1SDA073749R1 ABB YR 250 VAC/DC E2.2…E6.2 Resetting Coil

Why Choose the ABB YR 250 VAC/DC E2.2...E6.2 Resetting Coil?

The ABB YR 250 VAC/DC E2.2...E6.2, order code 1SDA073749R1, is an electrical resetting coil designed for compatible ABB SACE Emax 2 air circuit breakers. Rated for a 250 V AC/DC control supply, the YR accessory enables electrical resetting of the breaker mechanism following a trip, supporting remote and automated switchgear operation.

As part of the ABB SACE Emax 2 accessory system, this resetting coil is designed for the larger E2.2, E4.2 and E6.2 air circuit-breaker frames. It provides a dedicated electrical reset function that can be incorporated into switchboard control schemes where operators need to restore the breaker mechanism remotely rather than performing the reset locally.

The 1SDA073749R1 supports both AC and DC control systems at its specified 250 V rating. Combined with other Emax 2 electrical accessories for opening, closing, motorised spring charging and status indication, the YR resetting coil helps provide a comprehensive solution for remotely controlled low-voltage power-distribution systems.

Key Advantages

• Genuine ABB SACE Emax 2 electrical accessory.
• Provides electrical resetting of the circuit-breaker mechanism.
• 250 V AC/DC control rating supports AC and DC control architectures.
• Designed for Emax 2 E2.2, E4.2 and E6.2 breaker frames.
• Supports remote and automated switchgear operation.
• Integrates with the modular electrical accessory system of ABB Emax 2 air circuit breakers.

Key Features

• ABB YR resetting coil.
• 250 V AC/DC rated control voltage.
• Designed for ABB SACE Emax 2 air circuit breakers.
• Compatible with E2.2, E4.2 and E6.2 frame sizes.
• Provides an electrical means of resetting the breaker after a trip.
• Suitable for remote-control and switchgear automation systems.
• Works as part of the modular Emax 2 breaker accessory platform.
• ABB order code 1SDA073749R1.

Reliable Electrical Resetting for Emax 2 Circuit Breakers

After an air circuit breaker has operated following a protection trip, its mechanism must be returned to the appropriate reset condition before subsequent operation can take place. The ABB YR resetting coil provides an electrical means of performing this reset function, reducing the need for direct local intervention at the breaker.

Electrical resetting is particularly useful in automated switchboards and remotely supervised power systems. When combined with compatible Emax 2 opening and closing releases, motor operators and signalling accessories, the YR coil helps engineers implement coordinated remote operation of the circuit breaker while retaining the protection and mechanical interlocking functions of the Emax 2 platform.

Typical Applications

• ABB SACE Emax 2 E2.2, E4.2 and E6.2 air circuit breakers.
• Remote circuit-breaker reset systems.
• Industrial low-voltage switchboards.
• Automated power-distribution systems.
• Generator and critical-power switchgear.
• Commercial and infrastructure electrical distribution.