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1SDA055689R1 ABB E1B 1600 PR121/P-LSI 1600 A 4-Pole Withdrawable Air Circuit Breaker
ABB 1SDA055689R1 is a SACE Emax E1B 1600 A four-pole withdrawable air circuit breaker with a PR121/P-LSI electronic overcurrent release for low-voltage power distribution protection.
£11,637.74
Why Choose the ABB 1SDA055689R1 E1B 1600 Air Circuit Breaker?
The ABB 1SDA055689R1 is a high-performance SACE Emax E1B 1600 air circuit breaker designed for dependable protection and switching in low-voltage power distribution systems. Rated at 1600 A, this four-pole withdrawable circuit breaker incorporates an advanced PR121/P-LSI electronic overcurrent release for comprehensive protection against overload and short-circuit conditions.
As part of the proven ABB SACE Emax range, the E1B 1600 combines high-current switching capability with configurable electronic protection for demanding industrial and commercial installations. The PR121/P-LSI trip unit provides long-time, short-time and instantaneous protection functions, allowing the breaker to respond effectively to different overcurrent and short-circuit conditions.
This configuration features a four-pole withdrawable design with a rated uninterrupted current of 1600 A. The E1B performance level provides an ultimate short-circuit breaking capacity of 42 kA across its specified AC operating-voltage range up to 690 V, together with a short-time withstand current of 42 kA for 1 s, making it suitable for substantial low-voltage distribution systems.
Key Advantages
- Heavy-duty 1600 A SACE Emax air circuit breaker for low-voltage power distribution.
- Four-pole configuration for comprehensive switching across four conductors.
- Withdrawable execution supports convenient switchboard servicing and maintenance.
- Advanced PR121/P-LSI electronic overcurrent release.
- LSI functionality provides long-time, short-time and instantaneous protection.
- 42 kA ultimate short-circuit breaking capacity for demanding distribution applications.
Key Features
- ABB SACE Emax E1B 1600 circuit breaker platform.
- 1600 A rated current.
- Four-pole configuration.
- Withdrawable (W) circuit breaker version.
- PR121/P-LSI electronic overcurrent release.
- Long-time, short-time and instantaneous protection functions.
- 690 V AC rated operational voltage.
- 42 kA Icu short-circuit breaking capacity.
- 42 kA short-time withstand current for 1 s.
- ABB order code 1SDA055689R1.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E1B are designed to switch and protect high-current low-voltage distribution circuits. By combining a robust breaker mechanism with an electronic protection unit, the circuit breaker can detect abnormal current conditions and interrupt the circuit before overloads or short circuits cause extensive damage to cables, busbars and connected equipment.
The PR121/P-LSI release provides long-time, short-time and instantaneous protection, while the withdrawable construction allows the circuit breaker to be isolated and removed from its switchgear position for inspection or maintenance. This combination makes the ABB 1SDA055689R1 particularly suitable for critical main distribution and feeder applications requiring reliable protection and maintainability.
Typical Applications
- Main low-voltage switchboards and distribution boards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Main incomer and feeder circuit protection.
- Manufacturing and process plant switchgear.
- High-current electrical distribution systems requiring withdrawable circuit breakers.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Order code | 1SDA055689R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 1600 A |
| Rated uninterrupted current (Iu) | 1600 A |
| Rated operational current (Ie) | 1600 A |
| Number of poles | 4 |
| Execution | Withdrawable (W) |
| Trip unit | PR121/P-LSI |
| Release type | Electronic |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Ultimate short-circuit breaking capacity (Icu) | 42 kA |
| Service short-circuit breaking capacity (Ics) | 42 kA |
| Short-time withstand current (Icw) | 42 kA for 1 s; 36 kA for 3 s |
| Short-circuit performance level | B |
| Current type | AC |
| Standard | IEC |
| Dimensions (W × H × D) | 414 × 461 × 396.5 mm |
| Net weight | 54 kg |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA055689R1?
The ABB 1SDA055689R1 is a SACE Emax E1B 1600 four-pole withdrawable air circuit breaker rated at 1600 A and equipped with a PR121/P-LSI electronic overcurrent release.
What is the current rating of the ABB 1SDA055689R1?
The circuit breaker has a rated current and rated uninterrupted current of 1600 A.
What protection functions does the PR121/P-LSI trip unit provide?
The PR121/P-LSI electronic release provides long-time overload protection, short-time short-circuit protection and instantaneous short-circuit protection.
How many poles does the ABB 1SDA055689R1 have?
This ABB E1B 1600 air circuit breaker has a four-pole configuration.
Is the ABB 1SDA055689R1 fixed or withdrawable?
The 1SDA055689R1 is a withdrawable (W) version, allowing the circuit breaker to be withdrawn from its switchgear position for maintenance or servicing.
What is the breaking capacity of the ABB 1SDA055689R1?
The E1B circuit breaker has an ultimate short-circuit breaking capacity of 42 kA and a short-time withstand current of 42 kA for 1 s.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are engineered for reliable switching and protection in demanding low-voltage power distribution systems, combining robust construction, electronic protection and serviceable switchgear configurations for industrial, commercial and infrastructure applications.
