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1SDA055853R1 ABB E2B 2000 PR122/P-LSIG 2000 A 4-Pole Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA055853R1 SACE Emax E2B 2000 is a 2000 A four-pole withdrawable air circuit breaker moving part with a PR122/P-LSIG electronic release and 42 kA short-circuit breaking capacity at 415 V AC.
£15,903.77
Why Choose the ABB 1SDA055853R1 E2B 2000 Air Circuit Breaker Moving Part?
The ABB 1SDA055853R1 is a SACE Emax E2B 2000 moving part for a withdrawable air circuit breaker, designed for high-current switching and comprehensive overcurrent protection in low-voltage AC power distribution systems. This four-pole unit has a rated current of 2000 A and is equipped with a PR122/P-LSIG R2000 electronic overcurrent release, providing long-time, short-time, instantaneous and earth-fault protection.
Part of the established ABB SACE Emax range, the E2B 2000 combines substantial current-carrying capability with advanced electronic protection and the serviceability of a withdrawable circuit-breaker arrangement. The B performance level provides rated ultimate and service short-circuit breaking capacities of 42 kA at 415 V AC, together with a rated short-time withstand current of 42 kA.
The 1SDA055853R1 is a four-pole withdrawable (W) moving portion intended for installation with a compatible SACE Emax fixed part. It is rated for operation up to 690 V AC, with a rated insulation voltage of 1000 V and rated impulse withstand voltage of 12 kV. Four auxiliary contacts and circuit-breaker open/closed position indication support integration with switchboard signalling and monitoring systems.
Key Advantages
- High-current 2000 A E2B air circuit breaker moving part for demanding low-voltage distribution systems.
- PR122/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection.
- 42 kA rated ultimate and service short-circuit breaking capacity at 415 V AC.
- Four-pole configuration supports switching and protection in three-phase systems with neutral.
- Withdrawable construction facilitates inspection, maintenance and replacement within compatible Emax switchgear.
- 42 kA short-time withstand current for 1 s and 3 s supports robust fault-current performance.
- Earth-fault protection adds an important additional protective function compared with LI and LSI releases.
- Four auxiliary contacts and open/closed position indication support switchboard signalling and monitoring.
Key Features
- ABB SACE Emax E2B 2000 air circuit breaker moving part.
- 2000 A rated current.
- 4-pole configuration.
- PR122/P-LSIG R2000 electronic release.
- LSIG protection provides long-time, short-time, instantaneous and earth-fault protection.
- Withdrawable (W) circuit-breaker configuration.
- Moving portion for installation with a compatible SACE Emax fixed part.
- 690 V AC rated operational voltage.
- 42 kA rated ultimate short-circuit breaking capacity at 415 V AC.
- 42 kA rated service short-circuit breaking capacity at 415 V AC.
- 42 kA rated short-time withstand current for 1 s and 3 s.
- Four auxiliary contacts with circuit-breaker open/closed position indication.
Comprehensive LSIG Protection for 2000 A Power Distribution
The ABB SACE Emax E2B 2000 provides switching and electronic overcurrent protection for high-current low-voltage distribution circuits. Its PR122/P-LSIG release combines long-time protection against sustained overloads, short-time protection for selective fault coordination, instantaneous protection against severe short-circuit currents and earth-fault protection for faults involving earth or protective conductors.
The withdrawable construction allows the circuit-breaker moving portion to be removed from its compatible fixed part, supporting inspection, maintenance and replacement strategies in critical switchboards. Combined with a 2000 A rating, four-pole configuration, 42 kA short-circuit performance and comprehensive LSIG protection, the 1SDA055853R1 is well suited to main incoming and high-current distribution duties where selectivity, maintainability and extensive fault protection are required.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Main incoming circuit protection.
- Four-pole three-phase and neutral distribution systems.
- High-current feeder protection.
- Withdrawable switchgear assemblies.
- Manufacturing and process plants.
- Commercial and infrastructure electrical distribution.
- Distribution systems requiring overload, short-circuit and earth-fault protection.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA055853R1 |
| Product type | Air circuit breaker moving part |
| Frame / sub-type | E2 |
| Short-circuit performance level | B |
| Rated current (In) | 2000 A |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated operational current (Ie) | 2000 A |
| Number of poles | 4 |
| Current type | AC |
| 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) at 415 V AC | 42 kA |
| Rated service short-circuit breaking capacity (Ics) at 415 V AC | 42 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 42 kA |
| Rated service short-circuit breaking capacity (Ics) at 690 V AC | 42 kA |
| Rated short-time withstand current (Icw) | 42 kA for 1 s |
| Release | PR122/P-LSIG R2000 |
| Release type | Electronic |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault |
| Long-time protection (L) | Overload protection |
| Short-time protection (S) | Selective short-circuit protection |
| Instantaneous protection (I) | Instantaneous short-circuit protection |
| Earth-fault protection (G) | Ground / earth-fault protection |
| Version | Withdrawable |
| Configuration | Moving portion |
| Terminal connection type | Withdrawable circuit breaker |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Power loss | 330 W |
| Mechanical durability | 25,000 cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Electrical durability at ≤440 V | 10,000 cycles |
| Electrical durability at 500–690 V | 8,000 cycles |
| Electrical operating frequency | 30 cycles per hour |
| Product dimensions (W × H × D) | 414 × 461 × 396.5 mm |
| Net weight | 61 kg |
| Standard | IEC |
| EAN | 8015644571931 |
Frequently Asked Questions
What is the ABB 1SDA055853R1?
The ABB 1SDA055853R1 is the moving portion of a four-pole SACE Emax E2B 2000 withdrawable air circuit breaker, rated at 2000 A and fitted with a PR122/P-LSIG R2000 electronic overcurrent release.
What protection release is fitted to the ABB 1SDA055853R1?
The unit is fitted with a PR122/P-LSIG R2000 electronic release providing long-time, short-time, instantaneous and earth-fault protection.
What does LSIG protection mean?
LSIG denotes long-time, short-time, instantaneous and earth-fault protection. These functions provide protection against sustained overloads, selective and severe short circuits, and earth-fault conditions.
Is the ABB 1SDA055853R1 fixed or withdrawable?
The 1SDA055853R1 is a withdrawable circuit-breaker moving part designed for installation with the corresponding compatible ABB SACE Emax fixed part.
What is the short-circuit rating of the ABB E2B 2000?
The E2B 2000 has rated ultimate and service short-circuit breaking capacities of 42 kA at 415 V AC and a rated short-time withstand current of 42 kA for both 1 s and 3 s.
Trusted ABB Protection for Critical Distribution Systems
ABB SACE Emax air circuit breakers provide robust switching and electronic protection for low-voltage power distribution, combining high current capability, comprehensive LSIG protection and serviceable withdrawable construction for demanding industrial and infrastructure applications.
