Sensata Gigavac MX110CEB DC Contactor

The Sensata Gigavac MX110CEB is a sealed hermetic DC contactor from the MX110 Series, designed for rugged low-voltage, very high-current DC switching applications. It provides a 1000A contact rating, 48VDC switching voltage, 24VDC coil operation, chassis mounting, stud termination, and a normally open auxiliary contact. This model is suitable for military vehicles, off-road equipment, heavy-duty battery disconnect systems, marine power systems, mining vehicles, industrial DC power distribution, and rugged 12V to 48V DC platforms. In this model, 48VDC refers to the main contact switching voltage, while 24VDC refers to the coil voltage used to operate the contactor.

Product Description

The Sensata Gigavac MX110CEB DC contactor is built for rugged low-voltage, very high-current DC switching applications. As part of the MX110 Series, this model provides a 1000A continuous current rating and is designed for 12V to 48V DC power systems. It is commonly used in military vehicles, off-road equipment, battery disconnect systems, mining vehicles, marine electrical systems, industrial DC cabinets, and heavy-duty power control assemblies.

The MX110CEB uses an SPST-NO contact arrangement, also described as 1 Form A. 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 switch a very high-current DC load path. The 48VDC 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 MX110CEB is its hermetically sealed construction. The gas-filled sealed chamber helps protect the internal contact system from dust, moisture, oxidation, and contaminated environments. The MX Series is designed for rugged applications and is tested according to MIL-R-6106 standards, making it suitable for off-road, tracked, marine, and heavy-duty DC equipment.

The MX110 Series is designed for demanding duty cycles and high inrush conditions. The datasheet lists 1000A continuous current with 400MCM conductor conditions, along with short-duration overload capability including 6000A for 1 second, 5000A for 10 seconds, and 3000A for 90 seconds. This makes the MX110CEB suitable for rugged DC power systems where startup surge, transient load current, or short overload events may occur.

The MX110CEB configuration includes a normally open auxiliary contact. The auxiliary contact can provide status feedback to a controller, interlock circuit, or monitoring system after the main contact changes state. This makes the MX110CEB more useful than non-auxiliary versions when the control system needs confirmation or diagnostic feedback.

Key Features

• Genuine Sensata Gigavac MX110 Series DC contactor
• 1000A contact rating for very high-current DC power control
• 48VDC maximum switching voltage for rugged low-voltage systems
• 24VDC coil for control circuit operation
• SPST-NO contact form, also described as 1 Form A
• SPST normally open auxiliary contact for feedback or interlock use
• Hermetically sealed construction for harsh environments
• Stud termination for secure high-current power connection
• Silver contacts for long life and weld-resistant operation
• Designed for MIL and heavy-duty DC applications

Applications

The MX110CEB DC contactor is suitable for systems that need reliable connection and disconnection of very high-current, low-voltage DC circuits. Typical applications include military vehicles, electric utility vehicles, off-road machinery, mining equipment, battery disconnect units, marine battery systems, emergency power equipment, industrial control cabinets, and heavy-duty DC distribution systems.

In a battery system, the Sensata Gigavac MX110CEB can be used as a main contactor, load disconnect contactor, charge path contactor, or safety isolation device depending on the circuit design. Its 1000A current rating makes it suitable for very high-current low-voltage platforms, while the 48VDC switching rating makes it better matched to rugged low-voltage DC systems rather than high-voltage EV traction platforms.

Why Choose Sensata Gigavac MX110CEB

The Sensata Gigavac MX110CEB is a strong option when the system requires 1000A current capacity, 48VDC switching, 24VDC coil operation, sealed construction, chassis mounting, stud termination, and a normally open auxiliary contact. Compared with ordinary open contactors, the hermetic seal helps improve reliability in vibration, moisture, and contamination-prone environments.

For replacement and maintenance projects, MX110CEB should be selected when the original design requires MX110 Series performance with 1000A contact rating, 48VDC maximum switching voltage, 24VDC coil voltage, SPST-NO contact form, stud termination, and normally open auxiliary contact. Before ordering, confirm coil voltage, load current, switching voltage, mounting space, terminal type, and auxiliary contact logic.

FAQ

Q1: What is the full product name of MX110CEB?
A1: The full product name is Sensata Gigavac MX110CEB DC Contactor.

Q2: What is the current rating?
A2: The contact rating current is 1 kA, equal to 1000A.

Q3: What does 24VDC mean?
A3: 24VDC is the coil voltage used to operate the contactor, not the main load circuit rating.

Q4: What is the main switching voltage?
A4: Distributor attributes list the switching voltage as 48VDC for this MX110 configuration.

Q5: Does MX110CEB include an auxiliary contact?
A5: Yes. MX110CEB includes a normally open auxiliary contact.

Q6: Where is MX110CEB commonly used?
A6: It is commonly used in military vehicles, heavy-duty equipment, mining vehicles, battery disconnect systems, marine DC systems, and industrial low-voltage DC power control.