Sensata Gigavac MX14CA

Sensata Gigavac MX14CA is a 400A DC Power Contactor from the MX14 series, designed for low-voltage lift systems, hydraulic pump packs, electric work platforms, service machinery, and 24V-controlled auxiliary power equipment. This DC Power Contactor uses an SPST-NO contact form, a 24VDC coil, stud power terminals, wire lead control termination, chassis mounting, silver contacts, and hermetically sealed construction. It is intended for 12-48VDC systems where the current level is high but the application does not require an 800V or 1500V high-voltage contactor.

MX14CA is useful when a machine builder needs a rugged contactor for heavy low-voltage loads that cycle repeatedly during equipment operation. Hydraulic pump motors, lift drives, winch circuits, actuator power branches, and auxiliary inverter feeds can draw substantial current even at 24V or 48V. A 400A DC Power Contactor gives the designer a controlled switching point for these loads while keeping the control side compatible with common 24V industrial wiring.

Product Positioning

MX14CA should be positioned as a 24V coil DC Power Contactor for lift, pump, and work-platform power systems. It is different from MX14BA, which uses a 12VDC coil and is better matched to 12V vehicle-style control circuits. MX14CA is the better fit when the machine already has a 24V control rail for controllers, sensors, switches, safety relays, and contactor coils.

This model should not be described as a High Voltage DC Contactor. The MX14 platform is focused on low-voltage 12-48VDC switching with high current capacity. That makes MX14CA suitable for rugged low-voltage equipment rather than high-voltage EV battery packs or 1500VDC storage systems.

Key Specifications

• Manufacturer series: Sensata Gigavac MX14
• Part number: MX14CA
• Product type: DC Power Contactor
• Contact form: SPST-NO, 1 Form A
• Rated current: 400A
• Switching voltage range: 12-48VDC according to distributor data
• Coil voltage: 24VDC
• Coil current: approximately 97mA according to DigiKey data
• Coil power: approximately 2.3W according to DigiKey data
• Must operate voltage: approximately 16VDC according to DigiKey data
• Must release voltage: approximately 2VDC according to DigiKey data
• Termination style: stud terminals and wire leads
• Mounting type: chassis mount
• Contact material: silver
• Construction: hermetically sealed
• Operating temperature range: -55°C to +100°C
• Typical operate time: approximately 20ms
• Typical release time: approximately 12ms

Features and Benefits

The main advantage of MX14CA is its 400A current rating in a compact low-voltage package. A DC Power Contactor in this range can switch loads that are too large for ordinary relays, including pump motors, lift drives, battery output branches, DC distribution feeds, and high-current accessory circuits.

The 24VDC coil supports common industrial equipment architecture. Many lift platforms, small utility machines, material movement systems, and hydraulic power packs already use 24VDC controls. Selecting MX14CA allows the contactor to work with that existing auxiliary supply instead of requiring a separate 12V or 48V coil source.

Stud terminals provide secure high-current connection points for cables or busbars. Low-voltage circuits can carry very high current, so terminal torque, cable size, heat rise, and fuse coordination matter. MX14CA gives OEMs a practical power connection format for rugged machine compartments.

Wire leads make the control side easy to route to switches, harnesses, relays, or controller outputs. This is useful when the contactor is mounted near a battery, pump motor, or DC distribution point while the operator controls are located elsewhere in the machine.

Hermetically sealed construction helps protect the internal switching chamber from dust, moisture, vibration, and airborne contamination. A sealed DC Power Contactor is valuable in service machinery, lift equipment, industrial carts, and outdoor-accessory systems that may experience repeated duty cycles and harsh operating conditions.

Applications

MX14CA is especially suitable for lift and hydraulic pump systems. In an electric work platform, service lift, hydraulic power unit, or compact utility machine, this DC Power Contactor can connect the pump motor circuit, isolate the battery feed, switch an actuator power branch, or disconnect a protected load during maintenance and fault conditions.

The contactor can also be used in low-voltage DC distribution panels, industrial service equipment, mobile power packs, marine auxiliary circuits, winch systems, and battery-powered machinery. Its 400A rating provides strong current capacity for 12-48VDC equipment without moving to a larger 500A or 600A platform.

Selection Guide

Before selecting MX14CA, confirm that the circuit is within the 12-48VDC switching range and 400A current class. Review continuous current, peak current, motor inrush, switching frequency, cable size, ambient temperature, and expected duty cycle. Pump motors and actuator circuits can create high surge current, so the DC Power Contactor should be evaluated in the complete electrical system.

The coil supply should be a stable 24VDC source. If the equipment uses 12VDC control power, MX14BA may be a better match. If the system needs higher current capacity, MX15 or MX16 models should be reviewed. If direct auxiliary feedback is required, confirm whether a related MX14 auxiliary-contact variant is needed.

FAQ

What is MX14CA used for?

MX14CA is used for lift systems, hydraulic pump packs, low-voltage DC distribution, battery-powered machinery, and 12-48VDC high-current switching.

Is MX14CA a DC Power Contactor?

Yes. MX14CA is a Sensata Gigavac MX14 series DC Power Contactor with a 400A current rating and 12-48VDC switching range.

What coil voltage does MX14CA use?

MX14CA uses a 24VDC coil. DigiKey lists approximately 97mA coil current and 2.3W coil power.

What termination style does MX14CA use?

MX14CA uses stud terminals for the main power path and wire leads for the coil connection, with chassis mounting.

How is MX14CA different from MX14BA?

MX14CA uses a 24VDC coil, while MX14BA uses a 12VDC coil. Both are MX14 series 400A DC Power Contactor options for 12-48VDC systems.

Conclusion

MX14CA is a 400A 12-48VDC DC Power Contactor for lift equipment, hydraulic pump systems, low-voltage distribution panels, and battery-powered machinery. With its Sensata Gigavac MX14 sealed construction, 24VDC coil, SPST-NO contact form, stud terminals, wire leads, chassis mounting, and silver contacts, it is a practical choice for OEM designs that need reliable 24V-controlled high-current switching in rugged low-voltage DC systems.