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1SDA058189R1 ABB PR121/P-LI E1-E6 Electronic Trip Unit
ABB 1SDA058189R1 PR121/P-LI E1-E6 is an electronic overcurrent trip unit providing long-time and instantaneous protection for compatible ABB SACE Emax E1, E2, E3, E4 and E6 air circuit breakers.
£1,568.94
Why Choose the ABB PR121/P-LI E1-E6 Electronic Trip Unit?
The ABB PR121/P-LI E1-E6, order code 1SDA058189R1, is an electronic overcurrent protection release for ABB SACE Emax air circuit breakers. Designed for compatibility across the E1, E2, E3, E4 and E6 Emax frame families, it provides dependable electronic protection for low-voltage power-distribution applications.
The PR121/P-LI provides long-time (L) and instantaneous (I) overcurrent protection. Long-time protection is used for overload conditions, while instantaneous protection provides rapid breaker tripping in response to high-level short-circuit currents.
As part of the ABB New Emax protection system, the PR121/P platform works with the appropriate measuring chain and rating plug for the breaker configuration. This modular approach allows the protection release to be applied across multiple SACE Emax frame sizes while the associated rating plug establishes the applicable current rating.
Key Advantages
- Genuine ABB SACE Emax electronic trip unit.
- Provides long-time and instantaneous overcurrent protection.
- Compatible with E1, E2, E3, E4 and E6 SACE Emax circuit breakers.
- Electronic protection provides repeatable response to overload and short-circuit conditions.
- Works with the appropriate ABB measuring chain and rating plug.
- Suitable for maintenance, replacement and configuration of compatible Emax protection systems.
- Designed for demanding industrial and commercial low-voltage distribution applications.
Key Features
- PR121/P-LI electronic overcurrent release.
- Long-time (L) overload protection.
- Instantaneous (I) short-circuit protection.
- Suitable for ABB SACE Emax E1-E6 frames.
- Designed for use with compatible Emax measuring-chain components.
- Uses a separate compatible rating plug to establish the applicable rated current.
- Suitable for compatible fixed and withdrawable SACE Emax breaker configurations.
- IEC product configuration.
Electronic Protection for ABB SACE Emax Circuit Breakers
Electronic trip units are central to the protective operation of an air circuit breaker, evaluating current conditions and commanding the breaker to trip when defined protection thresholds are exceeded. The PR121/P-LI provides the essential long-time and instantaneous functions required to protect compatible circuits against overloads and high-level short circuits.
Because the PR121/P-LI is designed for multiple SACE Emax frame sizes, the final protection configuration depends on the compatible breaker, measuring chain and rating plug with which it is installed. This makes the unit suitable for servicing and configuring a broad range of ABB Emax low-voltage circuit breakers.
Typical Applications
- ABB SACE Emax air circuit breaker protection systems.
- Replacement or maintenance of compatible Emax electronic trip units.
- Main incoming circuit protection.
- Industrial low-voltage power distribution.
- High-current feeder and busbar protection.
- Commercial and infrastructure switchboards.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA058189R1 |
| Product type | Electronic overcurrent release / trip unit |
| Protection functions | L, I |
| Long-time protection | Overload protection |
| Instantaneous protection | Short-circuit protection |
| Suitable breaker frames | E1, E2, E3, E4, E6 |
| Suitable product class | SACE Emax |
| Configuration | Loose or configurable |
| Standard | IEC |
| Product net weight | 1 kg |
| EAN | 8015644604707 |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA058189R1?
The ABB 1SDA058189R1 is a PR121/P-LI electronic overcurrent release designed for compatible ABB SACE Emax E1, E2, E3, E4 and E6 air circuit breakers.
What protection functions does the PR121/P-LI provide?
The PR121/P-LI provides long-time (L) overload protection and instantaneous (I) short-circuit protection.
Which ABB circuit breakers are compatible with the PR121/P-LI?
The trip unit is designed for compatible ABB SACE Emax E1, E2, E3, E4 and E6 circuit breaker configurations.
Does the ABB 1SDA058189R1 have a fixed current rating?
The PR121/P-LI works with the appropriate rating plug and measuring chain, so the applicable current rating depends on the compatible Emax breaker configuration and rating plug used.
What is the EAN for ABB 1SDA058189R1?
The EAN for the ABB PR121/P-LI E1-E6 electronic trip unit is 8015644604707.
Trusted Circuit Protection from ABB
ABB SACE Emax electronic trip units provide configurable protection for low-voltage air circuit breakers, helping protect critical distribution systems against overload and short-circuit conditions across industrial, commercial and infrastructure applications.
