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1SDA055593R1 ABB E6H/f 6300 PR121/P-LSI 6300A 4-Pole Air Circuit Breaker
ABB 1SDA055593R1 E6H/f 6300 PR121/P-LSI is a 6300 A four-pole SACE Emax air circuit breaker with an electronic PR121/P trip unit providing long-time, short-time and instantaneous overcurrent protection.
£82,211.43
Why Choose the ABB E6H/f 6300 PR121/P-LSI 6300A 4-Pole Circuit Breaker?
The ABB E6H/f 6300 PR121/P-LSI, order code 1SDA055593R1, is a high-capacity SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Rated at 6300 A, this four-pole circuit breaker combines the robust E6H frame with a PR121/P-LSI electronic overcurrent release for dependable overload and short-circuit protection.
As part of the ABB SACE Emax range, the E6H/f 6300 is engineered for industrial, infrastructure and large commercial installations where high current capacity, selective protection and operational reliability are essential. The PR121/P trip unit provides long-time, short-time and instantaneous protection functions, helping protect conductors, switchgear and connected equipment against sustained overloads and short-circuit faults.
The four-pole configuration makes this Emax breaker suitable for three-phase systems where switching of the neutral conductor is required. Its high-current E6H construction and electronic trip technology make it particularly suitable for main distribution positions in large low-voltage switchboards and critical power systems.
Key Advantages
- High-capacity 6300 A SACE Emax air circuit breaker for major power distribution systems.
- Four-pole configuration suitable for three-phase systems with neutral switching.
- Electronic PR121/P-LSI overcurrent release for dependable circuit protection.
- LSI protection provides long-time, short-time and instantaneous protection functions.
- High-performance E6H frame designed for demanding fault levels.
- Electronic protection supports effective coordination within complex distribution networks.
- Suitable for main incomers, feeders and other critical high-current distribution positions.
- ABB SACE Emax construction provides reliable switching for demanding industrial applications.
Key Features
- ABB SACE Emax E6H/f 6300 air circuit breaker.
- 6300 A rated current.
- Four-pole construction.
- PR121/P-LSI electronic overcurrent release.
- Long-time (L) overload protection.
- Short-time (S) selective short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Designed for high-current low-voltage power distribution.
- Suitable for coordinated protection of large switchboards.
- Part of the established ABB SACE Emax circuit-breaker platform.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB E6H/f 6300 provide switching and overcurrent protection for high-current low-voltage distribution networks. The PR121/P-LSI electronic release monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, switchgear and connected equipment.
The combination of a 6300 A E6H frame, four-pole architecture and LSI electronic protection makes this circuit breaker well suited to main distribution applications where selective fault clearance and reliable high-current switching are important. Its protection functions can help coordinate the breaker with upstream and downstream protective devices throughout an electrical distribution system.
Typical Applications
- Main incomers for high-current low-voltage switchboards.
- Industrial power distribution and manufacturing facilities.
- Large commercial and infrastructure electrical systems.
- High-current main and feeder distribution circuits.
- Power generation and utility distribution installations.
- Transformer secondary protection.
- Critical power and process-industry switchgear.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA055593R1 |
| ABB product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E6H |
| Rated current | 6300 A |
| Number of poles | 4 |
| Trip unit | PR121/P-LSI |
| Trip unit rated current | 6300 A |
| Protection functions | Long-time (L), short-time (S), instantaneous (I) |
| Current type | AC |
| Application | Low-voltage power distribution |
Frequently Asked Questions
What is the ABB 1SDA055593R1?
The ABB 1SDA055593R1 is an E6H/f 6300 four-pole SACE Emax air circuit breaker rated at 6300 A and equipped with a PR121/P-LSI electronic overcurrent release.
What protection functions does the PR121/P-LSI trip unit provide?
The PR121/P-LSI release provides long-time, short-time and instantaneous protection, designated L, S and I, to protect against overload and short-circuit conditions.
What is the rated current of the ABB E6H/f 6300?
The circuit breaker and its PR121/P protection configuration are rated for 6300 A, making the unit suitable for high-current low-voltage power distribution.
How many poles does the ABB 1SDA055593R1 have?
The 1SDA055593R1 has four poles, making it suitable for three-phase power distribution applications where neutral switching is required.
Where is the E6H/f 6300 PR121/P-LSI typically used?
It is typically used in high-current low-voltage switchboards, industrial plants, infrastructure installations and other power distribution systems requiring dependable 6300 A circuit protection.
Trusted ABB Protection for Critical Power Systems
ABB SACE Emax air circuit breakers are designed for demanding low-voltage power distribution applications, combining high current capability, electronic protection and robust switching performance for industrial, infrastructure and commercial electrical systems.
