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1SDA073789R1 ABB KLA Key Lock Open Kirk E1.2
ABB 1SDA073789R1 is a KLA Kirk key-lock accessory designed to mechanically lock a compatible ABB Emax 2 E1.2 air circuit breaker in the open position.
£12.04
Why Choose the ABB 1SDA073789R1 KLA Kirk Key Lock?
The ABB 1SDA073789R1 is a KLA Kirk key lock accessory designed for the ABB Emax 2 E1.2 air circuit breaker. It provides a mechanical key-locking function for locking the circuit breaker in the open position, helping prevent unauthorised or unintended closing of the breaker.
Key locking is particularly useful in switchgear installations where operating sequences, maintenance procedures or electrical safety arrangements require a circuit breaker to remain mechanically secured in the open state. The Kirk key-lock format also supports applications where key-controlled access and mechanical interlocking form part of the switchboard operating philosophy.
ABB specifies the 1SDA073789R1 as KLA Key lock open Kirk E1.2. It is a dedicated mechanical locking accessory for the ABB Emax 2 E1.2 frame, providing controlled open-position locking for industrial low-voltage power distribution and switchgear applications.
Key Advantages
- Dedicated Kirk key lock for ABB Emax 2 E1.2.
- Provides mechanical locking of the circuit breaker in the open position.
- Helps prevent unintended or unauthorised breaker closing.
- Supports key-controlled switchgear operating procedures.
- Suitable for mechanical interlocking and maintenance safety arrangements.
- Purpose-designed ABB accessory for integration with the Emax 2 platform.
Key Features
- ABB Emax 2 KLA accessory.
- Kirk-type key lock.
- Open-position circuit breaker locking function.
- Designed specifically for the Emax 2 E1.2 breaker frame.
- Mechanical locking arrangement independent of electrical control commands.
- Suitable for controlled access and switchgear interlocking applications.
- Supports safer maintenance and operating procedures.
- ABB order code 1SDA073789R1.
Mechanical Open-Position Locking for Controlled Switchgear Operation
A circuit breaker key lock provides a physical means of preventing the breaker from being closed while the locking condition is active. This mechanical approach is useful where maintenance procedures, operational sequences or interlocking schemes require positive control over when a breaker can be returned to service.
The ABB 1SDA073789R1 provides this functionality for the Emax 2 E1.2 using a Kirk key-lock arrangement. By securing the breaker in the open position, the accessory can form part of a controlled switchgear operating sequence and helps prevent an unintended closing operation until the required key-lock conditions have been satisfied.
Typical Applications
- ABB Emax 2 E1.2 air circuit breaker installations.
- Circuit breaker open-position locking.
- Kirk key mechanical interlocking systems.
- Industrial low-voltage switchboards.
- Maintenance isolation and controlled operating procedures.
- Power distribution systems requiring key-controlled breaker operation.
Technical Specifications
| Series | Emax 2 |
|---|---|
| Order code | 1SDA073789R1 |
| Product type | Circuit breaker key lock |
| Accessory designation | KLA |
| Lock type | Kirk key lock |
| Locking function | Circuit breaker locked open |
| Compatible breaker frame | E1.2 |
| Compatible series | ABB Emax 2 Air Circuit Breakers |
| Operating principle | Mechanical key locking |
| Application | Open-position locking and mechanical interlocking |
| ABB product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA073789R1 used for?
The ABB 1SDA073789R1 is a Kirk key-lock accessory used to mechanically lock an ABB Emax 2 E1.2 air circuit breaker in the open position.
Which ABB circuit breaker is compatible with the 1SDA073789R1?
The 1SDA073789R1 is designed specifically for the ABB Emax 2 E1.2 air circuit breaker frame.
What does KLA mean on the ABB 1SDA073789R1?
KLA identifies the key-lock accessory used to provide mechanical locking of the compatible Emax 2 circuit breaker in the open position.
What type of key lock does the ABB 1SDA073789R1 use?
The 1SDA073789R1 is specified with a Kirk-type key lock for controlled mechanical locking and interlocking applications.
Does the ABB 1SDA073789R1 prevent the circuit breaker from closing?
Yes. Its purpose is to lock the compatible Emax 2 E1.2 breaker in the open position, preventing closing while the mechanical key-lock condition is active.
Can the ABB 1SDA073789R1 be used in an interlocking system?
Yes. The Kirk key-lock arrangement is suitable for switchgear applications where key-controlled mechanical interlocking is used to enforce a defined operating sequence.
Trusted by Electrical and Switchgear Professionals Worldwide
ABB Emax 2 air circuit breakers and their dedicated mechanical locking accessories provide an integrated platform for low-voltage power distribution, helping switchboard builders and electrical engineers implement controlled breaker operation, mechanical interlocking and dependable isolation procedures.
