Sensata Gigavac GX16CEC DC Contactor

The Sensata Gigavac GX16CEC is a sealed hermetic DC contactor from the GX16 Series, designed for high-current switching in power systems up to 800VDC. It provides a 600A contact rating, 24VDC internal coil operation, chassis mounting, connector and stud termination, and a normally closed auxiliary contact. This model is suitable for electric vehicles, battery energy storage systems, industrial DC power distribution, marine power control, solar equipment, heavy-duty battery systems, and OEM battery disconnect modules. In this model, 800VDC refers to the main contact switching voltage, while 24VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac GX16CEC DC contactor is designed for reliable high-current switching in demanding DC power systems. As part of the GX16 Series, this model supports a 600A contact current rating and up to 800VDC maximum switching voltage. It is commonly used in EV battery systems, energy storage equipment, power management systems, industrial DC cabinets, marine electrical systems, solar power equipment, and battery disconnect applications.

The GX16CEC 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 24VDC coil receives the correct control voltage. This allows a low-voltage control circuit to manage a high-current DC power path. The 800VDC value belongs to the main switching circuit, while the 24VDC value belongs only to the coil control circuit.

A key advantage of the Sensata Gigavac GX16CEC is its hermetically sealed construction. The sealed contact chamber helps protect the internal contact system from dust, moisture, oxidation, and contaminated environments. This makes the GX16CEC suitable for harsh operating conditions, including mobile equipment, outdoor systems, battery packs, and industrial power assemblies where open-frame contactors may have reduced service life.

The GX16 Series uses a dual coil design. Both coils are used during pickup, and then one coil is electronically removed from the coil drive circuit after pickup. The remaining coil supplies lower continuous hold power. This design helps reduce coil power without requiring external PWM electronics, which can simplify control design and reduce EMI concerns in sensitive systems.

The GX16CEC also includes a normally closed auxiliary contact. This auxiliary contact can provide contactor status feedback to a controller, battery management system, or safety circuit. Compared with GX16CE, which has no auxiliary contact, GX16CEC is better suited for systems that need status confirmation, diagnostics, or interlock logic with normally closed auxiliary feedback. Compared with GX16CEB, the GX16CEC uses normally closed auxiliary logic instead of normally open auxiliary logic.

Key Features

• Genuine Sensata Gigavac GX16 Series DC contactor
• 600A contact rating for high-current DC power control
• 800VDC maximum switching voltage for high-voltage systems
• 24VDC internal dual coil for control circuit operation
• SPST-NO main contact form for normally open switching
• SPST normally closed auxiliary contact for feedback or interlock use
• Hermetically sealed construction for harsh environments
• Connector and stud termination for secure installation
• 20 ms operate time and 7 ms release time
• Suitable for EV, ESS, solar, marine, and industrial DC systems

Applications

The GX16CEC DC contactor is suitable for systems that need reliable connection and disconnection of high-current DC battery, load, or charging circuits. Typical applications include electric vehicles, battery energy storage systems, solar power equipment, DC power cabinets, marine battery systems, UPS battery modules, material handling equipment, and industrial automation systems.

In a battery system, the Sensata Gigavac GX16CEC can be used as a main contactor, charge contactor, load disconnect contactor, or safety isolation device depending on the electrical design. Its 600A current rating makes it a strong fit for high-current DC platforms where sealed construction, auxiliary feedback, compact mounting, and stable switching performance are required.

Why Choose Sensata Gigavac GX16CEC

The Sensata Gigavac GX16CEC is a strong option when the system requires 600A current capacity, up to 800VDC switching voltage, 24VDC coil operation, sealed construction, chassis mounting, connector and stud termination, and a normally closed auxiliary contact. Compared with versions without auxiliary feedback, this model gives the control system an additional status signal for diagnostics or interlock logic.

For replacement and maintenance projects, GX16CEC should be selected when the original system requires GX16 Series performance with 600A contact rating, 800VDC maximum switching voltage, 24VDC coil voltage, chassis mounting, connector control termination, stud power terminals, and normally closed auxiliary contact. Before ordering, confirm coil voltage, auxiliary contact logic, load current, switching voltage, mounting space, and terminal requirements.

FAQ

Q1: What is the full product name of GX16CEC?
A1: The full product name is Sensata Gigavac GX16CEC DC Contactor.

Q2: What is the main switching voltage?
A2: The main switching voltage is up to 800VDC maximum.

Q3: What does 24VDC mean?
A3: 24VDC 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 600A.

Q5: Does GX16CEC include an auxiliary contact?
A5: Yes. GX16CEC includes a normally closed auxiliary contact.

Q6: What is the difference between GX16CEC and GX16CEB?
A6: GX16CEC includes a normally closed auxiliary contact, while GX16CEB includes a normally open auxiliary contact.