Square D 8501XMO40V02 General Purpose Relay 20A 4NO

Product Description

The SQUARE D 8501XMO40V02 is an electromechanical general purpose relay with screw clamp terminal connections, designed for industrial and commercial control circuit applications. It carries a 20-amp rating at 600 VAC and features a 4NO (four normally open) contact configuration. Coil voltage is rated at 110 VAC at 50 Hz and 120 VAC at 60 Hz, making it compatible with standard North American and international supply frequencies. Licensed electricians and industrial control technicians install this relay in control panels, machinery, and automation systems where reliable switching of load circuits is required.

This relay fits residential, commercial, and light industrial control applications where a robust electromechanical switching solution is needed. It is well suited for motor control circuits, HVAC control panels, lighting contactors, and general-purpose switching tasks. The screw clamp terminal design supports secure conductor termination in panel builds and retrofit installations alike. With a 20-amp contact rating at 600 VAC, it handles a broad range of inductive and resistive loads found in typical field installations.

Key Features

• 20-amp contact rating at 600 VAC for versatile load switching
• 4NO contact form provides four independent normally open switching paths
• Screw clamp terminals deliver secure, tool-assisted conductor termination
• Dual-frequency coil: 110 VAC at 50 Hz and 120 VAC at 60 Hz
• Meets CE, CSA, UL Listed, and RoHS compliance standards

Compatibility

Designed as an OEM-style replacement or direct-fit general purpose relay for industrial and commercial control panel applications requiring a 4NO electromechanical relay with screw clamp terminals at 110/120 VAC coil voltage.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the control panel before removing or installing the relay. Confirm coil supply voltage matches the relay rating before energizing. Screw clamp terminals require a flat-blade screwdriver for proper torque; do not over-drive the terminal screws.