Sensata Gigavac GV122BAX

Sensata Gigavac GV122BAX is a 200A 100VDC High Voltage DC Contactor from the GV12 series, designed for service carts, portable DC power equipment, battery maintenance units, and low-voltage high-current switching assemblies that use a 12VDC control supply. This High Voltage DC Contactor uses an SPST-NO-DM main contact form, a 12VDC coil, stud power terminals, flying lead control termination, side or chassis mounting, no auxiliary contact, and hermetically sealed construction. It is a practical choice when the system needs wired installation and side-mount flexibility instead of a PCB-mounted contactor.

GV122BAX is useful in compact equipment where the contactor must be fixed to a panel, bracket, or side wall near the battery cable path. The 200A current rating supports medium-power 100VDC-class circuits, while the 12VDC coil fits service equipment and mobile platforms that already use 12V auxiliary power. The sealed GV12 design helps protect the internal contact system from dust, humidity, and contamination during regular field or workshop operation.

Product Positioning

GV122BAX should be positioned as a side-mount 12V coil High Voltage DC Contactor for portable and service-oriented DC systems. It is different from GV121BAX, which is commonly associated with bottom or upright mounting, and different from GV124BPX, which uses PCB pin termination. GV122BAX is better suited when the design needs stud terminals, flying leads, and chassis-side installation in a wired power bay.

The no-auxiliary-contact configuration is suitable for simpler switching circuits. Some equipment verifies contactor operation through bus voltage, current flow, charger response, or controller command state rather than a separate auxiliary contact. In those applications, this High Voltage DC Contactor provides reliable power switching while keeping the harness simpler and reducing unused feedback wiring.

Key Specifications

• Manufacturer series: Sensata Gigavac GV12
• Part number: GV122BAX
• Product type: High Voltage DC Contactor
• Main contact form: SPST-NO-DM / 1 Form X
• Rated current: 200A
• Nominal switching voltage: 100VDC
• Coil voltage: 12VDC
• Power termination: stud terminals
• Control termination: flying leads / wire leads
• Mounting style: chassis mount / side mounting
• Auxiliary contact: none
• Construction: hermetically sealed
• Operating temperature range: -55°C to +85°C
• Must operate voltage: approximately 8VDC according to distributor data
• Must release voltage: approximately 0.5VDC according to distributor data
• Typical operate time: approximately 20ms
• Typical release time: approximately 12ms

Features and Benefits

The main benefit of GV122BAX is its side-mount wired format. A High Voltage DC Contactor with stud terminals and flying leads can be installed close to battery cables, busbars, or service disconnect hardware without requiring a PCB mounting position. This is valuable in portable service carts, maintenance equipment, charger accessories, and compact DC panels where mechanical layout is limited.

The 12VDC coil makes GV122BAX easy to integrate into equipment that already uses 12V control power. Many service tools, small mobile platforms, auxiliary battery systems, and workshop power units use 12VDC for control switches, indicators, safety circuits, and control boards. Selecting a High Voltage DC Contactor with a matching coil voltage avoids unnecessary control power conversion.

The normally open contact form supports predictable isolation. The power path remains open until the coil is energized, allowing the system to connect the battery, charger path, or load only when the operator or controller commands it. This supports controlled start-up, safe shutdown, maintenance isolation, and fault response.

Hermetically sealed construction improves reliability in real operating environments. Service carts and portable DC systems may face vibration, dust, humidity, and frequent movement between work areas. A sealed High Voltage DC Contactor helps protect the contact chamber and maintain stable switching performance across repeated duty cycles.

Applications

GV122BAX is especially suitable for service carts and portable DC power equipment. In a battery maintenance cart, charger support unit, or field service power module, this High Voltage DC Contactor can isolate a battery output, connect a charger branch, switch a DC load, or open the circuit during service and fault conditions. The 200A rating is useful for medium-current power paths where a small relay is not enough.

The contactor can also be used in compact battery systems, low-voltage DC distribution boxes, industrial control panels, mobile equipment accessories, battery test fixtures, and maintenance disconnect modules. Its 100VDC voltage class keeps it focused on low-voltage high-current systems rather than 800V or 1500V architectures.

Selection Guide

Before selecting GV122BAX, confirm that the application is within the 100VDC and 200A class. Review continuous current, peak current, inrush current, load type, switching frequency, cable sizing, thermal rise, and fuse coordination. Charger inputs, capacitive loads, and motor controller circuits may need precharge or additional protection depending on the full system design.

The coil supply should be a stable 12VDC source. If the equipment uses 24VDC control power, GV122CAX or another 24V GV12 configuration may be more suitable. If direct contact status feedback is required, choose a related GV12 version with auxiliary contact functionality instead of GV122BAX.

Mechanical layout should also be checked. GV122BAX is suited to side or chassis mounting with stud terminals and flying leads, so designers should confirm mounting access, cable bend radius, terminal clearance, lead routing, vibration support, and service access before production approval.

FAQ

What is GV122BAX used for?

GV122BAX is used for service carts, portable DC power equipment, battery maintenance units, compact DC panels, and 100VDC-class medium-current switching.

Is GV122BAX a High Voltage DC Contactor?

Yes. GV122BAX is a Sensata Gigavac GV12 series High Voltage DC Contactor with 200A current rating and 100VDC nominal switching capability.

What coil voltage does GV122BAX use?

GV122BAX uses a 12VDC coil. Distributor data lists approximately 8VDC must-operate voltage and 0.5VDC must-release voltage.

Does GV122BAX include auxiliary contacts?

No. GV122BAX is treated as a no-auxiliary-contact configuration based on checked public distributor listings.

How is GV122BAX different from GV121CAX?

GV122BAX uses a 12VDC coil and side-mount style configuration, while GV121CAX uses a 24VDC coil and is commonly listed as a chassis or upright mount version. Both are GV12 200A contactors with stud terminals and flying leads.

Conclusion

GV122BAX is a 200A 100VDC High Voltage DC Contactor for service carts, portable power equipment, compact battery systems, and wired DC switching assemblies. With its Sensata Gigavac GV12 sealed construction, 12VDC coil, stud terminals, flying leads, side mounting, and no-auxiliary-contact configuration, it is a practical choice for OEM designs that need reliable 100VDC-class switching with simple 12V control wiring.