Square D 8501RSD14V53 Plug-in Relay 5A 4PDT 24VDC

Product Description

The SQUARE D 8501RSD14V53 is an electromechanical plug-in general purpose relay rated for 5 amps at 240 volts AC with a 24 volt DC coil voltage and a 4PDT (four-pole double-throw) contact configuration. It is designed for control circuit applications in commercial and industrial electrical systems where a compact, socketed relay is needed for switching multiple circuits simultaneously. The plug-in terminal style allows for quick installation and field replacement without soldering or hard wiring directly to the coil or contacts. Electricians and controls technicians are the primary installers of this relay in panel and enclosure builds.

This relay is suited for use in low-voltage control panels, automation enclosures, HVAC control circuits, and light industrial switching applications. The 4PDT contact form provides four independently switched poles, making it effective in applications that require simultaneous switching of multiple signal or power circuits. The 24 VDC coil makes it compatible with common PLC output modules and low-voltage control transformers found in building automation and mechanical systems.

Key Features

• 5 amp contact rating at 240 volts AC for light-duty switching loads
• 24 volt DC coil voltage compatible with PLC outputs and low-voltage control circuits
• 4PDT contact form provides four independently switchable poles
• Plug-in terminal type enables fast field replacement without rewiring the socket
• CE, CSA, UL Recognized, and RoHS compliant for use in code-required installations

Compatibility

Designed as an OEM-style plug-in replacement relay for use in standard relay sockets that accept the 4PDT plug-in form factor common to general purpose relay applications in control panels and enclosures.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize and lock out the control panel before removing or inserting the relay into its socket. Verify coil voltage and contact rating against the circuit requirements before installation. Do not exceed the rated contact current or voltage for the application.