Sensata Gigavac GV244CPX
The Sensata Gigavac GV244CPX is a GV24 Series hermetically sealed DC power contactor designed for high-current switching in electric vehicles, battery packs, charging systems, energy storage equipment, and industrial DC power systems. This model is configured with a 400 A current rating, 800VDC rated switching voltage, a 24VDC coil, PCB pin termination, PCB M8 mounting, an SPST-NO main contact, and no auxiliary contact. The 800VDC value refers to the main power/load circuit, while the 24VDC value refers to the coil/control circuit used to operate the contactor.
| Category |
Relays - Contactors, Electromechanical |
| Manufacturer |
Sensata-Gigavac Clean Energy |
| Manufacturer Product Number |
GV244CPX |
| Series |
GV24 |
| Product Type |
Hermetically Sealed DC Power Contactor |
| Mounting Type |
PCB Mount, M8 Power Connection |
| Coil Voltage |
24VDC |
| Contact Form |
SPST-NO, 1 Form X Main Contact |
| Contact Rating Current |
400 A |
| Switching Voltage |
800VDC Rated |
| Termination Style |
PCB Pins |
| Power Terminals |
M8x1.25 Bolt Connection |
| Auxiliary Contact |
None |
| Operating Temperature |
-55°C to +85°C |
| Must Operate Voltage |
16 VDC |
| Must Release Voltage |
2 VDC |
| Operate Time |
20 ms Max |
| Release Time |
12 ms Max |
| Coil Current |
97 mA |
| Coil Power |
2.3 W |
| Coil Resistance |
247.42 Ohms |
| Short Circuit Current |
4000 A for 20 ms |
| Max Break Current |
3000 A at 400V for 1 cycle; 900 A at 800V for 1 cycle |
| Environmental Seal |
Hermetically Sealed, Exceeds IP67 and IP69K |
| Typical Weight |
Approx. 0.38 kg / 0.84 lb for PCB mount version |
Product Description
The Sensata Gigavac GV244CPX is a compact 400 A DC contactor for high-voltage battery and power switching systems. As part of the GV24 Series, it is designed for 800VDC class applications where reliable isolation, low coil power, sealed construction, and compact OEM assembly are important. The PCB mount format makes GV244CPX especially useful for integrated power modules, battery disconnect assemblies, charging equipment, and control boards that need a direct board-level contactor interface.
GV244CPX uses a normally open main contact. In the de-energized state, the main power path is open and the load is isolated. When the 24VDC coil is energized, the contactor closes and current flows through the main power terminals. When coil power is removed, the main contact opens again. This behavior makes GV244CPX suitable for main positive contactors, main negative contactors, charge path switching, discharge path switching, inverter input control, DC bus connection, and high-voltage load isolation.
The complete model number should be used in backend records and product listings. “GV24” identifies the 400 A, 800VDC contactor family. The “4” indicates the PCB M8 mounting style. The “C” indicates the 24VDC coil version with internal coil suppression. The “P” indicates PCB pins. The final “X” indicates no auxiliary contact. This is important because similar GV24 models may use flying leads, different coil voltages, PWM coil options, or normally open or normally closed auxiliary contacts.
Key Features
- 400 A current rating for demanding high-voltage DC systems.
- 800VDC rated switching voltage for EV, ESS, charging, and industrial power applications.
- 24VDC coil for common battery management and industrial control architectures.
- SPST-NO main contact for controlled power connection and isolation.
- PCB pin termination for compact OEM board-level integration.
- No auxiliary contact, suitable for systems that monitor contactor state externally.
- Hermetically sealed construction for harsh operating environments.
- Built-in coil suppression for simplified control circuit design.
- PCB mountable option helps reduce external cables, wires, and connectors.
- Can be mounted in any position and exceeds IP67 and IP69K sealing requirements.
Applications
The Sensata Gigavac GV244CPX is commonly used in electric vehicles, hybrid vehicles, energy storage systems, battery packs, DC charging systems, power conversion cabinets, industrial DC buses, test equipment, material handling equipment, and renewable energy power systems. Its 400 A rating makes it suitable for high-current circuits where smaller 150 A or 200 A contactors are not enough, while its compact PCB mount format supports cleaner packaging in OEM assemblies.
Because GV244CPX has no auxiliary contact, it is best suited for systems that do not require built-in auxiliary feedback or that use another sensing method to confirm contactor state. If the control system needs a direct auxiliary signal, a GV24 variant ending in B or C should be reviewed instead. The X suffix should be kept in the listing to make the no-auxiliary configuration clear.
Design Notes
The 800VDC and 24VDC values describe separate electrical circuits. The 800VDC rating applies to the main contact/load circuit and describes the high-voltage DC circuit the contactor is designed to switch. The 24VDC rating applies to the coil/control circuit that actuates the contactor. A system can use a 24V controller output to operate the coil while the main terminals switch a much higher DC bus.
GV244CPX uses a dual-coil design with internal coil suppression. Both coils are used during pickup, and then the contactor transitions to low continuous hold power. Coil drive should follow the product requirements, and pickup voltage should be applied properly during testing rather than slowly ramped from zero. External diodes across the coil should not be added without reviewing release-time and switching-performance effects.
For capacitive loads such as inverter inputs, DC link capacitors, chargers, and battery power electronics, a pre-charge circuit is normally required before closing the main contactor. Pre-charge limits inrush current and helps protect the contactor contacts, fuses, busbars, PCB copper, cables, and connected equipment. Final design should also verify terminal torque, board layout, creepage and clearance, thermal rise, current direction, enclosure protection, and fault current behavior.
Why Choose Sensata Gigavac GV244CPX
GV244CPX is a strong choice when a system needs a sealed 400 A, 800VDC contactor with 24V control and PCB pin integration. Compared with flying-lead GV24 versions, the PCB pin version can simplify OEM assembly and reduce harness complexity. Compared with auxiliary-contact versions, the no-auxiliary configuration is simpler when the system already has another method for contactor diagnostics or does not require position feedback.
For backend product listings, write the full name as Sensata Gigavac GV244CPX. Avoid shortening it to GV24 or GV244, because related models may use 12VDC or 48VDC coils, flying leads, PWM coil options, or auxiliary contacts. GV244CPX specifically identifies the PCB M8 mount, 24VDC coil, PCB pin termination, no-auxiliary version.
FAQ
Is GV244CPX an 800V or 24V contactor?
It uses both values for different circuits. The main contacts switch DC loads at 800VDC class voltage, while the coil/control circuit is 24VDC.
What is the current rating of GV244CPX?
GV244CPX is rated for 400 A continuous current.
Does GV244CPX include an auxiliary contact?
No. The final X in GV244CPX indicates no auxiliary contact.
What does the P mean in GV244CPX?
The P indicates PCB pin termination. In this model, the 4 mounting code also identifies the PCB M8 mount configuration.
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