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1SDA073758R1 ABB AUX 15Q 400V E1.2 Auxiliary Contacts
ABB 1SDA073758R1 is an AUX 15Q 400 V auxiliary contact assembly providing 15 change-over contacts for open and closed status signalling on Emax 2 E1.2 air circuit breakers.
£256.73
Why Choose the ABB 1SDA073758R1 AUX 15Q 400V E1.2 Auxiliary Contacts?
The ABB 1SDA073758R1 is an AUX 15Q 400 V auxiliary contact assembly designed for ABB Emax 2 E1.2 air circuit breakers. Part of the advanced ABB Emax 2 air circuit breaker accessory range, it provides additional potential-free contacts for signalling and monitoring the open or closed status of the circuit breaker within electrical control and automation systems.
The AUX contacts change state when the circuit breaker changes operating position, allowing breaker status information to be transmitted to control circuits, indication equipment, PLCs and supervisory systems. With 15 change-over contacts, the 1SDA073758R1 provides extensive signalling capacity for applications requiring multiple independent breaker-status outputs.
Designed specifically for the ABB Emax 2 E1.2 frame, this version is rated for applications up to 400 V. The AUX 15Q assembly is side-mounted and uses spring-clamp electrical connections. ABB specifies that the AUX 15Q accessory is not compatible with mechanical locks on compartment doors or mechanical interlocks, and an appropriate E1.2 mounting plate is also required according to the breaker installation configuration.
Key Advantages
- Provides 15 auxiliary change-over contacts for comprehensive breaker-status signalling.
- Designed specifically for ABB Emax 2 E1.2 air circuit breakers.
- 400 V contact version for industrial control and signalling applications.
- Potential-free contacts provide flexible integration with external control and monitoring circuits.
- Suitable for connection to PLCs, indication systems and switchboard automation equipment.
- Spring-clamp connections support secure and practical control wiring.
Key Features
- ABB Emax 2 AUX 15Q auxiliary contact assembly.
- 15 change-over contacts.
- 400 V version.
- Compatible with Emax 2 E1.2 circuit breakers.
- Provides open/closed circuit breaker status signalling.
- Spring-clamp electrical connection.
- Side-mounted accessory design.
- ABB order code 1SDA073758R1.
Reliable Circuit Breaker Status Signalling
Auxiliary contacts provide electrical indication of a circuit breaker's operating state by changing contact position when the breaker opens or closes. These potential-free contacts can be incorporated into external control, indication and automation circuits, allowing switchboard operators and control systems to monitor breaker status remotely.
The ABB 1SDA073758R1 expands the signalling capability of an Emax 2 E1.2 installation with 15 change-over contacts. This makes it particularly useful for complex switchboards where breaker status needs to be distributed simultaneously to multiple monitoring, interlocking, indication or automation circuits.
Typical Applications
- ABB Emax 2 E1.2 air circuit breaker installations.
- Open and closed circuit breaker status signalling.
- Industrial low-voltage switchboards.
- PLC and automation system status inputs.
- Remote breaker monitoring and indication systems.
- Commercial and industrial power distribution panels.
Technical Specifications
| Series | Emax 2 |
|---|---|
| Product group | Emax 2 Air Circuit Breaker |
| Model / order code | 1SDA073758R1 |
| Type | AUX 15Q 400V E1.2 |
| Product type | Open/closed auxiliary contact assembly |
| Number of change-over contacts | 15 |
| Voltage version | 400 V |
| Emax 2 compatibility | E1.2 |
| Electrical connection | Spring-clamp connection |
| Mounting method | Side mounting |
| Function | Circuit breaker open/closed status signalling |
| Mechanical interlock compatibility | Not compatible |
| Compartment door mechanical lock compatibility | Not compatible |
Frequently Asked Questions
What is the ABB 1SDA073758R1 used for?
The ABB 1SDA073758R1 is an AUX 15Q auxiliary contact assembly used to provide additional open/closed status signalling contacts for ABB Emax 2 E1.2 air circuit breakers.
How many auxiliary contacts does the ABB 1SDA073758R1 provide?
The accessory provides 15 change-over contacts, allowing circuit breaker status information to be used by multiple external control, indication and monitoring circuits.
Which ABB circuit breaker is compatible with the 1SDA073758R1?
The 1SDA073758R1 is designed specifically for the ABB Emax 2 E1.2 air circuit breaker frame.
What voltage version is the ABB 1SDA073758R1?
This AUX 15Q accessory is the 400 V version for the ABB Emax 2 E1.2 circuit breaker.
Can the AUX 15Q be used with mechanical interlocks?
No. ABB specifies that the AUX 15Q accessory is not compatible with mechanical locks on compartment doors or mechanical interlocks. An appropriate mounting plate is also required for E1.2 installations according to the breaker configuration.
Trusted ABB Circuit Protection Technology
ABB Emax 2 auxiliary contacts provide dependable circuit breaker status signalling for industrial and commercial switchboards, supporting integration with control, indication and automation systems in modern low-voltage power distribution installations.
