Sensata Gigavac GV141FAX

Sensata Gigavac GV141FAX is a compact GV14 series High Voltage DC Contactor built for controlled switching in 100VDC power systems that require a 400A continuous current class and a 48VDC coil interface. This High Voltage DC Contactor is designed for equipment builders who need reliable main power isolation without using an oversized contactor package. With stud power terminals, flying lead coil termination, chassis mounting, and hermetically sealed construction, GV141FAX is suitable for DC service cabinets, battery disconnect panels, industrial power modules, and low-voltage energy storage equipment.

Unlike open-frame switching devices, this High Voltage DC Contactor is sealed against dust, moisture, and environmental contamination. That sealed design helps the GV141FAX maintain switching consistency in equipment that may be exposed to vibration, temperature variation, service-door opening, or field maintenance conditions. The 48VDC coil makes this High Voltage DC Contactor a practical match for control systems that already use 48V auxiliary power, including distributed DC cabinets, telecom backup systems, battery rooms, mobile service platforms, and utility power enclosures.

Product Positioning

GV141FAX is positioned as a High Voltage DC Contactor for 100VDC-class equipment where 400A current handling is required but the control architecture is based on 48VDC. It fits projects that need a stronger switching component than a light relay, while still keeping the design compact and easy to mount. For OEM engineers, this High Voltage DC Contactor provides a clean balance of current capacity, sealed construction, and straightforward wiring.

The main application angle for GV141FAX is outdoor or semi-protected DC service disconnect equipment. In these systems, the High Voltage DC Contactor may be used to isolate a battery string, disconnect a DC bus, or control a maintenance service path. Because it uses flying leads for the coil connection, GV141FAX can be routed into existing harnesses without requiring a board-mounted coil connector. This makes the High Voltage DC Contactor convenient for cabinet builders, retrofit projects, and field-serviceable power modules.

Key Specifications

• Model: GV141FAX
• Brand: Sensata-Gigavac
• Series: GV14
• Product type: High Voltage DC Contactor
• Contact form: SPST-NO, double make, 1 Form X
• Continuous current rating: 400A
• Nominal switching voltage: 100VDC
• Coil voltage: 48VDC
• Coil type: dual DC coil configuration
• Coil current reference: about 42mA according to distributor data
• Termination style: stud power terminals and flying lead coil wires
• Mounting type: chassis mount
• Construction: hermetically sealed contactor body
• Operating temperature reference: -55°C to 85°C according to distributor data
• Typical use: DC service panels, battery disconnects, backup power cabinets, and industrial DC control assemblies

Features and Benefits

The core advantage of GV141FAX is its ability to provide controlled 400A DC switching in a sealed High Voltage DC Contactor package. The hermetically sealed construction helps protect the contact chamber from external contamination, which is important in cabinets installed near battery banks, equipment rooms, outdoor service structures, or mobile platforms. A sealed High Voltage DC Contactor also reduces the risk of performance changes caused by dust or humidity entering the switching area.

The 48VDC coil is another important benefit. Many battery cabinets, telecom systems, and industrial control panels use 48V control power, so GV141FAX can integrate into those control schemes with fewer conversion steps. For equipment designers, using a High Voltage DC Contactor with a matching coil voltage can simplify wiring diagrams, reduce auxiliary hardware, and make service documentation easier to follow.

Stud terminals provide a robust current path for busbar or cable lug connections, while the flying lead coil termination gives installers routing flexibility. This combination is useful when the High Voltage DC Contactor must be mounted inside a crowded enclosure. The chassis mount layout also supports repeatable assembly in production cabinets, replacement modules, and service disconnect boxes.

Because GV141FAX is a normally open High Voltage DC Contactor, the circuit remains open until the coil is energized. This behavior is commonly preferred for controlled power-up, emergency isolation, and maintenance safety logic. When paired with the correct fuse, control circuit, and protection design, the High Voltage DC Contactor can support a stable and serviceable DC switching architecture.

Applications

GV141FAX is well suited for outdoor DC service cabinets where the contactor must control the connection between a battery bank and a protected load. In backup power systems, this High Voltage DC Contactor can be used as a main battery output contactor, a load disconnect contactor, or a service isolation device. The 400A rating supports power paths that exceed the capacity of smaller control relays, while the 100VDC class fits many 48V and low-voltage battery architectures.

In telecom and data infrastructure, GV141FAX can be applied in battery backup racks, DC distribution frames, and modular power shelves. A 48VDC coil High Voltage DC Contactor is especially practical in these environments because the control voltage often matches the system’s native auxiliary power. For energy storage and renewable support cabinets, GV141FAX can help isolate battery modules, service loops, DC charge controllers, or auxiliary inverter branches.

Industrial users may apply this High Voltage DC Contactor in test stands, process equipment, charger output control, utility vehicles, material-handling equipment, and low-voltage DC distribution panels. It is also useful in mobile equipment where space is limited but high current switching is still required. In each case, the High Voltage DC Contactor should be selected with attention to current, voltage, duty cycle, coil supply, thermal environment, and fault protection.

Selection Guide

Select GV141FAX when the design needs a 400A High Voltage DC Contactor for a 100VDC nominal switching class and the control system provides 48VDC coil power. If the application uses 12V or 24V control power, another GV14 variant may be a better match. If the system requires a higher switching voltage, a different Sensata-Gigavac family such as GX, HX, or other GV series models may be required.

For installation planning, confirm the cable size, lug clearance, mounting orientation, enclosure airflow, and service access around the High Voltage DC Contactor. The contactor should be coordinated with suitable fusing, precharge design where required, arc energy limits, and system-level safety controls. If feedback monitoring is required, confirm whether the selected part number includes auxiliary contacts; GV141FAX distributor listings emphasize the main SPST-NO contact configuration and do not list auxiliary feedback as a primary feature.

FAQ

Is GV141FAX a High Voltage DC Contactor?

Yes. GV141FAX is a Sensata-Gigavac GV14 series High Voltage DC Contactor rated for 400A current and 100VDC nominal switching service.

What coil voltage does GV141FAX use?

GV141FAX uses a 48VDC coil. This makes the High Voltage DC Contactor suitable for battery cabinets, telecom equipment, and industrial panels that already use 48V control power.

Does GV141FAX use flying leads?

Yes. Distributor data lists GV141FAX with stud power terminals and wire lead coil termination. The flying leads help simplify harness routing inside DC service cabinets.

Where is GV141FAX commonly used?

This High Voltage DC Contactor is commonly selected for DC service disconnects, battery output control, backup power systems, industrial DC panels, renewable energy support equipment, and mobile power units.

What should be checked before replacing another contactor with GV141FAX?

Check current rating, switching voltage, coil voltage, mounting space, terminal layout, control logic, thermal conditions, and whether the original design needs auxiliary contact feedback.

Conclusion

Sensata Gigavac GV141FAX is a 400A, 100VDC High Voltage DC Contactor with a 48VDC coil, SPST-NO contact structure, stud terminals, flying leads, chassis mounting, and sealed construction. It is a strong option for DC service cabinets, battery disconnect systems, telecom backup power, and industrial low-voltage DC distribution where reliable sealed switching is required. For OEMs and maintenance teams that need a compact High Voltage DC Contactor with practical wiring and 48V control compatibility, GV141FAX provides a dependable choice within the GV14 product family.