Sensata Gigavac GV251BPX DC Contactor Overview

The Sensata Gigavac GV251BPX is a sealed hermetic DC contactor from the GV250 Series, designed for high-voltage DC switching applications that require 250A current capacity and 1000VDC nominal switching voltage. It uses a 12VDC control coil and PC pin termination, making it suitable for EV battery systems, energy storage equipment, industrial DC power cabinets, marine power control, charging systems, and OEM battery disconnect modules. In this model, 1000VDC refers to the main contact switching voltage, while 12VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac GV251BPX DC contactor is built for reliable high-voltage DC power switching in compact and demanding electrical systems. As a GV250 Series contactor, it provides a 250A contact current rating and 1000VDC nominal switching capability, making it a practical choice for battery-powered equipment, EV power distribution, renewable energy storage, industrial automation, and DC safety disconnect circuits.

The GV251BPX uses an SPST-NO contact arrangement, also known as 1 Form X. The main contact remains open when the coil is not energized and closes when the 12VDC coil receives the correct control voltage. This design is commonly used for main battery contactors, charge path contactors, load disconnect contactors, and safety isolation circuits. The contactor separates the low-voltage control circuit from the high-voltage DC power circuit, helping system designers manage high-current switching with a simple 12V control signal.

A major advantage of the Sensata Gigavac GV251BPX is its sealed hermetic construction. The sealed body helps protect the internal contact system from dust, humidity, oxidation, and harsh environmental exposure. This is important for electric vehicles, mobile machinery, outdoor power systems, marine battery equipment, and industrial DC cabinets where vibration, moisture, and contamination may affect ordinary open-frame contactors.

Key Features

• Genuine Sensata Gigavac GV250 Series DC contactor
• 250A contact rating for high-current DC power control
• 1000VDC nominal switching voltage for high-voltage battery systems
• 12VDC coil for low-voltage control circuit operation
• SPST-NO contact form for normally open switching
• Sealed hermetic construction for harsh environments
• PC pin termination for OEM integration
• 20 ms operate time and 12 ms release time
• Wide operating temperature range from -55°C to 85°C

Applications

The GV251BPX DC contactor is suitable for high-voltage DC systems where reliable connection and disconnection are required. Typical applications include EV battery packs, electric forklifts, AGV power modules, charging equipment, battery energy storage systems, UPS battery cabinets, marine electric propulsion systems, solar and wind power equipment, and industrial DC power distribution.

In a battery system, the Sensata Gigavac GV251BPX can be used as a main positive contactor, main negative contactor, charge contactor, load contactor, or emergency disconnect device depending on the electrical design. Its 1000VDC nominal switching voltage makes it suitable for higher voltage platforms, while the 12VDC coil allows the contactor to be controlled by common vehicle and equipment control circuits.

Why Choose Sensata Gigavac GV251BPX

The Sensata Gigavac GV251BPX is a strong choice when the system requires 250A current capacity, 1000VDC switching voltage, 12VDC coil operation, sealed protection, and PC pin termination. Compared with lower-voltage contactors, this model is better matched to high-voltage battery and DC bus systems. Compared with non-sealed contactors, the hermetic construction helps improve reliability in outdoor, mobile, and vibration-prone environments.

For OEM manufacturers, the PC pin termination can support compact control layouts and reduce wiring complexity. For maintenance and replacement projects, GV251BPX should be selected when the original part number or system specification requires GV250 Series performance with 250A contact rating, 1000VDC nominal switching voltage, 12VDC coil voltage, PC pins, and no auxiliary contact option.

FAQ

Q1: What is the full product name of GV251BPX?
A1: The full product name is Sensata Gigavac GV251BPX DC Contactor.

Q2: What is the main switching voltage?
A2: The main switching voltage is 1000VDC nominal.

Q3: What does the 12VDC specification mean?
A3: 12VDC is the coil voltage used to operate the contactor, not the main load voltage.

Q4: What is the current rating?
A4: The contact rating current is 250A.

Q5: Does GV251BPX include auxiliary contacts?
A5: No. This configuration does not include auxiliary contacts.

Q6: What type of termination does it use?
A6: The GV251BPX uses PC pins.