Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA133771R1 ABB UVD E1.3–E6.3 24–30 V DC Electronic Time-Delay Device
ABB 1SDA133771R1 is a 24–30 V DC electronic time-delay device for compatible SACE Emax 3 E1.3–E6.3 undervoltage releases, designed to delay breaker operation during undervoltage conditions.
£474.10
Why Choose the ABB 1SDA133771R1 UVD Electronic Time-Delay Device?
The ABB 1SDA133771R1 is an electronic time-delay device for an undervoltage release (UVD) designed for ABB SACE Emax 3 low-voltage power circuit breakers. Compatible with E1.3 through E6.3 frame sizes, it is used with an appropriate undervoltage release to introduce a controlled delay in undervoltage tripping.
The UVD accessory helps prevent unnecessary circuit-breaker operation caused by brief voltage reductions or transient disturbances. By delaying operation of the associated undervoltage release, it allows the installation to tolerate short-duration voltage events while retaining undervoltage protection when the abnormal condition persists.
ABB order code 1SDA133771R1 is the 24–30 V DC version of the Emax 3 UVD electronic time-delay device. It must be paired with an undervoltage release coil of the corresponding voltage, providing a coordinated control solution for compatible ABB SACE Emax 3 circuit breakers.
Key Advantages
- Purpose-designed electronic time-delay device for ABB Emax 3 undervoltage releases.
- Compatible with E1.3, E2.3, E4.3 and E6.3 circuit-breaker frames.
- 24–30 V DC operating voltage range.
- Helps prevent unwanted breaker opening during brief voltage disturbances.
- Allows delayed operation of the associated undervoltage release.
- Designed for coordinated use with an undervoltage coil of the same voltage.
Key Features
- ABB UVD electronic time-delay device.
- ABB order code 1SDA133771R1.
- Designed for SACE Emax 3 E1.3–E6.3.
- 24–30 V DC rated control voltage.
- Provides electronic delay functionality for an undervoltage release.
- Used with a compatible YU undervoltage release.
- Matching voltage between the UVD and undervoltage coil is required.
- Suitable for low-voltage switchgear control and protection applications.
Controlled Undervoltage Release Operation
An undervoltage release is used to open a circuit breaker when its control voltage falls below the required operating level. In installations where short voltage dips can occur, immediate operation may result in unnecessary interruption of the electrical supply. An electronic time-delay device can introduce a delay so that transient voltage disturbances do not immediately cause the associated undervoltage release to operate.
The ABB 1SDA133771R1 provides this time-delay functionality within compatible SACE Emax 3 E1.3–E6.3 installations. ABB specifies that the electronic time-delay device must be used with an undervoltage coil having the same voltage, ensuring the UVD and release are correctly matched within the breaker control system.
Typical Applications
- ABB SACE Emax 3 air circuit-breaker installations.
- Undervoltage release control circuits.
- Low-voltage switchboards and distribution panels.
- Industrial electrical distribution systems.
- Main incomer and feeder circuit-breaker control.
- Applications requiring tolerance of brief voltage dips before undervoltage tripping.
Technical Specifications
| Product group | Emax 3 |
|---|---|
| Series | SACE Emax 3 |
| Order code | 1SDA133771R1 |
| MPN | 1SDA133771R1 |
| Product type | Electronic time-delay device for undervoltage release |
| Compatible circuit breakers | ABB SACE Emax 3 |
| Compatible frame sizes | E1.3, E2.3, E4.3 and E6.3 |
| Rated voltage | 24–30 V DC |
| Function | Delayed operation of undervoltage release |
| Associated accessory | Undervoltage release coil with matching voltage |
| US / Canada part number | K3A-ELEC-UVDD |
Frequently Asked Questions
What is the ABB 1SDA133771R1 used for?
The ABB 1SDA133771R1 is an electronic time-delay device for an undervoltage release, allowing delayed undervoltage operation on compatible ABB SACE Emax 3 circuit breakers.
Which ABB circuit breakers are compatible with the 1SDA133771R1?
The UVD is designed for ABB SACE Emax 3 E1.3, E2.3, E4.3 and E6.3 circuit-breaker frames.
What is the operating voltage of the ABB 1SDA133771R1?
This version of the UVD electronic time-delay device is rated for 24–30 V DC.
Does the UVD need to be matched to the undervoltage release?
Yes. ABB specifies that the electronic time-delay device must be used with an undervoltage coil of the same voltage.
Why use an electronic time-delay device with an undervoltage release?
A time-delay device allows brief voltage reductions or transient disturbances to pass without immediately operating the undervoltage release, helping avoid unnecessary circuit-breaker opening while maintaining undervoltage protection.
ABB Emax 3 Control Accessories
ABB SACE Emax 3 control accessories provide configurable solutions for circuit-breaker operation and protection, including undervoltage releases and electronic time-delay devices for dependable control in low-voltage electrical distribution systems.
