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1SDA073750R1 ABB AUX 4Q 400V E1.2 Auxiliary Contacts
ABB 1SDA073750R1 AUX 4Q 400 V auxiliary contact set providing four Q contacts for open and closed position signalling of SACE Emax 2 E1.2 air circuit breakers.
£204.09
Why Choose the ABB AUX 4Q 400V E1.2 Auxiliary Contacts?
The ABB AUX 4Q 400V E1.2, order code 1SDA073750R1, is an auxiliary contact set designed for ABB SACE Emax 2 E1.2 air circuit breakers. The accessory provides four Q auxiliary contacts for electrical signalling of the circuit breaker's open or closed position to external control, indication and automation circuits.
As part of the ABB SACE Emax 2 accessory system, the AUX 4Q assembly allows breaker position information to be incorporated into switchboard control schemes, PLC systems, annunciation circuits and supervisory equipment. The contacts change state with the circuit breaker, providing remote status information without relying solely on the mechanical position indicator at the breaker.
The 1SDA073750R1 is specifically designed for the Emax 2 E1.2 frame and is identified as the 400 V version of the four-contact Q auxiliary assembly. It is well suited to industrial and infrastructure switchboards requiring dependable electrical feedback of circuit-breaker operating status.
Key Advantages
- Genuine ABB SACE Emax 2 auxiliary contact accessory.
- Provides four Q auxiliary contacts for circuit-breaker status signalling.
- Designed specifically for the Emax 2 E1.2 air circuit-breaker frame.
- 400 V version for integration into compatible signalling and control circuits.
- Provides remote indication of the open and closed breaker states.
- Supports integration with PLCs, switchboard controls, alarms and supervisory systems.
Key Features
- ABB AUX 4Q auxiliary contact set.
- Four Q position-signalling contacts.
- Designed for ABB SACE Emax 2 E1.2 circuit breakers.
- 400 V accessory version.
- Provides electrical indication of circuit-breaker open/closed position.
- Suitable for control, interlocking, indication and automation circuits.
- Integrates with the modular Emax 2 electrical accessory platform.
- ABB order code 1SDA073750R1.
Reliable Circuit-Breaker Position Signalling
Auxiliary contacts provide an electrical representation of a circuit breaker's mechanical operating state. As the Emax 2 breaker changes between open and closed positions, the associated Q contacts change state, allowing external circuits to determine the breaker position and use that information for indication, interlocking or control purposes.
The four-contact configuration gives system designers multiple signalling points for integration into different parts of a switchboard control system. This can support local indication lamps, PLC inputs, remote monitoring, electrical interlocks and other automation functions while maintaining direct association with the operating state of the E1.2 circuit breaker.
Typical Applications
- ABB SACE Emax 2 E1.2 air circuit breakers.
- Remote open/closed breaker status indication.
- Industrial low-voltage switchboards.
- PLC and automation-system status inputs.
- Electrical interlocking and control circuits.
- Generator, infrastructure and critical-power distribution systems.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code | 1SDA073750R1 |
| Product type | Circuit-breaker auxiliary contact set |
| Accessory designation | AUX 4Q |
| Number of auxiliary contacts | 4 |
| Contact designation | Q |
| Voltage version | 400 V |
| Compatible breaker frame | E1.2 |
| Compatible product family | ABB SACE Emax 2 |
| Function | Electrical indication of circuit-breaker open/closed position |
Frequently Asked Questions
What is the ABB 1SDA073750R1 used for?
The ABB 1SDA073750R1 is an AUX 4Q auxiliary contact set used to provide electrical indication of the open or closed position of a compatible ABB SACE Emax 2 E1.2 circuit breaker.
How many auxiliary contacts does the ABB AUX 4Q provide?
The accessory provides four Q auxiliary contacts for circuit-breaker position signalling.
Which Emax 2 circuit breaker is compatible with ABB 1SDA073750R1?
The 1SDA073750R1 auxiliary contact assembly is designed for the ABB SACE Emax 2 E1.2 circuit-breaker frame.
What does the Q designation mean on this ABB accessory?
The Q auxiliary contacts provide electrical signalling associated with the circuit breaker's open and closed operating positions.
Where can the AUX 4Q contact signals be used?
The contact signals can be incorporated into control panels, PLC inputs, indication circuits, electrical interlocks and remote monitoring systems to communicate the operating position of the circuit breaker.
Trusted Status Signalling for ABB SACE Emax 2
ABB SACE Emax 2 auxiliary contacts provide dependable electrical feedback of circuit-breaker operating status, supporting indication, interlocking, automation and remote supervision throughout modern low-voltage power-distribution systems.
