Sensata Gigavac GXNC14CCB

Sensata Gigavac GXNC14CCB is a GXNC14 series normally closed High Voltage DC Contactor designed for fail-safe DC circuits, discharge paths, dump switch branches, and default-closed 800VDC power architectures. This High Voltage DC Contactor provides 350A current capacity, 800VDC switching voltage, 24VDC coil control, SPST-NC double-break contact form, stud terminals, wire leads, chassis mounting, and hermetically sealed EPIC construction. GXNC14CCB is a practical High Voltage DC Contactor when a design needs normally closed behavior with higher current capacity than smaller discharge contactors.

The GXNC14CCB High Voltage DC Contactor is not a standard normally open GX14 contactor. It remains closed when coil power is removed and opens when the coil is energized. This makes the High Voltage DC Contactor useful for default-closed service paths, emergency dump circuits, battery support circuits, and special safety designs where the unpowered state must be defined by the contactor itself.

Product Positioning

GXNC14CCB is positioned as a 350A normally closed High Voltage DC Contactor for 800VDC fail-safe DC systems. It is different from HXNC241CAB because GXNC14CCB focuses on the 800VDC class and a higher 350A current rating. This High Voltage DC Contactor is useful when the system needs a rugged normally closed path inside a battery cabinet, industrial DC panel, or service disconnect assembly.

The main application angle for GXNC14CCB is fail-safe service and dump path switching. A High Voltage DC Contactor in this role may keep a discharge path available by default, control a resistor branch, support maintenance isolation, or define an emergency DC circuit state. The GXNC14CCB High Voltage DC Contactor gives engineers a sealed GXNC14 option for this normally closed behavior.

Key Specifications

• Model: GXNC14CCB
• Brand: Sensata-Gigavac
• Series: GXNC14
• Product type: High Voltage DC Contactor
• Contact arrangement: normally closed High Voltage DC Contactor
• Contact form: SPST-NC-DB / 1 Form Y
• Current rating: 350A High Voltage DC Contactor class
• Switching voltage: 800VDC High Voltage DC Contactor class
• Coil voltage: 24VDC coil for High Voltage DC Contactor control
• Termination style: stud terminals and wire leads
• Mounting type: chassis mount
• Construction: hermetically sealed EPIC High Voltage DC Contactor body
• Coil current reference: about 70mA according to DigiKey data
• Typical role: fail-safe High Voltage DC Contactor, discharge High Voltage DC Contactor, default-closed service High Voltage DC Contactor

Features and Benefits

The first benefit of GXNC14CCB is normally closed operation. A normally closed High Voltage DC Contactor can support a circuit path when the coil is not powered. In fail-safe designs, this default state may be used for discharge, emergency response, or service logic. GXNC14CCB gives engineers a High Voltage DC Contactor for systems where normally closed behavior is intentional.

The second benefit is 350A current capacity. Some dump switch or default-closed DC paths need more current capability than compact MiniTACTOR devices can provide. A 350A High Voltage DC Contactor can support larger battery branches, industrial DC service circuits, and high-current discharge paths when the system is designed correctly.

The third benefit is 24V coil compatibility. Many industrial and battery control systems use 24V auxiliary power. A 24VDC High Voltage DC Contactor can be driven by suitable controllers, safety relays, or BMS outputs without adding a separate coil voltage.

The fourth benefit is hermetically sealed EPIC construction. A High Voltage DC Contactor used in industrial or battery equipment may face vibration, dust, humidity, and service exposure. The sealed GXNC14 design helps protect the switching chamber and supports dependable operation in harsh conditions.

Applications

GXNC14CCB is commonly used as a High Voltage DC Contactor in fail-safe DC circuits. It can support discharge resistor paths, dump switch circuits, maintenance service branches, and default-closed battery support circuits. The GXNC14CCB High Voltage DC Contactor is especially useful where the equipment operates in an 800VDC architecture and needs 350A current capacity.

In industrial DC panels, this High Voltage DC Contactor can help define a service state or support controlled energy removal. In battery systems, GXNC14CCB can provide a default-closed branch for special safety logic. In test equipment, the High Voltage DC Contactor can connect a discharge or load branch unless the controller commands it open.

Additional applications include renewable energy support cabinets, inverter service modules, high-current DC test benches, mobile power systems, and battery maintenance equipment. The High Voltage DC Contactor must be selected with full attention to default state, coil logic, current duration, thermal design, resistor sizing, and protection coordination.

Selection Guide

Select GXNC14CCB when the design requires a normally closed High Voltage DC Contactor with 350A current rating, 800VDC switching voltage, 24VDC coil control, stud terminals, and wire leads. If the application requires normally open switching, choose a GX14, GX16, GV, or GTM High Voltage DC Contactor instead. If the system voltage is 1500VDC, review HXNC241 or another 1500V High Voltage DC Contactor option.

Before installation, confirm whether the circuit should be closed when coil power is removed. Also confirm discharge current, maximum voltage, cable size, coil driver capacity, mounting clearance, thermal conditions, and service safety requirements. A normally closed High Voltage DC Contactor should be reviewed as part of the complete safety system.

FAQ

Is GXNC14CCB a High Voltage DC Contactor?

Yes. GXNC14CCB is a Sensata-Gigavac GXNC14 High Voltage DC Contactor rated for 350A and 800VDC switching.

Is GXNC14CCB normally closed?

Yes. GXNC14CCB is a normally closed High Voltage DC Contactor with SPST-NC / 1 Form Y style operation.

What coil voltage does GXNC14CCB use?

The GXNC14CCB High Voltage DC Contactor uses a 24VDC coil.

Where is GXNC14CCB commonly used?

GXNC14CCB is commonly used as a High Voltage DC Contactor in fail-safe DC circuits, discharge paths, dump switch branches, service disconnect systems, and high-current 800VDC support circuits.

Conclusion

Sensata Gigavac GXNC14CCB is a normally closed 350A, 800VDC High Voltage DC Contactor with 24VDC coil control, SPST-NC contact form, stud terminals, wire leads, chassis mounting, and hermetically sealed EPIC construction. It is a practical High Voltage DC Contactor for fail-safe service paths, dump switch circuits, discharge branches, and default-closed DC systems that need rugged 800VDC switching with 24V control compatibility.