Square D EK3001 Safety Switch Electrical Interlock

Product Description

The SQUARE D EK3001 is an electrical interlock accessory designed for use with compatible safety switches. It mechanically and electrically coordinates the operation of two switching devices, preventing both from being closed simultaneously. This type of interlock is a critical safety component in industrial and commercial electrical distribution systems. Licensed electricians and electrical contractors install this accessory during initial panel or switchgear assembly or as a replacement on existing equipment. The EK3001 measures 5.3 inches in length, 4.7 inches in width, and 3.6 inches in height, and weighs 0.4 pounds.

Electrical interlocks like the EK3001 are used in applications where two safety switches must be interlocked to prevent simultaneous operation, a common requirement in transfer switch arrangements, dual-feed systems, and certain motor control configurations. This accessory is suited for commercial and industrial installations where NEC requirements mandate mechanical or electrical interlock between disconnecting means.

Key Features

• Electrical interlock function prevents simultaneous closure of two connected safety switches
• Compact form factor: 5.3 x 4.7 x 3.6 inches for straightforward installation within enclosures
• Lightweight at 0.4 pounds for easy handling during installation
• Sold as a single-unit package for direct replacement or new installation
• OEM-style accessory for use with compatible SQUARE D safety switch enclosures

Compatibility

Designed as an OEM-style replacement electrical interlock accessory for compatible SQUARE D safety switch assemblies. Refer to the SQUARE D product documentation for specific switch model compatibility before installation.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. Always de-energize and lock out the affected circuit at the upstream disconnect before servicing or installing any safety switch accessory. Verify that the interlock aligns correctly with the switch mechanism before securing fasteners. Do not force the interlock into position, as misalignment can cause improper operation of the safety switch.