1SDA073786R1 ABB KLC-S Key Lock Open N.20008 E1.2

Why Choose the ABB KLC-S Key Lock Open N.20008 E1.2?

The ABB KLC-S Key Lock Open N.20008 E1.2, order code 1SDA073786R1, is a mechanical key-locking accessory designed specifically for the ABB SACE Emax 2 E1.2 air circuit breaker. It provides a dedicated means of locking the circuit breaker in the open position, helping prevent unintended or unauthorised closing.

The KLC-S accessory is installed at the front of the Emax 2 circuit breaker and provides a mechanical locking function that does not depend on an electrical control supply. This makes it particularly useful for maintenance procedures, controlled switching operations and installations where the breaker must remain securely open until the appropriate key is used.

This version is supplied with the N.20008 key coding, distinguishing it from the N.20005, N.20006, N.20007 and N.20009 KLC-S variants available for the E1.2 frame. The 1SDA073786R1 is an ABB-engineered accessory for dependable mechanical control of Emax 2 switchgear.

Key Advantages

• Genuine ABB SACE Emax 2 mechanical accessory.
• Locks the circuit breaker securely in the open position.
• Designed specifically for the Emax 2 E1.2 frame.
• Uses the defined N.20008 key coding.
• Helps prevent unintended or unauthorised circuit-breaker closing.
• Mechanical operation requires no electrical control supply.
• Supports controlled maintenance and switchgear operating procedures.

Key Features

• KLC-S key lock.
• Mechanical circuit-breaker locking accessory.
• Locks the breaker in the open position.
• Key number: N.20008.
• Compatible with ABB SACE Emax 2 E1.2.
• Front-mounted key-locking solution.
• No electrical operating supply required.
• Part of the ABB SACE Emax 2 mechanical accessory range.

Secure Open-Position Circuit Breaker Locking

A key lock in the open position provides a physical means of keeping the circuit breaker open until the authorised operating sequence is completed. Because the function is mechanical, the locking condition remains independent of auxiliary control power and can form part of operational procedures for maintenance, isolation and controlled switchgear access.

The ABB 1SDA073786R1 provides this functionality for the Emax 2 E1.2 frame using the specific N.20008 key coding. This defined key variant enables the appropriate KLC-S lock to be selected when planning breaker locking arrangements across low-voltage switchgear installations.

Typical Applications

• ABB SACE Emax 2 E1.2 air circuit breakers.
• Circuit-breaker open-position locking.
• Controlled switchgear maintenance procedures.
• Industrial low-voltage distribution switchboards.
• Mechanical operating-control schemes.
• Commercial and infrastructure power distribution systems.