Sensata Gigavac GX14CCC

The Sensata Gigavac GX14CCC is a GX14 Series hermetically sealed DC power contactor designed for reliable high-current switching in harsh environments. This model is configured with a 350 A current rating, 800VDC switching capability, a 24VDC coil, 48 inch flying leads, and an SPST-NC auxiliary contact. The 800VDC value refers to the main power circuit switched by the contactor, while the 24VDC value refers to the coil/control circuit used to operate it.

Product Description

The Sensata Gigavac GX14CCC is a high-performance GX Series DC contactor for applications that require dependable switching of high-current DC loads. With a 350 A current rating and switching capability up to 800VDC, it is suitable for electric vehicles, hybrid vehicles, battery systems, industrial power equipment, heavy trucks, emergency vehicles, marine systems, battery chargers, and power management equipment.

GX14CCC uses a normally open main power contact. In the de-energized state, the main contact is open and the load circuit is isolated. When the 24VDC coil is energized, the main contact closes and allows current to flow through the M10 power terminals. When coil power is removed, the main contact opens again. This makes the GX14CCC useful as a main contactor, battery disconnect, charger contactor, traction power contactor, or load isolation contactor in properly designed DC systems.

The suffix is important. In GX14CCC, the first “C” after GX14 identifies the 24VDC coil with internal coil suppression. The second “C” identifies 48 inch flying leads. The final “C” identifies an SPST normally closed auxiliary contact. The main contact remains SPST-NO; the normally closed function applies to the auxiliary contact only. This distinction is important because some listings may describe the auxiliary function without making the main contact type clear.

Key Features

• 350 A current rating for demanding DC power switching systems.
• Switching capability from low-voltage DC circuits up to 800VDC.
• 24VDC coil for common industrial, vehicle, and battery control systems.
• SPST-NO main contact for load connection and isolation.
• SPST-NC auxiliary contact mechanically linked to the main contacts.
• 48 inch flying leads for flexible installation in equipment panels and battery systems.
• Hermetically sealed EPIC construction for harsh environments.
• Internal coil suppression for DC coil protection and easier system design.
• Low contact resistance for efficient high-current operation.
• Mounts in any position and exceeds IP67 and IP69K sealing requirements.

Applications

The Sensata Gigavac GX14CCC is commonly used in electric and hybrid vehicles, battery energy systems, DC fast-charge support circuits, industrial battery chargers, construction equipment, heavy-duty trucks, emergency vehicles, marine power systems, recreational vehicles, and DC power distribution equipment. Its sealed design is well suited for outdoor, mobile, or harsh installations where vibration, moisture, dust, and temperature variation are concerns.

The normally closed auxiliary contact can be used by a control system to monitor contactor state. Because the auxiliary contact is mechanically linked to the main contacts, it provides useful feedback for diagnostics, interlock logic, and system status monitoring. The auxiliary contact is not a replacement for power switching; it is a low-current signal contact and should only be used within its rated limits.

Design Notes

The 800VDC and 24VDC values describe two different electrical paths. The 800VDC rating applies to the main load circuit switched by the power contacts. The 24VDC rating applies to the coil circuit that activates the contactor. A system can use a 24V controller, relay driver, or battery management output to energize the coil while the main terminals switch a much higher DC bus.

For capacitive loads such as inverter inputs, DC link capacitors, and battery power electronics, a pre-charge circuit is normally required before closing the main contactor. This helps reduce inrush current and protects the contactor, fuses, busbars, and connected equipment. The GX14 series also uses internal coil suppression, so external suppression components should follow the manufacturer’s application guidance.

Why Choose Sensata Gigavac GX14CCC

GX14CCC is a strong choice when a system needs a 350 A sealed DC contactor with a 24V control coil and auxiliary status feedback. Compared with no-auxiliary versions, GX14CCC gives the control system an additional normally closed feedback path. Compared with short-lead versions, the 48 inch leads provide more installation flexibility in larger enclosures or vehicle layouts.

For backend product listings, use the full name Sensata Gigavac GX14CCC instead of only GX14. This prevents confusion with GX14CAC, GX14CAB, GX14CC, and other GX14 variants that may have different lead lengths or auxiliary contact options.

FAQ

Is GX14CCC normally open or normally closed?
The main power contact is SPST-NO normally open. The auxiliary contact is SPST-NC normally closed.

Is GX14CCC an 800V or 24V contactor?
It uses both values for different circuits. The main contact switches DC loads up to 800VDC, while the coil/control voltage is 24VDC.

What lead length does GX14CCC use?
GX14CCC uses 48 inch flying leads for the coil and auxiliary wiring.

Does GX14CCC include an auxiliary contact?
Yes. The final C in GX14CCC indicates an SPST normally closed auxiliary contact.