1SDA073795R1 ABB KLC-S Key Lock Open N.20008 E2.2…E6.2

Why Choose the ABB KLC-S Key Lock Open N.20008 E2.2...E6.2?

The ABB KLC-S Key Lock Open N.20008 E2.2...E6.2, order code 1SDA073795R1, is a mechanical key-locking accessory for compatible ABB SACE Emax 2 E2.2, E4.2 and E6.2 air circuit breakers. It is designed to lock the circuit breaker mechanically in the open position, helping prevent unintended or unauthorised closing.

The KLC-S open-position lock provides a physical operating restriction that does not depend on an auxiliary electrical supply. This makes it particularly useful in low-voltage switchboards where breaker operation must be controlled during maintenance, isolation procedures or defined switching sequences.

This version uses the specific N.20008 key coding, allowing the correct lock variant to be selected for a planned key-locking scheme. As a dedicated Emax 2 accessory, the 1SDA073795R1 provides an ABB-engineered solution for controlled mechanical operation of E2.2 through E6.2 circuit breakers.

Key Advantages

• Genuine ABB SACE Emax 2 mechanical locking accessory.
• Locks the circuit breaker mechanically in the open position.
• Compatible with Emax 2 E2.2, E4.2 and E6.2 frame sizes.
• Uses the defined N.20008 key coding.
• Helps prevent unintended or unauthorised breaker closing.
• Mechanical locking function requires no electrical control supply.
• Supports controlled switching, isolation and maintenance procedures.

Key Features

• KLC-S key lock.
• Mechanical circuit-breaker locking accessory.
• Open-position locking function.
• Key number: N.20008.
• Designed for Emax 2 E2.2, E4.2 and E6.2 frames.
• Provides a physical restriction against circuit-breaker closing.
• No electrical operating supply required for the locking function.
• Part of the ABB SACE Emax 2 mechanical accessory range.

Secure Open-Position Circuit Breaker Locking

Open-position key locking provides a mechanical means of preventing a circuit breaker from being closed until the appropriate key-operated procedure has been completed. Because the locking function is mechanical, it remains independent of control voltage and can support operating procedures where positive restriction of breaker closing is required.

The ABB 1SDA073795R1 combines this function with the defined N.20008 key coding for compatible Emax 2 E2.2, E4.2 and E6.2 frames. This makes it suitable for switchgear designs where a specific key code is required as part of the installation's operating and access-control arrangement.

Typical Applications

• ABB SACE Emax 2 E2.2, E4.2 and E6.2 air circuit breakers.
• Circuit-breaker open-position locking.
• Controlled switchgear maintenance and isolation procedures.
• Industrial low-voltage distribution switchboards.
• Mechanical operating-control arrangements.
• Commercial and infrastructure power distribution systems.