Square D 8501NR43 Relay Socket 11 Pin 300 Vac 10 Amp

Product Description

The SQUARE D 8501NR43 is an 11-pin spade relay socket rated for 300 VAC and 10 amps, designed to provide a secure, serviceable mounting point for compatible plug-in relays in industrial and commercial control panels. The screw clamp terminal design allows field wiring to be connected directly to the socket, so the relay itself can be swapped without disturbing the wiring. This socket supports both DIN rail and panel mounting, giving installers flexibility in how it is integrated into an enclosure. Electricians and industrial controls technicians install this type of component in motor control centers, machine control panels, and building automation panels where relay replacement needs to be fast and repeatable.

The 8501NR43 is suited for use in low-voltage control circuits found in residential, commercial, and light industrial applications. It is commonly installed inside NEMA enclosures on standard DIN rail runs or mounted directly to a panel back plate using the panel mount option. The screw clamp terminals accept field wiring and hold connections firmly under vibration, making this socket appropriate for equipment rooms, mechanical rooms, and control cabinets where long-term connection integrity is required.

Key Features

• 11-pin spade socket configuration for compatible plug-in relays
• Rated 300 VAC and 10 amps for control circuit applications
• Screw clamp terminals for secure, tool-accessible field wiring connections
• Dual mounting options: DIN rail or panel mount
• Compact footprint at 2.8 inches long, 1.7 inches wide, and 1.1 inches tall

Compatibility

Designed as an OEM-style replacement relay socket for 11-pin spade-type plug-in relays used in industrial and commercial control panel applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the control panel before removing or installing the socket. Verify that the relay to be used matches the 11-pin spade configuration and that the circuit voltage and current do not exceed the socket ratings of 300 VAC and 10 amps. Screw clamp terminals should be tightened with an appropriate flat-blade screwdriver to ensure reliable contact.