Square D 7A4N Limit Switch Lever Roller 2 in Cast Zinc

Product Description

The SQUARE D 7A4N is a replacement lever roller accessory designed for use with industrial and commercial limit switches. This component features a cast zinc body measuring 2 inches in overall length with a 3/4-inch diameter nylon roller and a 1/4-inch face width. The nylon roller provides smooth, low-friction actuation against cams, dogs, or actuating surfaces in automated or safety-interlock applications. Licensed electricians and industrial maintenance technicians typically install or replace this part when the original roller shows wear, cracking, or binding that affects switch response accuracy.

This lever roller is suited for limit switch assemblies used in light industrial machinery, conveyor systems, material handling equipment, and other automated control applications where a roller-style actuator is required. It is intended as an accessory or replacement component for compatible limit switch bodies and is sold individually as a single unit.

Key Features

• Cast zinc body construction for durability in industrial environments
• Nylon roller material for smooth, low-wear actuation
• 2-inch overall length fits standard lever roller mounting configurations
• 3/4-inch roller diameter with 1/4-inch face width for consistent cam engagement
• Designed as a Switch Accessory replacement component for limit switch assemblies
• Sold as a single unit with no minimum order beyond one piece

Compatibility

Designed for use with limit switches as a replacement lever roller accessory. Consult the specific limit switch body model documentation to confirm lever roller compatibility before ordering.

Installation Notes

Installation should be performed by a qualified electrician or industrial maintenance technician. De-energize and lock out the control circuit before removing or installing any limit switch components, following NFPA 70E lockout/tagout procedures. Verify that the roller diameter and face width are compatible with the existing actuating cam or dog geometry before final assembly. Do not force the roller onto the lever arm; confirm all fasteners are secure before returning the circuit to service.