Sensata Gigavac GV121CAX

Sensata Gigavac GV121CAX is a 200A 100VDC High Voltage DC Contactor from the GV12 series, designed for AGV power systems, service disconnect boxes, compact battery equipment, and low-voltage DC control panels that need flexible flying-lead wiring. This High Voltage DC Contactor uses an SPST-NO-DM main contact form, a 24VDC coil, stud power terminals, 38 cm flying lead control termination, chassis mounting, no auxiliary contact, and hermetically sealed construction. It is a practical configuration for OEM systems that require reliable 100VDC-class switching without built-in contact feedback wiring.

GV121CAX is different from PCB-pin GV12 versions because it uses stud terminals and flying leads. That makes it suitable for equipment where the contactor is mounted inside a battery box, power bay, or service panel rather than directly on a control board. The sealed GV12 design helps protect the contact chamber from dust, moisture, and contamination, supporting stable operation in mobile equipment, warehouse automation, industrial cabinets, and auxiliary DC power modules.

Product Positioning

GV121CAX should be positioned as a 24V coil High Voltage DC Contactor for compact wired power assemblies. It fits systems that need 200A current capacity and 100VDC switching, but do not require the larger 400A GV14 platform or the higher 800VDC GV24 platform. For AGVs, mobile robots, service disconnect panels, compact chargers, and low-voltage battery systems, GV121CAX provides a focused balance of current capacity, sealed construction, and simple control wiring.

The no-auxiliary-contact configuration is useful when contactor state is monitored through system voltage, load current, controller command state, or another diagnostic method. In those designs, a separate auxiliary contact may not be necessary. This High Voltage DC Contactor keeps the wiring simpler while still providing dependable normally open switching for controlled connection and isolation of the DC path.

Key Specifications

• Manufacturer series: Sensata Gigavac GV12
• Part number: GV121CAX
• Product type: High Voltage DC Contactor
• Main contact form: SPST-NO-DM / 1 Form X
• Rated current: 200A
• Nominal switching voltage: 100VDC
• Coil voltage: 24VDC
• Power termination: stud terminals
• Control termination: flying leads / wire leads
• Lead length: 38 cm / 15 in according to distributor listing
• Mounting style: chassis mount / upright mounting
• Auxiliary contact: none
• Construction: hermetically sealed
• Operating temperature range: -55°C to +85°C
• Coil current: approximately 280mA according to distributor data

Features and Benefits

The main advantage of GV121CAX is its wired installation format. A High Voltage DC Contactor with stud terminals and flying leads can be mounted close to the battery cables or busbars while the coil wiring routes back to a controller, harness, or safety switch. This is useful in equipment where board mounting is not practical or where service access is important.

The 24VDC coil matches common industrial and mobile control systems. Many AGVs, warehouse vehicles, compact chargers, and DC control panels already use 24V auxiliary power. Selecting GV121CAX allows designers to use that existing control supply while maintaining a 200A contact rating for the main DC path.

The normally open main contact supports controlled energization. The power circuit remains open until the coil is energized, allowing the system to connect the battery, charger path, or DC load only when the operating sequence is ready. This behavior is useful for start-up control, shutdown routines, maintenance isolation, and fault response.

Hermetically sealed construction helps protect the contactor in real equipment environments. Dust, humidity, vibration, and temperature change are common in mobile robots, battery compartments, warehouse automation equipment, and compact industrial cabinets. A sealed High Voltage DC Contactor helps maintain stable switching performance over long service intervals.

Applications

GV121CAX is especially suitable for AGV and service disconnect systems. In an automated guided vehicle, warehouse robot, or compact mobile platform, this High Voltage DC Contactor can isolate a battery pack, connect a motor controller, switch a charger input, or disconnect an auxiliary DC branch during service. The 200A rating supports medium-power 100VDC-class circuits without requiring a larger high-current package.

The contactor can also be used in battery test fixtures, compact DC distribution panels, industrial control modules, small backup power systems, charger support equipment, and maintenance disconnect boxes. In these applications, GV121CAX provides simple 24V-controlled switching with flexible lead routing and sealed reliability.

Selection Guide

Before selecting GV121CAX, confirm that the circuit is within the 100VDC and 200A class. Review continuous current, peak current, inrush current, switching frequency, load type, and thermal rise. Battery loads, charger inputs, motor controllers, and capacitive circuits can create different switching stresses, so the High Voltage DC Contactor should be evaluated in the complete system.

The coil supply should be a stable 24VDC source. If the equipment uses 12VDC or 48VDC control power, another GV12 coil version may be more suitable. If the design needs direct contact feedback, choose a related GV12 model with auxiliary contacts instead of GV121CAX. Mechanical checks should include stud clearance, cable bend radius, flying lead routing, vibration exposure, and service access.

FAQ

What is GV121CAX used for?

GV121CAX is used for AGV power systems, service disconnect boxes, compact battery equipment, charger interfaces, and 100VDC-class DC switching.

Is GV121CAX a High Voltage DC Contactor?

Yes. GV121CAX is a Sensata Gigavac GV12 series High Voltage DC Contactor with 200A current rating and 100VDC nominal switching capability.

What coil voltage does GV121CAX use?

GV121CAX uses a 24VDC coil, making it suitable for equipment with a 24V auxiliary control supply.

Does GV121CAX include auxiliary contacts?

No. GV121CAX is listed as a no-auxiliary-contact configuration. Select a related GV12 model with auxiliary contacts if feedback is required.

How is GV121CAX different from GV124CPX?

GV121CAX uses stud terminals and flying leads with chassis mounting, while GV124CPX is commonly associated with PCB pin termination. Both are 24V coil GV12 no-auxiliary-contact options.

Conclusion

GV121CAX is a 200A 100VDC High Voltage DC Contactor for AGV systems, service disconnect panels, compact battery equipment, and wired DC power modules. With its Sensata Gigavac GV12 sealed construction, 24VDC coil, stud terminals, 38 cm flying leads, chassis mounting, and no-auxiliary-contact configuration, it is a practical choice for OEM designs that need reliable 100VDC-class switching with flexible installation.