1SDA073821R1 ABB KLP-A Castell Position Lock E2.2–E6.2 2 Key

1SDA073821R1 ABB KLP-A Castell Position Lock E2.2–E6.2 2 Key

ABB 1SDA073821R1 is a KLP-A Castell two-key mechanical position lock designed for compatible Emax 2 E2.2, E4.2 and E6.2 air circuit breakers and trapped-key interlocking applications.

SKU: 1SDA073821R1MPN: 1SDA073821R1
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List Price £138.47 ex VAT
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Manufacturer Lead Time

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Why Choose the ABB 1SDA073821R1 KLP-A Castell Position Lock?

The ABB 1SDA073821R1 is a KLP-A Castell position lock with a two-key configuration for ABB Emax 2 E2.2 through E6.2 air circuit breakers. Part of the ABB Emax 2 air circuit breaker accessory range, this mechanical locking accessory is intended for applications requiring controlled circuit breaker positioning as part of a key-operated interlocking arrangement.

Using a Castell trapped-key locking system, the KLP-A accessory can support defined switchboard operating sequences by mechanically controlling access to circuit breaker positioning. The two-key configuration is particularly suited to installations where coordinated interlocking is required between circuit breakers, switchgear sections or other compatible equipment.

The 1SDA073821R1 is designed for ABB Emax 2 E2.2 through E6.2 circuit breakers, covering the E2.2, E4.2 and E6.2 frame sizes. Its mechanical operation requires no auxiliary control voltage, providing a robust position-locking solution for industrial and commercial low-voltage power distribution systems.

Key Advantages

  • Provides mechanical key-operated circuit breaker position locking.
  • Designed for ABB Emax 2 E2.2–E6.2 circuit breakers.
  • Uses a Castell trapped-key locking arrangement.
  • Two-key configuration supports coordinated interlocking schemes.
  • Mechanical operation requires no external electrical supply or control wiring.
  • Suitable for controlled switchboard operating, isolation and maintenance procedures.

Key Features

  • ABB Emax 2 KLP-A position-locking accessory.
  • Castell key-lock system.
  • Two-key configuration.
  • Compatible with Emax 2 E2.2, E4.2 and E6.2 circuit breakers.
  • Designed for mechanical circuit breaker position control.
  • Suitable for integration into trapped-key interlocking schemes.
  • No auxiliary electrical supply required for the locking function.
  • ABB order code 1SDA073821R1.

Castell Trapped-Key Position Interlocking

Trapped-key interlocking uses a defined sequence of mechanical key release and retention to control how equipment can be operated. In low-voltage switchgear, this approach can be used to establish controlled operating sequences and prevent incompatible equipment states without relying solely on electrical interlocking logic.

The ABB 1SDA073821R1 combines KLP-A position locking with a Castell two-key arrangement for compatible Emax 2 E2.2, E4.2 and E6.2 circuit breakers. This makes it suitable for switchboards where circuit breaker positioning forms part of a wider mechanical interlocking philosophy involving multiple items of electrical equipment.

Typical Applications

  • ABB Emax 2 E2.2, E4.2 and E6.2 circuit breaker installations.
  • Castell trapped-key interlocking systems.
  • Controlled circuit breaker position-locking arrangements.
  • Industrial low-voltage switchboards and distribution systems.
  • Mechanical operating sequences involving multiple circuit breakers or switchgear sections.
  • Electrical isolation and maintenance procedures requiring controlled key access.

Technical Specifications

Series Emax 2
Product group Emax 2 Air Circuit Breaker
Model / order code 1SDA073821R1
Type KLP-A Pos.lock Castell E2.2..E6.2 2Key
Product type Mechanical circuit breaker position lock
Lock type KLP-A
Lock system Castell
Key configuration Two key
Locking function Circuit breaker position locking
Emax 2 compatibility E2.2–E6.2
Compatible frame sizes E2.2, E4.2 and E6.2
Operation Mechanical
Electrical supply required No

Frequently Asked Questions

What is the ABB 1SDA073821R1 used for?

The ABB 1SDA073821R1 is a KLP-A mechanical position-locking accessory with a Castell two-key configuration for compatible ABB Emax 2 circuit breakers.

Which ABB Emax 2 circuit breakers are compatible with the 1SDA073821R1?

The 1SDA073821R1 is designed for ABB Emax 2 E2.2 through E6.2 circuit breakers, covering the E2.2, E4.2 and E6.2 frame sizes.

What type of key-lock system does the ABB 1SDA073821R1 use?

The accessory uses a Castell trapped-key locking system and is supplied as a two-key KLP-A position-locking configuration.

Why is a two-key position lock used?

A two-key position-locking arrangement can support coordinated mechanical interlocking sequences where the availability or release of keys controls permitted equipment operations and circuit breaker positioning.

Does the ABB 1SDA073821R1 require an electrical supply?

No. The KLP-A Castell position lock is a mechanical locking accessory and does not require an electrical control supply to perform its locking function.

Trusted ABB Circuit Protection Technology

ABB Emax 2 mechanical locking accessories support controlled circuit breaker operation and structured interlocking schemes in industrial and commercial low-voltage switchboards, helping establish dependable operating, isolation and maintenance sequences.