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1SDA073695R1 ABB YU E1.2..E6.2-XT7-XT7M 30 VAC/DC Undervoltage Release
ABB 1SDA073695R1 YU E1.2..E6.2-XT7-XT7M is a 30 V AC/DC undervoltage release for compatible SACE Emax 2 E1.2 through E6.2 and Tmax XT7/XT7M circuit breakers.
£167.05
Why Choose the ABB YU E1.2..E6.2 30 VAC/DC Undervoltage Release?
The ABB YU E1.2..E6.2 30 VAC/DC, order code 1SDA073695R1, is a 30 V AC/DC undervoltage release designed for compatible ABB SACE Emax 2 circuit breakers. The YU accessory provides fail-safe undervoltage functionality by acting on the circuit-breaker operating mechanism when its control supply falls below the required operating level.
The accessory is designed for ABB SACE Emax 2 E1.2 through E6.2 frame sizes and is also specified for compatible ABB Tmax XT7 and XT7M circuit breakers. Its 30 V AC/DC rating allows operation from either AC or DC control circuits, with the AC rating applicable at both 50 Hz and 60 Hz.
Unlike a shunt opening release, which operates in response to an applied trip command, the YU undervoltage release is intended for applications where circuit-breaker operation depends on the presence of the required control voltage. This makes the ABB 1SDA073695R1 suitable for fail-safe control, emergency systems and installations where loss or significant reduction of control voltage must result in breaker opening.
Key Advantages
- Genuine ABB YU undervoltage release for compatible circuit breakers.
- Rated for a 30 V AC/DC control supply.
- Supports 30 V AC at 50 Hz and 60 Hz.
- Supports 30 V DC control circuits.
- Compatible with SACE Emax 2 E1.2 through E6.2 frame sizes.
- Also suitable for compatible ABB Tmax XT7 and XT7M circuit breakers.
- Provides fail-safe undervoltage functionality for circuit-breaker control systems.
- Can be combined with a compatible ABB electronic time-delay device where delayed undervoltage operation is required.
Key Features
- ABB SACE Emax 2 electrical accessory.
- Accessory type: Undervoltage release / undervoltage coil.
- ABB designation: YU.
- Rated control supply voltage: 30 V AC/DC.
- AC control frequency: 50/60 Hz.
- Actuation voltage type: AC/DC.
- Delayed operation: No.
- Suitable for power circuit breakers: Yes.
- Compatible with Emax 2 E1.2, E2.2, E4.2 and E6.2 frames.
- Compatible with specified Tmax XT7 and XT7M circuit breakers.
- Designed for undervoltage and fail-safe circuit-breaker control applications.
- ABB US/Canada part number: ZEAUB.
Fail-Safe Undervoltage Control for ABB Circuit Breakers
The ABB YU undervoltage release is designed to provide circuit-breaker control based on the availability of its control supply. In a correctly engineered installation, loss or sufficient reduction of the required control voltage causes the release to act on the breaker mechanism, making it particularly useful where a loss of control power must result in a safe circuit condition.
The 30 V AC/DC design provides flexibility for both alternating-current and direct-current control systems. For applications requiring intentional delay during temporary voltage disturbances, ABB also provides compatible electronic time-delay devices for YU undervoltage coils, allowing the control arrangement to be adapted to the requirements of the electrical installation.
Typical Applications
- Undervoltage control of ABB SACE Emax 2 air circuit breakers.
- Fail-safe circuit-breaker opening systems.
- Emergency shutdown and safety control circuits.
- Industrial low-voltage switchboards.
- Automated power distribution systems.
- Generator and transformer distribution switchgear.
- Control systems requiring breaker response to loss of control voltage.
- Industrial, commercial and infrastructure power distribution.
Technical Specifications
| Product designation | YU E1.2..E6.2-XT7-XT7M 30 VAC/DC |
|---|---|
| Order code / MPN | 1SDA073695R1 |
| Product group | Emax2 Air Circuit Breaker |
| Product type | Undervoltage release / circuit-breaker accessory |
| Accessory designation | YU |
| Rated voltage (Ur) | 30 V |
| Rated control supply voltage AC at 50 Hz | 30 V |
| Rated control supply voltage AC at 60 Hz | 30 V |
| Rated control supply voltage DC | 30 V |
| Actuation voltage type | AC/DC |
| Delayed | No |
| Suitable for power circuit breaker | Yes |
| Suitable for off-load switch | No |
| Suitable for motor protection switch | No |
| Suitable for overload relay | No |
| Compatible Emax 2 frames | E1.2, E2.2, E4.2 and E6.2 |
| Additional compatibility | Tmax XT7 and XT7M |
| Configuration | Loose or configurable |
| Order multiple | 1 piece |
| US/Canada part number | ZEAUB |
| EAN | 8015644776282 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA073695R1 used for?
The ABB 1SDA073695R1 is a YU undervoltage release designed for compatible ABB circuit breakers. It provides fail-safe control by allowing the breaker mechanism to respond when the undervoltage release loses or experiences a sufficient reduction in its control supply.
What is the control voltage of the ABB YU 1SDA073695R1?
The ABB YU 1SDA073695R1 is rated for a 30 V AC/DC control supply. Its AC rating applies at both 50 Hz and 60 Hz.
Which Emax 2 circuit breakers are compatible with ABB 1SDA073695R1?
The YU 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 circuit breakers.
What is the difference between an ABB YU and YO release?
The YU is an undervoltage release used for fail-safe operation associated with the control supply voltage, whereas the YO is a shunt opening release that initiates circuit-breaker opening when an external trip command is applied.
Is the ABB 1SDA073695R1 a delayed undervoltage release?
No. The ABB 1SDA073695R1 is specified as a non-delayed undervoltage release. Where an intentional delay is required, ABB provides compatible electronic time-delay devices for YU undervoltage coils.
Trusted ABB Circuit Breaker Accessories
ABB SACE Emax 2 electrical accessories provide integrated control and protection functionality for low-voltage circuit breakers, supporting dependable fail-safe operation, automation and switchboard control in industrial, commercial and infrastructure power distribution systems.
