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1SDA057028R1 ABB E6H 6300 PR122/P-LSI 6300A 3P Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA057028R1 E6H 6300 three-pole withdrawable SACE Emax air circuit breaker moving part rated at 6300 A with a PR122/P-LSI R6300 electronic overcurrent release providing LSI protection.
£62,431.24
Why Choose the ABB E6H 6300 PR122/P-LSI 6300A 3P Withdrawable Air Circuit Breaker?
The ABB E6H 6300 PR122/P-LSI, order code 1SDA057028R1, is a high-capacity three-pole withdrawable air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E6 series, it combines a rated uninterrupted current of 6300 A with the PR122/P-LSI R6300 electronic overcurrent release.
The E6H performance level provides high short-circuit interruption capability for major industrial and infrastructure installations. Its PR122/P-LSI electronic release provides long-time, short-time and instantaneous overcurrent protection, helping protect switchboards, conductors and connected equipment against overloads and short circuits while supporting selective protection coordination.
This configuration is the moving part of a three-pole withdrawable circuit breaker for use with a compatible SACE Emax fixed part. It operates at up to 690 V AC and provides 100 kA ultimate and service short-circuit breaking capacity across its specified AC voltage range, together with four auxiliary contacts and open/closed circuit-breaker position indication.
Key Advantages
- Very high 6300 A current rating for major low-voltage power distribution systems.
- Three-pole withdrawable configuration for maintainable high-current three-phase installations.
- PR122/P-LSI R6300 electronic overcurrent release.
- Provides long-time, short-time and instantaneous protection.
- 100 kA ultimate and service short-circuit breaking capacity across the specified 220–690 V AC range.
- Withdrawable construction supports convenient isolation, inspection, servicing and replacement.
- Four auxiliary contacts provide circuit-breaker open/closed status signalling.
Key Features
- ABB SACE Emax E6H air circuit breaker moving part.
- 6300 A rated uninterrupted current.
- 3-pole configuration.
- PR122/P-LSI R6300 electronic overcurrent release.
- Withdrawable moving-part construction.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 12 kV.
- 100 kA rated ultimate and service short-circuit breaking capacity.
- 100 kA for 1 s rated short-time withstand current.
- Four auxiliary contacts.
- Open/closed circuit-breaker position indication.
Advanced Protection for Very High-Current Power Distribution
Air circuit breakers such as the ABB E6H 6300 provide primary switching and protection for large low-voltage electrical systems. With its 6300 A continuous current capability, operation up to 690 V AC and 100 kA breaking capacity, this SACE Emax moving part is suited to major distribution networks where dependable interruption of substantial fault currents is essential.
The PR122/P-LSI electronic release provides long-time protection against sustained overloads, short-time protection for coordinated fault clearing and instantaneous protection against severe short circuits. Combined with the withdrawable Emax architecture, these functions support effective selectivity and protection coordination while allowing the breaker moving part to be isolated and removed for inspection, servicing or replacement.
Typical Applications
- Main incoming protection in very high-capacity low-voltage switchboards.
- Industrial power distribution and heavy process plants.
- Transformer secondary and distribution protection.
- Generator and utility distribution systems.
- Large data centres and critical infrastructure power systems.
- Heavy manufacturing and large commercial facilities.
- High-current feeder and power distribution centre protection.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series / frame | E6H 6300 |
| ABB order code | 1SDA057028R1 |
| EAN | 8015644583682 |
| Product type | Air circuit breaker moving part |
| Rated current (In) | 6300 A |
| Rated uninterrupted current (Iu) | 6300 A |
| Rated operational current (Ie) | 6300 A |
| Number of poles | 3 |
| Version | Withdrawable moving part |
| Trip unit | PR122/P-LSI electronic overcurrent release |
| Rating plug | R6300 |
| 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 |
| Rated ultimate short-circuit breaking capacity (Icu), 220–690 V AC | 100 kA |
| Rated service short-circuit breaking capacity (Ics), 220–690 V AC | 100 kA |
| Rated short-time withstand current (Icw), 1 s | 100 kA |
| Rated short-time withstand current (Icw), 3 s | 85 kA |
| Current type | AC |
| Release type | Electronic |
| Short-circuit performance level | H |
| Standard | IEC |
| Power loss | 1100 W |
| Mechanical durability | 12,000 operating cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Electrical durability at ≤440 V | 2,000 operating cycles |
| Electrical durability at 500–690 V | 1,500 operating cycles |
| Electrical operating frequency | 10 cycles per hour |
| Dimensions (W × H × D) | 810 × 461 × 396.5 mm |
| Product net weight | 116 kg |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
Frequently Asked Questions
What is the ABB 1SDA057028R1?
The ABB 1SDA057028R1 is the moving part of an E6H 6300 three-pole withdrawable SACE Emax air circuit breaker, rated at 6300 A and equipped with a PR122/P-LSI R6300 electronic overcurrent release.
What protection functions does the PR122/P-LSI release provide?
The PR122/P-LSI provides long-time overload, short-time short-circuit and instantaneous short-circuit protection functions.
What is the short-circuit breaking capacity of the ABB E6H 6300?
The E6H 6300 provides rated ultimate and service short-circuit breaking capacities of 100 kA across its specified 220–690 V AC range, together with short-time withstand ratings of 100 kA for 1 s and 85 kA for 3 s.
Is the ABB 1SDA057028R1 fixed or withdrawable?
This product is the moving part of a withdrawable air circuit breaker and is designed for use with the corresponding compatible fixed part in an ABB SACE Emax switchgear assembly.
Where is the E6H 6300 PR122/P-LSI typically used?
It is designed for very high-current low-voltage distribution applications including industrial switchboards, transformer secondary systems, power distribution centres, heavy manufacturing facilities, data centres and critical infrastructure installations.
Trusted Protection for Critical Power Systems
ABB SACE Emax air circuit breakers provide high-performance switching and protection for demanding low-voltage distribution systems, combining very high current capacity, electronic LSI protection and withdrawable construction for maintainable critical power applications.
