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1SDA073753R1 ABB AUX 4Q 400V E2.2…E6.2 Auxiliary Contact Block
ABB 1SDA073753R1 is a 400 V AC 4Q auxiliary contact block with four changeover contacts for open and closed status signalling on compatible ABB Emax 2 E2.2, E4.2 and E6.2 air circuit breakers.
£204.09
Why Choose the ABB 1SDA073753R1 AUX 4Q Auxiliary Contact Block?
The ABB 1SDA073753R1 is a 4Q auxiliary contact block designed for compatible ABB Emax 2 E2.2, E4.2 and E6.2 air circuit breakers. It provides four changeover contacts for signalling the open or closed status of the circuit breaker, allowing breaker position information to be incorporated into control, indication and automation circuits.
As part of the ABB Emax 2 electrical accessory range, the AUX contact block uses potential-free contacts that change state when the circuit breaker changes between open and closed positions. This enables reliable status feedback to control panels, PLC systems, signalling equipment and other suitable switchgear monitoring systems.
The 1SDA073753R1 is specified as AUX 4Q 400 V E2.2...E6.2 and provides four changeover auxiliary contacts suitable for applications up to 400 V AC. It is designed for ABB Emax 2 E2.2, E4.2 and E6.2 breaker frames and is supplied as a loose or configurable accessory.
Key Advantages
- Dedicated ABB Emax 2 open/closed auxiliary contact block.
- Provides four changeover contacts (4Q / 4 CO).
- Rated for applications up to 400 V AC.
- Compatible with E2.2, E4.2 and E6.2 Emax 2 circuit breakers.
- Provides breaker open/closed status feedback for control and signalling systems.
- Potential-free contacts simplify integration with suitable monitoring and automation circuits.
Key Features
- ABB Emax 2 AUX contact accessory.
- 4Q configuration with four changeover contacts.
- 400 V AC contact version.
- Designed for E2.2 through E6.2 breaker frames.
- Contacts change state according to the circuit breaker's open/closed position.
- Suitable for remote indication, interlocking, control and automation signalling.
- IEC accessory configuration.
- ABB order code 1SDA073753R1.
Reliable Open and Closed Status Signalling
Auxiliary contacts provide an electrical indication of a circuit breaker's mechanical operating state. When the Emax 2 breaker changes between open and closed positions, the corresponding potential-free auxiliary contacts change state, allowing this information to be transmitted to external indication, control or automation equipment.
With four changeover contacts and a 400 V AC rating, the ABB 1SDA073753R1 provides multiple signalling channels for compatible Emax 2 E2.2, E4.2 and E6.2 installations. This makes it useful in switchboards requiring breaker status indication, control-system feedback, electrical interlocking or integration with supervisory systems.
Typical Applications
- ABB Emax 2 E2.2, E4.2 and E6.2 air circuit breaker installations.
- Circuit breaker open/closed status indication.
- Industrial low-voltage switchboards.
- PLC and automation system breaker-status feedback.
- Electrical interlocking and control circuits.
- Power distribution monitoring and supervisory systems.
Technical Specifications
| Series | Emax 2 |
|---|---|
| Order code | 1SDA073753R1 |
| Product type | Auxiliary contact block |
| Accessory designation | AUX 4Q |
| Contact function | Circuit breaker open/closed status signalling |
| Number of changeover contacts | 4 |
| Contact configuration | 4Q / 4 CO (SPDT) |
| Rated operating voltage | 400 V AC |
| Compatible breaker frames | E2.2, E4.2 and E6.2 |
| Compatible series | ABB Emax 2 Air Circuit Breakers |
| Configuration type | Loose or configurable |
| Standard | IEC |
| EAN | 8015644776862 |
| ABB product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA073753R1 used for?
The ABB 1SDA073753R1 is a 4Q auxiliary contact block used to provide electrical indication of the open and closed status of compatible ABB Emax 2 air circuit breakers.
How many contacts does the ABB 1SDA073753R1 provide?
The accessory provides four changeover contacts, also described as a 4Q or 4 CO configuration.
What voltage rating does the ABB 1SDA073753R1 have?
This version of the auxiliary contact block is specified for applications up to 400 V AC.
Which ABB circuit breakers are compatible with the 1SDA073753R1?
The 1SDA073753R1 is designed for ABB Emax 2 E2.2, E4.2 and E6.2 air circuit breakers.
What information can the AUX 4Q contacts provide?
The contacts change state when the circuit breaker changes position, allowing its open or closed status to be communicated to suitable indication, control, interlocking or automation circuits.
Trusted by Electrical and Switchgear Professionals Worldwide
ABB Emax 2 air circuit breakers and their dedicated auxiliary accessories provide an integrated platform for low-voltage power distribution, helping switchboard builders and electrical engineers implement dependable breaker status signalling, control, interlocking and automation.
