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1SDA055585R1 ABB E6H/f 6300 PR121/P-LSI 6300A 4-Pole Air Circuit Breaker
ABB 1SDA055585R1 E6H/f 6300 PR121/P-LSI is a 6300 A four-pole fixed SACE Emax air circuit breaker with a full-size neutral, rear horizontal terminals and electronic LSI overcurrent protection.
£69,454.22
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 1SDA055585R1, is a high-capacity SACE Emax air circuit breaker designed for dependable protection and switching of low-voltage power distribution systems. Rated at 6300 A, this four-pole fixed circuit breaker combines the robust E6H frame with an electronic PR121/P-LSI overcurrent release for comprehensive protection of critical electrical installations.
As part of the ABB SACE Emax range, the E6H/f 6300 is engineered for demanding industrial and commercial distribution applications 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, enabling the breaker to respond effectively to overload and short-circuit conditions.
This configuration features a four-pole fixed design with a full-size neutral and rear horizontal terminals. It is supplied with four auxiliary contacts and circuit-breaker open/closed position indication, providing useful signalling and status information for switchboards and power distribution systems.
Key Advantages
- High-capacity 6300 A SACE Emax air circuit breaker for major power distribution systems.
- Four-pole configuration with full-size neutral for three-phase and neutral networks.
- Electronic PR121/P-LSI overcurrent release for comprehensive circuit protection.
- LSI protection functions cover long-time, short-time and instantaneous overcurrent conditions.
- Fixed installation configuration with rear horizontal terminals.
- Four auxiliary contacts support circuit-breaker status monitoring and control.
- Open/closed position indication assists operators with clear breaker status identification.
- Designed for demanding industrial, infrastructure and commercial low-voltage distribution systems.
Key Features
- ABB SACE Emax E6H/f 6300 circuit breaker.
- 6300 A rated current.
- Four-pole construction.
- Full-size neutral configuration.
- PR121/P-LSI electronic overcurrent release, R6300.
- Long-time, short-time and instantaneous protection functions.
- Fixed circuit-breaker execution.
- Rear horizontal terminals for power connections.
- Fitted with four auxiliary contacts.
- Circuit-breaker open/closed position indication.
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 electronic PR121/P-LSI release continuously monitors current and initiates breaker operation when configured protection thresholds are exceeded, helping protect conductors, switchgear and connected equipment from damaging electrical faults.
The combination of a 6300 A E6H frame, four-pole architecture and LSI electronic protection makes this breaker particularly suitable for main incomers and other critical distribution positions. Its fixed construction and rear horizontal terminals are designed for integration into large low-voltage switchboards and power distribution assemblies.
Typical Applications
- Main incomers for low-voltage distribution switchboards.
- Industrial power distribution and manufacturing facilities.
- Large commercial and infrastructure electrical systems.
- High-current electrical distribution panels.
- Power generation and utility distribution installations.
- Transformer secondary and main distribution protection.
- Critical power and process-industry switchgear.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA055585R1 |
| Product type | Air circuit breaker |
| Frame | E6H |
| Rated current | 6300 A |
| Number of poles | 4 |
| Neutral | Full size |
| Installation | Fixed |
| Trip unit | PR121/P-LSI |
| Trip unit rating | R6300 |
| Protection functions | Long-time (L), short-time (S), instantaneous (I) |
| Terminal configuration | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Current type | AC |
| Product net width | 1034 mm |
| Product net height | 418 mm |
| Product net depth | 302 mm |
| Product net weight | 135 kg |
| EAN | 8015644569259 |
Frequently Asked Questions
What is the ABB 1SDA055585R1?
The ABB 1SDA055585R1 is a SACE Emax E6H/f 6300 four-pole fixed 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, commonly designated L, S and I, for overload and short-circuit protection.
How many poles does this ABB Emax circuit breaker have?
This model is a four-pole circuit breaker with a full-size neutral, making it suitable for three-phase distribution systems requiring neutral switching and protection.
Is the ABB 1SDA055585R1 fixed or withdrawable?
The 1SDA055585R1 is a fixed circuit breaker and is configured with rear horizontal terminals for connection within a low-voltage switchboard.
Where is the E6H/f 6300 PR121/P-LSI typically used?
It is typically used in high-current low-voltage distribution systems, including main switchboards, industrial plants, infrastructure installations and other applications requiring reliable 6300 A circuit protection.
Trusted ABB Protection for Critical Power Systems
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining high current capability, electronic protection and robust switching performance for industrial and commercial electrical systems.
