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1SDA073678R1 ABB YO E1.2..E6.2-XT7-XT7M 415-440 VAC Shunt Opening Release
ABB 1SDA073678R1 YO E1.2..E6.2-XT7-XT7M is a 415-440 V AC shunt opening release for remote electrical opening of compatible SACE Emax 2 E1.2 through E6.2 and Tmax XT7/XT7M circuit breakers.
£167.05
Why Choose the ABB YO E1.2..E6.2 415-440 VAC Shunt Opening Release?
The ABB YO E1.2..E6.2 415-440 VAC, order code 1SDA073678R1, is a shunt opening release designed for remote electrical opening of compatible ABB SACE Emax 2 circuit breakers. Operating from a 415–440 V AC control supply, the YO release enables the circuit breaker to be opened electrically when an appropriate external control signal is applied.
The accessory is designed for ABB SACE Emax 2 E1.2 through E6.2 circuit breakers and is also compatible with specified ABB Tmax XT7 and XT7M devices. Its broad frame compatibility makes it suitable for switchboard designs requiring remote tripping, emergency opening, automation or electrical interlocking.
As a genuine ABB electrical accessory, the 1SDA073678R1 is designed to integrate with the relevant circuit-breaker operating mechanism. The YO designation identifies it as an opening release rather than a closing release, providing a dedicated method of remotely initiating circuit-breaker opening from a 415–440 V AC control circuit.
Key Advantages
- Genuine ABB YO shunt opening release for compatible circuit breakers.
- Designed for a 415–440 V AC control supply.
- Compatible with SACE Emax 2 E1.2 through E6.2 frame sizes.
- Also suitable for compatible ABB Tmax XT7 and XT7M circuit breakers.
- Enables remote electrical opening of the associated circuit breaker.
- Suitable for emergency opening, automation and electrical interlocking systems.
- Compatible with both 50 Hz and 60 Hz AC control supplies.
- Original ABB accessory designed for integration with specified ABB circuit-breaker platforms.
Key Features
- ABB SACE Emax 2 electrical accessory.
- Accessory type: Shunt opening release.
- ABB designation: YO.
- Rated control supply voltage: 415–440 V AC.
- Rated control voltage at 50 Hz: 415–440 V AC.
- Rated control voltage at 60 Hz: 415–440 V AC.
- Actuation voltage type: AC.
- Function: Electrical opening / remote tripping.
- Built as switch-off coil: Yes.
- Built as switching-on coil: No.
- Compatible with Emax 2 E1.2, E2.2, E4.2 and E6.2 frames.
- Compatible with specified Tmax XT7 and XT7M circuit breakers.
Reliable Remote Circuit-Breaker Opening
The ABB YO shunt opening release provides an electrical means of opening a compatible circuit breaker from a remote control point. When the appropriate 415–440 V AC control command is applied, the release acts on the circuit-breaker mechanism to initiate opening, allowing the protected circuit to be disconnected without requiring local manual operation.
This functionality is particularly valuable in emergency shutdown, remote control, process automation and electrical interlocking systems. Compatibility across SACE Emax 2 frame sizes from E1.2 through E6.2 also helps standardise remote-opening solutions across switchboards incorporating different ABB air circuit breaker ratings.
Typical Applications
- Remote opening of ABB SACE Emax 2 air circuit breakers.
- Emergency shutdown and trip circuits.
- Industrial low-voltage switchboards.
- Automated power distribution systems.
- Electrical interlocking schemes.
- Building management and remote-control systems.
- Generator and transformer distribution switchgear.
- Industrial, commercial and infrastructure power distribution.
Technical Specifications
| Product designation | YO E1.2..E6.2-XT7-XT7M 415-440 VAC |
|---|---|
| Order code / MPN | 1SDA073678R1 |
| Product group | Emax2 Air Circuit Breaker |
| Product type | Shunt opening release / circuit-breaker accessory |
| Accessory designation | YO |
| Rated control supply voltage | 415–440 V AC |
| Rated control supply voltage at 50 Hz | 415–440 V AC |
| Rated control supply voltage at 60 Hz | 415–440 V AC |
| Actuation voltage type | AC |
| Opening / switch-off release | Yes |
| Closing / switching-on release | No |
| Compatible Emax 2 frames | E1.2, E2.2, E4.2 and E6.2 |
| Additional compatibility | Tmax XT7 and XT7M |
| Configuration | Loose or configurable |
| Package quantity | 1 piece |
| Package width | 105 mm |
| Package height | 55 mm |
| Package depth | 135 mm |
| Package gross weight | 0.15 kg |
| Product weight | 0.12 kg |
| EAN | 8015644776114 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA073678R1 used for?
The ABB 1SDA073678R1 is a YO shunt opening release used to initiate the electrical opening of compatible ABB circuit breakers from an external control circuit.
What is the operating voltage of the ABB YO 1SDA073678R1?
The shunt opening release is designed for a rated control supply of 415–440 V AC at both 50 Hz and 60 Hz.
Which Emax 2 circuit breakers are compatible with ABB 1SDA073678R1?
The ABB YO release is designed for SACE Emax 2 E1.2, E2.2, E4.2 and E6.2 circuit breakers. It is also specified for compatible Tmax XT7 and XT7M devices.
Is the ABB 1SDA073678R1 an opening or closing release?
The 1SDA073678R1 is a shunt opening release. It is designed as a switch-off coil and is not a switching-on or closing release.
Can the ABB YO 1SDA073678R1 be used for remote circuit-breaker tripping?
Yes. The YO shunt opening release is specifically designed to provide remote electrical opening of a compatible circuit breaker when the appropriate 415–440 V AC external control signal is applied.
Trusted ABB Circuit Breaker Accessories
ABB SACE Emax 2 electrical accessories provide integrated control functionality for low-voltage circuit breakers, supporting dependable remote operation, automation and switchboard control in industrial, commercial and infrastructure power distribution systems.
