Square D 8501RS44P14V20 General Purpose Relay 10A 4PDT

Product Description

The SQUARE D 8501RS44P14V20 is a plug-in electromechanical general purpose relay rated for 10 amps at 250 VAC with a 4PDT contact configuration. The coil operates at 120 VAC across both 50 Hz and 60 Hz systems, making it compatible with standard North American and international supply frequencies. Motor load ratings reach 1/2 hp at 120 volts and 3/4 hp at 240 volts. Licensed electricians and controls technicians install this relay in industrial control panels, HVAC control circuits, and automation systems where reliable switching of multiple circuits from a single coil signal is required. The plug-in terminal design simplifies field replacement without rewiring the socket base.

This relay is suited for light commercial and industrial applications where a compact, socketed relay is needed to switch multiple independent circuits simultaneously. Typical installations include machine control panels, building automation systems, HVAC equipment control boards, and process control enclosures. The 4PDT arrangement provides four independent switched poles, allowing one control signal to manage several load circuits at once. It is intended for use with a compatible relay socket base that accepts the plug-in terminal format.

Key Features

• 4PDT contact form provides four independently switched poles from a single coil
• Rated 10 amps at 250 VAC for reliable switching of control and light motor loads
• Motor load rating of 1/2 hp at 120 volts and 3/4 hp at 240 volts
• 120 VAC coil voltage compatible with 50 Hz and 60 Hz supply frequencies
• Plug-in terminal design allows fast field replacement without rewiring the base socket
• Meets CE, CSA, UL Recognized, and RoHS compliance standards

Compatibility

Designed as an OEM-style plug-in replacement relay for industrial control panels, HVAC control systems, and automation enclosures that utilize a compatible 4PDT relay socket base accepting the plug-in terminal format.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and any applicable local electrical codes. De-energize and lock out the control panel before removing or inserting the relay to prevent contact arcing or accidental circuit activation. Verify that the socket base is rated for the relay's contact and coil specifications before plugging in. Do not exceed the published amperage or motor horsepower ratings for the contact load.