Square D 7S Limit Switch Spring Rod 6 Inch Nylon Roller

Product Description

The SQUARE D 7S is a spring rod accessory designed for use with industrial and commercial limit switches. It functions as the mechanical actuator interface, transmitting contact force from a moving machine element to the limit switch mechanism. The 7S measures 6 inches in overall length and 0.25 inches in diameter, with a 0.25-inch face width nylon roller at the tip. This roller reduces friction and wear during repeated cycling. Electricians and maintenance technicians install this type of rod to restore or upgrade the actuator assembly on existing limit switch bodies.

The 7S spring rod is suited for machine tool, conveyor, and industrial automation applications where a limit switch requires a roller-tip actuator. It is typically installed in environments where a physical stop or cam triggers the switch at a defined travel point. The nylon roller is appropriate for light-duty contact surfaces. This part is sold and packaged individually.

Key Features

• 6 inch overall length for reach into standard actuator housings
• 0.25 inch diameter rod for compatibility with standard limit switch actuator ports
• Nylon roller tip reduces surface wear during repeated actuation cycles
• 0.25 inch roller face width provides a defined contact point
• Spring rod design provides return force after actuation

Compatibility

Designed as a replacement or spare actuator spring rod for use with compatible SQUARE D limit switches. Verify actuator port diameter and rod length requirements against the host limit switch body before installation.

Installation Notes

Installation should be performed by a qualified electrician or maintenance technician. De-energize and lock out the machine circuit before disassembling the limit switch actuator assembly. Confirm rod diameter and thread engagement with the limit switch body before securing. Follow applicable NFPA 70 and machine safety requirements for the installation environment.