Sensata Gigavac GV244QPX

Sensata Gigavac GV244QPX is a 400A 800VDC High Voltage DC Contactor from the GV24 series, designed for high-current DC switching in mobile equipment, battery-powered platforms, industrial vehicles, and compact power-control assemblies. This High Voltage DC Contactor uses an SPST-NO main contact arrangement, a 48VDC coil, PCB M8 mounting, PC pin termination, no auxiliary contact, and sealed construction. For OEM systems that need a rugged High Voltage DC Contactor with a 48V control architecture, GV244QPX provides a practical solution for controlled connection and isolation of DC power paths.

As a GV24 series High Voltage DC Contactor, GV244QPX is built for 800VDC-class applications where current capacity, compact installation, and environmental protection are important. The 400A current rating supports demanding DC circuits in electric utility vehicles, lift equipment, service vehicles, mobile energy systems, and battery-powered industrial machines. Its sealed construction helps protect the internal contact system from moisture, dust, vibration, and contamination that may be present in mobile or semi-exposed operating environments.

Product Positioning

GV244QPX is positioned as a High Voltage DC Contactor for mobile equipment and 48V-controlled power systems that require 400A current capacity and 800VDC nominal switching capability. Compared with 12/24V external PWM versions, this model is better matched to platforms that already use a 48VDC control supply. Compared with auxiliary-contact versions, GV244QPX is a simpler no-auxiliary-contact configuration for equipment where contactor status feedback is handled by another sensor, controller, or system-level diagnostic method.

This High Voltage DC Contactor is suitable for main battery isolation, inverter input control, DC bus switching, service disconnect circuits, and protected power branch control. In mobile equipment, a reliable contactor is often required for start-up sequencing, emergency shutdown, battery isolation, and load control. GV244QPX supports these functions when the application voltage, current, and switching duty are within specification.

Key Specifications

• Manufacturer series: Sensata Gigavac GV24
• Part number: GV244QPX
• Product type: High Voltage DC Contactor
• Contact arrangement: SPST-NO, normally open
• Rated current: 400A
• Nominal switching voltage: 800VDC
• Coil voltage: 48VDC
• Mounting style: PCB M8 mounting
• Termination style: PC pins / PCB pins
• Auxiliary contacts: none
• Construction: hermetically sealed GV series design
• Operating temperature range: -55°C to +85°C

Features and Benefits

The main benefit of GV244QPX is its combination of high current capacity, 800VDC voltage support, and compact PCB-oriented installation. As a 400A High Voltage DC Contactor, it can be used in demanding power paths where a small signal relay or lower-current contactor would not be sufficient. The normally open contact arrangement keeps the power circuit open until the coil is energized, which is important for controlled start-up, shutdown, fault isolation, and maintenance procedures.

The 48VDC coil makes this High Voltage DC Contactor especially useful for mobile equipment that already uses a 48V auxiliary or control system. A 48V control architecture can reduce control current compared with lower-voltage coil systems, which may help in equipment with longer harnesses or distributed control modules. For OEMs building compact battery-powered machinery, the 48VDC coil configuration can simplify integration with existing vehicle or equipment control power.

GV244QPX uses PC pin termination and PCB M8 mounting, supporting cleaner assembly in board-based power-control modules. This configuration can help reduce wiring complexity, improve repeatability in production, and support compact packaging. The no-auxiliary-contact configuration is suitable when a basic High Voltage DC Contactor is required and feedback contacts are not part of the design requirement.

The sealed construction helps protect the contact system from environmental stress. Mobile equipment may face vibration, humidity, dust, temperature changes, and repeated duty cycles. A sealed High Voltage DC Contactor such as GV244QPX helps maintain more stable performance in these operating conditions, making it appropriate for rugged power-control systems.

Applications

GV244QPX is especially suitable for mobile equipment, which is the recommended application focus for this model. In electric utility vehicles, lift trucks, material-handling equipment, off-road platforms, and mobile power units, this High Voltage DC Contactor can be used to isolate the battery pack, connect an inverter input, control a DC bus, or disconnect high-current power branches during service and fault events.

This High Voltage DC Contactor can also be used in battery-powered industrial machinery, compact energy storage units, charging support systems, DC distribution assemblies, and auxiliary power modules. In these applications, GV244QPX supports controlled energization and isolation of high-current DC circuits. The 400A rating and 800VDC capability make it suitable for power systems that require stronger switching performance than lower-voltage contactors can provide.

Selection Guide

Before selecting GV244QPX, confirm the system voltage, continuous current, peak current, inrush current, and switching duty. This High Voltage DC Contactor is intended for 800VDC-class systems and 400A current paths, but the final application must still account for load type, DC arc behavior, cable or busbar sizing, thermal rise, creepage and clearance, and protective device coordination. Battery packs, inverter inputs, and capacitive DC links often require precharge circuits before the main contactor closes.

The coil supply should also be reviewed. GV244QPX uses a 48VDC coil, so it should be selected for systems with a stable 48V control source. If the control system uses 12VDC, 24VDC, or an external PWM economizer strategy, another GV24 configuration may be more suitable. If the design requires contact status feedback, choose a related GV24 model with auxiliary contacts, because GV244QPX is listed as a no-auxiliary-contact version.

FAQ

Is GV244QPX normally open?

Yes. GV244QPX is an SPST-NO High Voltage DC Contactor, so the main contacts remain open until the 48VDC coil is energized.

What current and voltage does GV244QPX support?

GV244QPX is a 400A High Voltage DC Contactor with an 800VDC nominal switching voltage rating in the Sensata Gigavac GV24 series.

Does GV244QPX include auxiliary contacts?

No. GV244QPX is listed as a no-auxiliary-contact configuration. If feedback is required, select a GV24 variant with an auxiliary contact option.

What termination style does GV244QPX use?

GV244QPX uses PC pin or PCB pin termination with PCB M8 mounting, making it suitable for board-supported OEM power-control assemblies.

Where is GV244QPX commonly used?

This High Voltage DC Contactor is commonly used in mobile equipment, battery-powered machinery, DC bus control, inverter input isolation, and high-current power distribution systems.

Conclusion

GV244QPX is a 400A 800VDC High Voltage DC Contactor designed for mobile equipment and compact high-current DC power systems. With its Sensata Gigavac GV24 sealed construction, SPST-NO contact arrangement, 48VDC coil, PCB M8 mounting, PC pin termination, and no-auxiliary-contact configuration, it is a practical option for OEM systems that need reliable DC isolation without extra feedback contacts. For mobile platforms, industrial vehicles, battery systems, and protected DC power assemblies, GV244QPX offers a focused High Voltage DC Contactor configuration with strong current capacity and rugged sealed performance.