The Schneider Electric Square D S48945 is a Kirk key lock specifically engineered for secure access control on Masterpact NT, NW, W, and Y frame universal power circuit breakers. This lock mechanism is designed to prevent unauthorized operation and ensure safety protocols are maintained within electrical distribution systems.

Technical details

• Lock Type: Kirk Key Lock
• Compatibility: Masterpact NT, NW, W, and Y frame universal power circuit breakers
• Functionality: Provides mechanical interlock for circuit breaker operation
• Material: Durable construction for industrial environments
• Security Feature: Prevents unauthorized access and operation
• Application: Electrical power distribution and control
• Series: Square D S48945

Applications & compatibility

This Kirk key lock is essential for applications requiring strict access control and safety interlocks on high-power circuit breakers. It is commonly deployed in industrial facilities, data centers, and critical infrastructure where the integrity of power distribution is paramount. The S48945 ensures that only authorized personnel can operate the specified Masterpact breakers, preventing accidental trips or unsafe switching sequences.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D S48945 or contact our technical team for cross-reference assistance with compatible Masterpact components.