Sensata Gigavac GV241QAX DC Contactor Overview

The Sensata Gigavac GV241QAX is a sealed hermetic DC contactor from the GV24 Series, designed for 400A current switching in 800VDC nominal power systems. It uses a 48VDC external PWM coil configuration, chassis mounting, stud and wire lead termination, and no auxiliary contact. This model is suitable for EV battery systems, battery energy storage equipment, industrial DC power cabinets, marine power control, charging systems, and OEM high-voltage battery disconnect modules. In this model, 800VDC refers to the main contact switching voltage, while 48VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac GV241QAX DC contactor is designed for reliable high-voltage DC switching in battery and power control systems. As part of the GV24 Series, this model provides a 400A contact current rating and 800VDC nominal switching voltage. It is a practical choice for electric vehicles, energy storage systems, charging equipment, industrial DC cabinets, marine battery systems, and high-voltage power distribution modules.

The GV241QAX uses an SPST-NO main contact arrangement, also described as 1 Form X. The main contact remains open when the coil is not energized and closes when the 48VDC coil receives the correct control signal. This allows a lower-voltage control circuit to manage a high-voltage DC load circuit. The 800VDC value belongs to the main power switching path, while the 48VDC value belongs only to the coil control circuit.

A key feature of the Sensata Gigavac GV241QAX is its external PWM coil configuration. The Q coil code indicates a 48VDC external PWM version, meaning the customer system must provide a suitable external economizer or PWM coil drive. This can help reduce holding power after pickup, but the control circuit must be designed correctly. Buyers should confirm the coil drive method before replacing a standard internally suppressed coil version.

The GV241QAX also uses sealed hermetic construction. The sealed body helps protect the internal contact system from dust, moisture, oxidation, and harsh operating environments. This makes the GV241QAX suitable for vehicle platforms, outdoor energy systems, industrial cabinets, and mobile equipment where vibration, humidity, and contamination can reduce the service life of ordinary open-frame contactors.

This version uses stud and wire lead termination for harness-based installation. Compared with PC pin versions, the wire lead configuration is useful when the contactor needs to be connected into a vehicle harness, control box, or high-voltage power distribution assembly. The X suffix indicates that GV241QAX does not include an auxiliary contact, so it is best suited for systems where auxiliary feedback is not required or where contactor status is monitored by another method.

Key Features

• Genuine Sensata Gigavac GV24 Series DC contactor
• 400A contact rating for high-current DC power control
• 800VDC nominal switching voltage for high-voltage battery systems
• 48VDC external PWM coil configuration
• SPST-NO main contact form for normally open switching
• No auxiliary contact for simplified circuit designs
• Hermetically sealed construction for harsh environments
• Stud and wire lead termination for harness-based installation
• 20 ms operate time and 12 ms release time
• Wide operating temperature range from -55°C to 85°C

Applications

The GV241QAX DC contactor is suitable for high-voltage DC systems that need dependable connection and disconnection of battery, load, or charging circuits. Typical applications include EV battery packs, electric forklifts, AGV systems, battery management systems, DC charging equipment, renewable energy storage, UPS battery cabinets, marine electric propulsion, and industrial DC distribution.

In battery systems, the Sensata Gigavac GV241QAX can be used as a main positive contactor, main negative contactor, charge path contactor, load disconnect contactor, or safety isolation device depending on the system design. Its 400A current rating and 800VDC switching voltage make it suitable for high-voltage platforms where compact size, sealed protection, and stable switching performance are required.

Why Choose Sensata Gigavac GV241QAX

The Sensata Gigavac GV241QAX is a strong option when the system requires 400A current capacity, 800VDC switching voltage, 48VDC external PWM coil operation, sealed construction, wire lead termination, and no auxiliary contact. 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 structure helps improve reliability in outdoor, mobile, and vibration-prone environments.

For replacement and maintenance projects, GV241QAX should be selected when the original system requires GV24 Series performance with 400A contact rating, 800VDC nominal switching voltage, 48VDC external PWM coil voltage, stud and wire lead termination, and no auxiliary contact. Before ordering, confirm the external PWM coil drive, mounting style, auxiliary contact requirement, terminal type, load current, and system voltage.

FAQ

Q1: What is the full product name of GV241QAX?
A1: The full product name is Sensata Gigavac GV241QAX DC Contactor.

Q2: What is the main switching voltage?
A2: The main switching voltage is 800VDC nominal.

Q3: What does 48VDC mean?
A3: 48VDC is the coil voltage used to operate the contactor, not the main load voltage.

Q4: What is special about the Q coil code?
A4: The Q code indicates a 48VDC external PWM coil version, so the customer system must provide a suitable external economizer or PWM drive.

Q5: Does GV241QAX include an auxiliary contact?
A5: No. The X suffix indicates no auxiliary contact.

Q6: What is the difference between GV241QAX and GV244QPX?
A6: GV241QAX uses stud and wire lead termination, while GV244QPX uses PC pin termination.