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1SDA073777R1 ABB S51 24V E1.2 Trip Signalling Contact
ABB 1SDA073777R1 is an S51 low-voltage DC trip signalling contact with one changeover contact for indicating operation of the Ekip protection trip unit on compatible Emax 2 E1.2 circuit breakers.
£44.57
Why Choose the ABB 1SDA073777R1 Emax 2 S51 Trip Signalling Contact?
The ABB 1SDA073777R1 is an S51 electrical trip signalling contact designed for ABB SACE Emax 2 E1.2 air circuit breakers equipped with an Ekip protection trip unit. Identified by ABB as S51 24V E1.2, this accessory provides an electrical indication when the Ekip protection trip unit has caused the circuit breaker to trip.
As part of the ABB SACE Emax 2 accessory range, the S51 contact enables trip events to be communicated to external indication, monitoring and automation equipment. This makes it useful in switchboards and power distribution systems where operators or supervisory systems need remote confirmation that a protection trip has occurred.
This version is intended for low-voltage DC signalling below 24 V DC and provides one changeover contact. The 1SDA073777R1 is specified for the Emax 2 E1.2 platform and is also associated with compatible ABB XT7 and XT7M circuit breaker applications.
Key Advantages
- Genuine ABB SACE Emax 2 S51 trip signalling accessory.
- Provides electrical indication following operation of the Ekip protection trip unit.
- Designed for low-voltage DC signalling below 24 V DC.
- Provides one changeover contact for integration with external signalling circuits.
- Suitable for the ABB SACE Emax 2 E1.2 air circuit breaker platform.
- Supports remote trip indication, switchboard monitoring and industrial automation systems.
Key Features
- ABB SACE Emax 2 electrical accessory.
- S51 trip indication contact.
- Signals tripping initiated by the Ekip protection trip unit.
- Low-voltage DC version below 24 V DC.
- One changeover contact.
- Suitable for Emax 2 E1.2 circuit breaker applications.
- Also specified for compatible XT7 and XT7M applications.
- Spring clamp electrical connection.
- ABB order code and Product ID 1SDA073777R1.
Reliable Ekip Protection Trip Indication
The S51 contact provides electrical signalling when the circuit breaker is opened as a result of operation by its Ekip protection trip unit. This allows a protection-initiated trip to be communicated to external equipment, helping operators and automated systems distinguish a protective trip event and respond appropriately.
With its single changeover contact and low-voltage DC signalling capability, the ABB 1SDA073777R1 can be integrated into control panels, alarm circuits, PLC inputs and supervisory systems. This supports faster fault identification and effective remote monitoring in critical low-voltage power distribution installations.
Typical Applications
- ABB SACE Emax 2 E1.2 air circuit breaker installations.
- Ekip protection trip indication.
- Low-voltage switchboards and switchgear assemblies.
- Remote circuit breaker trip monitoring.
- PLC and industrial automation signalling circuits.
- Alarm, supervisory control and power management systems.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code / Product ID | 1SDA073777R1 |
| Product type | Trip signalling contact |
| Function | Electrical indication of Ekip protection trip unit tripping |
| Signalling voltage | < 24 V DC |
| Contact configuration | 1 changeover contact |
| Number of changeover contacts | 1 |
| Electrical connection | Spring clamp connection |
| Suitable for | Emax 2 E1.2, XT7 and XT7M |
| Product group | Emax 2 Air Circuit Breaker accessories |
| ETIM classification | EC001025 – Trip contact |
| EAN / GTIN | 8015644777104 |
| Net weight | 0.2 kg |
Frequently Asked Questions
What is the ABB 1SDA073777R1 used for?
The ABB 1SDA073777R1 is an S51 trip signalling contact used to provide electrical indication when the Ekip protection trip unit has caused a compatible circuit breaker to trip.
What does S51 mean on the ABB 1SDA073777R1?
S51 identifies the contact used for signalling tripping of the Ekip protection trip unit, allowing a protection trip event to be communicated to external monitoring or control equipment.
What signalling voltage is the ABB 1SDA073777R1 designed for?
This S51 version is intended for low-voltage DC signalling below 24 V DC.
How many contacts does the ABB 1SDA073777R1 provide?
The accessory provides one changeover contact for connection to an external indication, monitoring or automation circuit.
Which circuit breakers are compatible with the ABB 1SDA073777R1?
The accessory is specified for the ABB SACE Emax 2 E1.2 platform and is also associated with compatible ABB XT7 and XT7M circuit breaker applications.
ABB Emax 2 Power Distribution Accessories
ABB SACE Emax 2 S51 signalling contacts provide dependable electrical indication of protection trip events, supporting fault monitoring, alarm signalling and integration of air circuit breakers with modern industrial power management and automation systems.
