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1SDA073751R1 ABB AUX 4Q 24VDC E1.2 Auxiliary Contact
ABB 1SDA073751R1 is an AUX 4Q 24 V DC auxiliary contact block providing four changeover contacts for open and closed status signalling on compatible Emax 2 E1.2, XT7 and XT7M circuit breakers.
£203.73
Why Choose the ABB 1SDA073751R1 Emax 2 Auxiliary Contact?
The ABB 1SDA073751R1 is a four-changeover auxiliary contact assembly designed for status signalling on compatible ABB SACE Emax 2 air circuit breakers. Identified as AUX 4Q 24VDC E1.2, the accessory provides four changeover contacts for electrically indicating the open or closed state of the circuit breaker.
Designed as part of the ABB SACE Emax 2 accessory range, the 1SDA073751R1 provides reliable breaker-status feedback for switchboards, automation systems and power distribution equipment. The auxiliary contacts allow external control, monitoring and signalling circuits to respond to the operating state of the associated circuit breaker.
This version is designed for 24 V DC signalling circuits and provides four changeover contacts (4Q). It is suitable for the ABB Emax 2 E1.2 frame and is also specified by ABB for compatible XT7 and XT7M circuit breaker applications.
Key Advantages
- Genuine ABB auxiliary contact accessory for circuit breaker status signalling.
- Provides four changeover contacts (4Q) for open/closed indication.
- Designed for 24 V DC signalling applications.
- Compatible with the ABB SACE Emax 2 E1.2 air circuit breaker frame.
- Supports remote breaker status monitoring within switchboards and automation systems.
- Spring clamp electrical connection supports secure integration into control circuits.
Key Features
- ABB SACE Emax 2 electrical accessory.
- Four changeover auxiliary contacts.
- Designed for open/closed circuit breaker status signalling.
- 24 V DC contact version.
- Suitable for Emax 2 E1.2 circuit breakers.
- Also specified for compatible XT7 and XT7M applications.
- Spring clamp connection for electrical integration.
- ABB order code and Product ID 1SDA073751R1.
Reliable Open and Closed Circuit Breaker Signalling
Auxiliary contacts provide electrical status information independently of the main power contacts of a circuit breaker. When the breaker changes operating state, the auxiliary contacts change state accordingly, enabling connected control and monitoring equipment to identify whether the breaker is open or closed.
With four changeover contacts, the ABB 1SDA073751R1 can provide breaker-status signals to multiple control, indication or automation circuits. This makes it particularly useful in industrial switchboards, building power distribution systems and automated installations where reliable remote indication of circuit breaker position is required.
Typical Applications
- ABB SACE Emax 2 E1.2 air circuit breaker installations.
- Open and closed circuit breaker status indication.
- Low-voltage switchboards and switchgear.
- Remote breaker monitoring systems.
- PLC and industrial automation signalling circuits.
- Building and industrial power distribution systems.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code / Product ID | 1SDA073751R1 |
| Product type | Auxiliary contact block |
| Function | Circuit breaker open/closed status signalling |
| Contact configuration | 4 changeover contacts |
| Number of changeover contacts | 4 |
| Voltage version | 24 V DC |
| Electrical connection | Spring clamp connection |
| Suitable for | Emax 2 E1.2, XT7 and XT7M |
| Product group | Emax 2 Air Circuit Breaker accessories |
| ETIM classification | EC000041 – Auxiliary contact block |
| UNSPSC | 39121522 |
| EAN | 8015644776848 |
Frequently Asked Questions
What is the ABB 1SDA073751R1 used for?
The ABB 1SDA073751R1 is an auxiliary contact block used to provide electrical open/closed status signalling from compatible ABB circuit breakers to external control, indication and monitoring systems.
How many contacts does the ABB 1SDA073751R1 provide?
The accessory provides four changeover contacts (4Q), allowing multiple circuits to receive circuit breaker status information.
What voltage is the ABB 1SDA073751R1 designed for?
This version of the auxiliary contact assembly is designed for 24 V DC signalling applications.
Which circuit breakers are compatible with the ABB 1SDA073751R1?
The accessory is designed for the ABB SACE Emax 2 E1.2 frame and is also specified by ABB for compatible XT7 and XT7M circuit breaker applications.
What type of electrical connection does the 1SDA073751R1 use?
The ABB 1SDA073751R1 uses a spring clamp connection for connection to the associated control and signalling circuits.
ABB Emax 2 Power Distribution Accessories
ABB SACE Emax 2 auxiliary contacts provide dependable circuit breaker status signalling for switchboards, automation equipment and low-voltage power distribution systems, helping integrate breaker operation with modern control and monitoring architectures.
