Square D 8501RS43V14 General Purpose Relay 10A 3PDT 24VAC

Product Description

The SQUARE D 8501RS43V14 is an electromechanical plug-in general purpose relay rated for 10 amps at 250 VAC with a 3PDT (three-pole double-throw) contact configuration. The coil operates on 24 VAC at 50/60 Hz, making it well suited for low-voltage control circuits found in HVAC, refrigeration, and light industrial equipment. Motor load ratings are 1/2 hp at 120 volts and 3/4 hp at 240 volts. The plug-in terminal design allows for fast replacement without rewiring the socket base. Licensed electricians and HVAC technicians are the primary installers for this type of control component.

This relay is typically used in residential and light commercial control panels, fan relay boards, and sequencing circuits where a low-voltage signal must switch a higher-voltage load. The 24 VAC coil voltage aligns with standard thermostat and building automation control circuits. Its compact footprint and plug-in format make it a common replacement part in equipment that uses octal or compatible relay sockets. The 3PDT contact form provides three independently switched circuits from a single coil energization, adding flexibility in multi-circuit switching applications.

Key Features

• 3PDT contact form — three independently switched poles for multi-circuit control
• 10 amp contact rating at 250 VAC for reliable load switching
• 24 VAC coil at 50/60 Hz compatible with standard low-voltage control systems
• Motor load rated at 1/2 hp at 120 volts and 3/4 hp at 240 volts
• Plug-in terminal design enables fast field replacement without rewiring
• CE, CSA, UL Recognized, and RoHS Compliant certifications

Compatibility

Designed as an OEM-style plug-in replacement relay for residential and light commercial control circuits using standard relay socket bases accepting a 3PDT plug-in relay with a 24 VAC coil.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC technician. De-energize and lock out the circuit before removing or installing the relay. Verify that the socket base pinout matches the 3PDT configuration of this relay before seating. Confirm coil voltage and contact ampacity requirements match the application before energizing the circuit.