Aci 116116 Limit Switch Safety Key Fr Fx Series

Product Description

The ACI 116116 is a safety key accessory designed for limit switches used in industrial and commercial control applications. This key engages the actuator mechanism on compatible safety switches, enabling or disabling switch operation as part of a machine guarding or interlock system. At 29 millimeters in overall length, it is a compact, purpose-built component that must be installed by a qualified technician familiar with safety interlock circuits and limit switch assemblies. It ships individually and is a direct replacement when an original key is lost, worn, or damaged.

This safety key is rated for use with FR Series and FX Series safety switches. It is typically found in machine guarding installations, conveyor systems, access door interlocks, and other industrial control environments where positive-mode actuation is required. A single key per switch position is the standard fitment. Technicians replacing this part should verify the key profile matches the actuator head of the installed switch before ordering.

Key Features

• 29 millimeters overall length — compact form factor for tight actuator housings
• Designed specifically for FR Series and FX Series safety switches
• Switch accessory for interlock and machine guarding circuits
• Individual unit packaging suitable for single-point replacement
• Lightweight at 0.3 pounds for easy handling during service

Compatibility

Designed for use with FR Series and FX Series safety switches as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified electrician or controls technician familiar with safety interlock systems. De-energize and lock out the machine circuit before servicing any limit switch or associated accessory. Verify the key profile and length are correct for the specific switch actuator head before insertion. Follow applicable NFPA 70 (NEC) and machine safety standards during installation and commissioning.