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1SDA055786R1 ABB E1N 1600 PR121/P-LSIG 1600 A 4-Pole Withdrawable Air Circuit Breaker
ABB 1SDA055786R1 is a SACE Emax E1N 1600 A four-pole withdrawable air circuit breaker with a PR121/P-LSIG electronic overcurrent release providing long-time, short-time, instantaneous and ground-fault protection for low-voltage power distribution systems.
£12,162.72
Why Choose the ABB 1SDA055786R1 E1N 1600 Air Circuit Breaker?
The ABB 1SDA055786R1 is a SACE Emax E1N 1600 air circuit breaker designed for dependable switching and comprehensive protection in high-current low-voltage power distribution systems. Rated at 1600 A, this four-pole withdrawable configuration incorporates a PR121/P-LSIG electronic overcurrent release providing long-time, short-time, instantaneous and ground-fault protection.
As part of the established ABB SACE Emax range, the E1N 1600 combines high-current switching capability with electronic circuit protection for industrial, commercial and infrastructure installations. The PR121/P-LSIG release provides LSIG protection functions, allowing the breaker to respond to sustained overloads, short circuits and ground-fault conditions.
The four-pole withdrawable construction makes this configuration particularly suitable for switchgear where maintainability and breaker interchangeability are important. The removable breaker arrangement supports inspection and servicing while retaining the benefits of the E1N platform for demanding low-voltage distribution duties.
Key Advantages
- Heavy-duty 1600 A SACE Emax air circuit breaker for high-current power distribution.
- Four-pole withdrawable configuration for serviceable low-voltage switchgear.
- PR121/P-LSIG electronic overcurrent release provides comprehensive circuit protection.
- LSIG functionality combines long-time, short-time, instantaneous and ground-fault protection.
- Withdrawable construction supports easier inspection, maintenance and breaker replacement.
- E1N performance platform is designed for demanding industrial and commercial distribution systems.
- ABB SACE Emax architecture supports integration into coordinated low-voltage protection schemes.
Key Features
- ABB SACE Emax E1N 1600 platform.
- 1600 A rated current.
- Four-pole configuration.
- Withdrawable (W) execution.
- PR121/P-LSIG electronic overcurrent release.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Ground-fault protection.
- Designed for high-current low-voltage AC distribution.
- Serviceable construction for compatible withdrawable SACE Emax switchgear.
- ABB order code 1SDA055786R1.
Comprehensive LSIG Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E1N are used to switch and protect high-current low-voltage distribution circuits. Electronic overcurrent protection enables the breaker to respond to abnormal current conditions, helping protect cables, busbars, switchgear and connected equipment against the damaging effects of overloads and short circuits.
The PR121/P-LSIG release extends this protection with ground-fault functionality alongside long-time, short-time and instantaneous protection. Combined with the 1600 A E1N platform and four-pole withdrawable construction, the ABB 1SDA055786R1 is well suited to main distribution and high-current feeder applications where comprehensive electronic protection and serviceable switchgear construction are required.
Typical Applications
- Main low-voltage switchboards and power distribution assemblies.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Main incomer and high-current feeder protection.
- Transformer and generator distribution systems.
- Four-pole withdrawable switchgear requiring comprehensive LSIG protection.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Frame | E1N 1600 |
| Order code | 1SDA055786R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 1600 A |
| Number of poles | 4 |
| Execution | Withdrawable (W) |
| Trip unit | PR121/P-LSIG |
| Release type | Electronic overcurrent release |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Long-time overload protection | Yes |
| Short-time short-circuit protection | Yes |
| Instantaneous short-circuit protection | Yes |
| Ground-fault protection | Yes |
| Current type | AC |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA055786R1?
The ABB 1SDA055786R1 is a SACE Emax E1N 1600 four-pole withdrawable air circuit breaker rated at 1600 A and equipped with a PR121/P-LSIG electronic overcurrent release.
What is the current rating of the ABB 1SDA055786R1?
The ABB 1SDA055786R1 has a rated current of 1600 A.
What protection functions does the PR121/P-LSIG release provide?
The PR121/P-LSIG electronic release provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection.
How many poles does the ABB 1SDA055786R1 have?
The ABB 1SDA055786R1 is a four-pole air circuit breaker configuration.
Is the ABB 1SDA055786R1 fixed or withdrawable?
The ABB 1SDA055786R1 is a withdrawable (W) SACE Emax air circuit breaker configuration, making it suitable for serviceable low-voltage switchgear installations.
Does the ABB 1SDA055786R1 provide ground-fault protection?
Yes. Its PR121/P-LSIG electronic release includes ground-fault protection in addition to long-time, short-time and instantaneous overcurrent protection.
Where is the ABB 1SDA055786R1 typically used?
The ABB 1SDA055786R1 is suitable for high-current low-voltage applications including main switchboards, incomers, feeders, industrial distribution systems and other installations requiring a 1600 A four-pole withdrawable air circuit breaker.
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 withdrawable configurations for industrial, commercial and infrastructure applications.
