TE Connectivity KUP-14A55-120 Relay

The TE Connectivity KUP-14A55-120 Relay is a heavy-duty general purpose panel plug-in enclosed relay engineered for rigorous HVACR and industrial automation demand. This 3PDT relay (3 Form C) features a 120Vac coil and is rated for a 10Amp contact current, making it a reliable solution for switching multiple independent circuits simultaneously. Built with a bracket mount case and quick-connect/solder terminals, it offers versatile installation options for contractors working on motor controls, lighting systems, or power distribution panels.

The Potter & Brumfield KUP series design utilizes silver cadmium oxide contacts to provide high conductivity and resistance to contact welding under inductive loads. With a 1.7k Ohm coil resistance and Class B insulation, the KUP-14A55-120 ensures stable performance in high-temperature environments ranging from -45°C to 45°C. Whether you are replacing an aging 9-1393117-9 relay or installing a new 120V 10A 3PDT power relay, this unit provides the mechanical durability required for 10 million operations, ensuring long-term system uptime in critical cooling and heating applications.

Key Benefits

• Triple Pole Double Throw (3PDT): Allows for the simultaneous control of three separate electrical paths from a single 120VAC signal.
• Flexible Mounting: The bracket mount enclosure facilitates direct panel installation, while the 0.187-inch quick-connect terminals simplify field wiring.
• Industrial Grade Construction: Enclosed design protects internal components from dust and debris commonly found in mechanical rooms.
• High Switching Capacity: Capable of handling 10-amp loads at 240VAC or 32VDC, suitable for moderate motor and resistive loads.

Common Questions

What is the difference between this and a standard DPDT relay?
The KUP-14A55-120 provides three sets of contacts (3PDT) instead of two, allowing you to manage more complex interlocking sequences or switch an extra leg of power without adding a second relay.

Can I use this relay in a socket instead of using the bracket?
While this model includes a bracket mount case for direct attachment, the pin configuration is typically compatible with standard 11-pin sockets; however, the physical bracket may interfere with some socket clips, so check your clearance first.

What fails first on these units in HVAC applications?
Most failures occur due to contact pitting from arcing under high-inductive loads. If your coil is receiving 120Vac but the load isn't engaging, the silver alloy contacts may have reached their end of life or oxidized.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.