Square D 8501RS42P14V20 General Purpose Relay Dpdt 10A

Product Description

The SQUARE D 8501RS42P14V20 is an electromechanical plug-in general purpose relay rated for 10 amps at 240 VAC with a double-pole double-throw (DPDT) contact form. It supports motor loads up to 1/2 hp at 240 volts and 1/3 hp at 120 volts, making it a versatile switching component for control circuits. The coil operates on 120 VAC at 50/60 Hz. This relay is designed for fast field installation via its plug-in terminal interface, reducing wiring time and allowing easy replacement without disturbing surrounding wiring. Electricians and controls technicians install this type of relay in industrial and commercial control panels, HVAC equipment, and machine automation enclosures.

This relay fits general-purpose control applications in residential, commercial, and light industrial settings. Common use cases include HVAC control panels, motor starter circuits, and relay-logic automation panels where a compact DPDT switching element is required. Its plug-in design makes it well suited for relay socket bases common in panel-board and DIN-rail mounted enclosures. The 120 VAC coil voltage is a standard control-circuit voltage in North American HVAC and industrial installations operating at 50 or 60 Hz.

Key Features

• DPDT contact form provides two independent switched circuits from a single coil
• 10 amp contact rating at 240 VAC supports motor and resistive loads
• Motor load rated: 1/2 hp at 240 volts, 1/3 hp at 120 volts
• 120 VAC coil at 50/60 Hz suits standard North American control circuits
• Plug-in terminal design enables tool-free relay swaps and fast serviceability
• Meets CE, CSA, RoHS, and UL Recognized component standards

Compatibility

Designed as an OEM-style plug-in general purpose relay for use in compatible relay socket bases accepting DPDT plug-in relays with matching pin configurations. Verify socket base pin layout before installation.

Installation Notes

Installation of this relay should be performed by a licensed electrician or qualified controls technician in accordance with the NEC and applicable local codes. De-energize and lock out the control panel before removing or inserting the relay to prevent arcing across the contacts. Confirm the socket base pin configuration matches this relay before seating it. Do not exceed the published contact current or motor horsepower ratings for the intended load.