Sensata Gigavac PNC113FDA

Sensata Gigavac PNC113FDA is a 30A 1500VDC High Voltage DC Contactor from the PNC113 MiniTACTOR series, designed for capacitor discharge, dump switch, and normally closed high-voltage DC control applications. Unlike many normally open power contactors, PNC113FDA uses an SPST-NC contact arrangement, meaning the contact path is closed in the unpowered state and opens when the 48VDC coil is energized. This makes the High Voltage DC Contactor especially useful in circuits that must provide a default discharge path or fail-safe energy release function.

The PNC113 platform is built as a compact sealed MiniTACTOR solution for high-voltage systems where the current requirement is moderate but the voltage stress is high. PNC113FDA supports safe make and break switching up to 1500VDC, with a 30A current rating and stud terminal construction. Its hermetically sealed design places both the contacts and coil inside a protected chamber, helping maintain clean switching performance in demanding environments.

Product Positioning

PNC113FDA should be positioned as a normally closed High Voltage DC Contactor for discharge and dump circuits. It is not a main battery contactor for high-current traction or large ESS output paths. Instead, it is selected when a system needs a compact contactor that can hold a discharge path closed by default and open that path only when commanded. This operating logic is valuable in capacitor banks, inverter DC links, high-voltage test equipment, battery modules, and power conversion systems that require controlled energy discharge.

Compared with normally open P Series models, this High Voltage DC Contactor serves a different safety and sequencing role. A normally open contactor is typically used to connect a load or source only after command. PNC113FDA, as a normally closed device, can be used to keep a bleed, dump, or discharge circuit available until the controller energizes the coil. This distinction should be clearly considered during system design.

Key Specifications

• Manufacturer series: Sensata Gigavac PNC113 MiniTACTOR
• Part number: PNC113FDA
• Product type: High Voltage DC Contactor
• Contact arrangement: SPST-NC, normally closed
• Rated current: 30A
• Maximum DC switching voltage: up to 1500VDC
• Coil voltage: 48VDC
• Coil current: approximately 45mA according to distributor data
• Coil power: approximately 2.16W according to distributor data
• Coil termination: M3 studs
• Power termination: M4 studs
• Mounting style: chassis or panel mount
• Construction: hermetically sealed MiniTACTOR design
• Operating temperature range: -40°C to +65°C
• Typical operate time: approximately 25ms according to distributor data
• Typical release time: approximately 8ms according to distributor data

Features and Benefits

The normally closed contact arrangement is the main feature that separates PNC113FDA from many other contactors in the same general product family. In discharge circuits, the default closed state can help provide a passive path for stored energy management. When the control system energizes the 48VDC coil, the contactor opens the circuit. This makes the High Voltage DC Contactor useful where the desired normal de-energized condition is different from a standard normally open switching device.

The 1500VDC capability is another important advantage. Many compact discharge and DC-link circuits operate at elevated voltage but do not require hundreds of amps of current capacity. PNC113FDA addresses that use case with a 30A rating in a small sealed package. This helps engineers avoid oversizing the contactor when the application needs voltage capability more than high continuous current.

The 48VDC coil supports systems that already use a 48V auxiliary power supply. This is common in energy storage controls, telecom power, industrial DC cabinets, and power conversion equipment. Using a matching coil voltage can simplify the control interface and reduce the need for additional conversion hardware.

The sealed construction helps protect the internal contact system from dust, moisture, and airborne contamination. A sealed High Voltage DC Contactor is especially helpful in outdoor cabinets, inverter enclosures, battery systems, and industrial equipment where switching reliability must remain stable across long service intervals.

Applications

PNC113FDA is especially suitable for capacitor discharge and dump switch applications. In an inverter, charger, or DC power conversion system, stored energy may remain in a capacitor bank after the main power path is opened. A normally closed High Voltage DC Contactor can be used as part of a discharge path so that the circuit has a controlled method for reducing residual voltage when the system is not actively holding the path open.

This model can also be used in high-voltage test equipment, battery pack service circuits, solar inverter support circuits, DC-link discharge modules, and safety-related energy release designs. The 30A rating makes it appropriate for lower-current high-voltage control paths rather than main load switching. The 1500VDC capability makes the High Voltage DC Contactor relevant to systems where voltage stress is higher than the current requirement.

In renewable energy and energy storage equipment, PNC113FDA may support discharge control around power conversion stages, service isolation logic, or maintenance safety circuits. The final implementation should be validated with the discharge resistor, timing requirement, stored energy level, insulation spacing, and protection strategy of the complete system.

Selection Guide

Before selecting PNC113FDA, confirm that the system needs a normally closed contactor. This is the most important decision point. If the circuit should remain open when control power is removed, a normally open model is usually more appropriate. If the circuit should remain closed in the de-energized state for discharge or dump switching, PNC113FDA may be the correct High Voltage DC Contactor configuration.

Engineers should also confirm maximum DC voltage, continuous current, discharge current, switching duty, resistor value, stored energy, and thermal behavior. Although PNC113FDA supports up to 1500VDC and 30A, discharge circuits can create significant energy stress depending on the capacitor bank and timing profile. The contactor should be evaluated together with the full discharge network.

The coil supply should be a stable 48VDC source. If the system uses 12VDC or 24VDC control power, other PNC113 variants may be more suitable. Designers should also verify M3 and M4 stud connections, mounting orientation, creepage and clearance, enclosure conditions, and service safety requirements.

FAQ

What is PNC113FDA used for?

PNC113FDA is used for capacitor discharge, dump switch, DC-link discharge, and other high-voltage circuits that require a normally closed contactor.

Is PNC113FDA a High Voltage DC Contactor?

Yes. PNC113FDA is a PNC113 MiniTACTOR High Voltage DC Contactor with 30A current rating and switching capability up to 1500VDC.

Is PNC113FDA normally open or normally closed?

PNC113FDA is normally closed. It uses an SPST-NC contact arrangement, so the contact path is closed when the coil is not energized.

What coil voltage does PNC113FDA use?

PNC113FDA uses a 48VDC coil, making it suitable for control systems with a 48V auxiliary power supply.

How is PNC113FDA different from P105FDA?

PNC113FDA is a normally closed 30A contactor for discharge and dump switch functions, while P105FDA is a normally open 50A MiniTACTOR used for compact high-voltage switching and pre-charge-style applications.

Conclusion

PNC113FDA is a compact 30A 1500VDC High Voltage DC Contactor for normally closed discharge and dump switch applications. With its Sensata Gigavac PNC113 MiniTACTOR design, 48VDC coil, SPST-NC contact form, stud terminals, chassis mounting, and hermetically sealed construction, it is a practical option for capacitor discharge, DC-link energy release, high-voltage test equipment, and compact power conversion systems that require a default closed switching path.