliary branches that need reliable 12V-controlled switching.