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1SDA038313R1 ABB Undervoltage Release 240–250 V AC/DC E1/6-T8
ABB 1SDA038313R1 is a 240–250 V AC/DC YU undervoltage release designed to provide minimum-voltage release functionality for compatible SACE Emax and SACE Tmax T circuit breakers.
£461.06
Why Choose the ABB 1SDA038313R1 Undervoltage Release?
The ABB 1SDA038313R1 is a reliable 240–250 V AC/DC undervoltage release designed for compatible ABB SACE Emax and SACE Tmax T circuit breakers. Also known as a YU minimum-voltage release, this genuine ABB accessory provides automatic circuit-breaker opening when its control supply falls below the operating threshold required to keep the release energised.
The undervoltage release is designed to enhance protection and operational control in industrial electrical distribution systems. While the release is correctly energised, the compatible circuit breaker can remain closed; if the control voltage is lost or falls sufficiently, the release acts on the breaker mechanism to initiate opening and helps prevent unintended re-closing until suitable control voltage is restored.
With a rated voltage of 240–250 V AC/DC, the 1SDA038313R1 supports both AC and DC control circuits. It is suitable for ABB E1, E2, E3, E4, E6 and T8 circuit breakers, providing a versatile minimum-voltage protection accessory for SACE Emax and SACE Tmax T installations.
Key Advantages
- Genuine ABB undervoltage release for compatible circuit breakers.
- 240–250 V AC/DC rated voltage for flexible control-system integration.
- Provides automatic breaker opening following an excessive control-voltage reduction or loss.
- Suitable for ABB E1, E2, E3, E4, E6 and T8 breaker families.
- Compatible with SACE Emax and SACE Tmax T product classes.
- Suitable for industrial switchboards, protection systems and automated power distribution.
Key Features
- ABB Accessories for Emax range.
- YU undervoltage / minimum-voltage release.
- 240–250 V AC/DC rated voltage.
- Compatible with both AC and DC control supplies.
- Provides voltage-dependent circuit-breaker release functionality.
- Suitable for E1, E2, E3, E4, E6 and T8.
- Designed for ABB SACE Emax and SACE Tmax T circuit breakers.
- Designed to applicable IEC requirements.
Reliable Undervoltage Protection for Circuit Breakers
An undervoltage release monitors the availability of its control supply and interacts directly with the circuit-breaker operating mechanism. If the voltage falls sufficiently or the supply is interrupted, the release causes the breaker to open, providing a controlled response to loss of control voltage.
The ABB 1SDA038313R1 is well suited to switchboards, industrial distribution systems and automated installations where circuit-breaker operation must depend on the presence of a suitable control supply. This functionality can help ensure equipment is disconnected during supply abnormalities and prevent uncontrolled restoration of power through the breaker.
Typical Applications
- Undervoltage protection for ABB circuit breakers.
- Industrial low-voltage switchboards.
- Power-distribution and protection systems.
- Automated electrical control installations.
- Industrial machinery power systems.
- Electrical interlocking and safety schemes.
- ABB SACE Emax and SACE Tmax T breaker installations.
Technical Specifications
| Series | Accessories for Emax |
|---|---|
| Model / order code | 1SDA038313R1 |
| Product type | Undervoltage release |
| Release designation | YU |
| Rated voltage | 240–250 V AC/DC |
| Current type | AC/DC |
| Function | Minimum-voltage / undervoltage circuit-breaker release |
| Suitable for | E1, E2, E3, E4, E6, T8 |
| Suitable product class | SACE Emax, SACE Tmax T |
| Configuration type | Loose or configurable |
| Standard | IEC |
| Product net weight | 1 kg |
| EAN | 8015644383138 |
| Customs tariff number | 85389099 |
Frequently Asked Questions
What is the ABB 1SDA038313R1 used for?
The ABB 1SDA038313R1 is an undervoltage release used with compatible ABB circuit breakers to initiate opening when its control voltage falls sufficiently or is lost.
What voltage is the ABB 1SDA038313R1 rated for?
The undervoltage release has a rated voltage of 240–250 V AC/DC.
Which circuit breakers are compatible with the 1SDA038313R1?
The accessory is suitable for ABB E1, E2, E3, E4, E6 and T8 circuit breakers within the SACE Emax and SACE Tmax T product classes.
Can the ABB 1SDA038313R1 be used with AC and DC control supplies?
Yes. The 1SDA038313R1 is specified for a 240–250 V AC/DC rated supply and is suitable for both AC and DC control circuits.
What does an undervoltage release do?
An undervoltage release acts on the circuit-breaker mechanism when its control voltage falls below the required operating level, allowing the breaker to open in response to an undervoltage or loss-of-supply condition.
Trusted ABB Circuit-Breaker Accessories
ABB SACE circuit-breaker accessories provide dependable control, protection and operating functions for industrial power-distribution systems, supporting safe integration of compatible Emax and Tmax circuit breakers into modern electrical installations.
