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1SDA056927R1 ABB E4V 4000 PR123/P-LSIG 4000 A 4-Pole Air Circuit Breaker
ABB 1SDA056927R1 is a fixed four-pole 4000 A SACE Emax E4V air circuit breaker with PR123/P-LSIG electronic protection, rear horizontal terminals and a 150 kA ultimate short-circuit breaking capacity at 400 V AC.
£43,061.74
Why Choose the ABB 1SDA056927R1 E4V 4000 Air Circuit Breaker?
The ABB 1SDA056927R1 is a high-performance SACE Emax E4V 4000 air circuit breaker (ACB) designed for protection, switching and advanced monitoring in demanding high-current low-voltage electrical distribution systems. Part of the ABB New Emax / SACE Emax range, this four-pole fixed circuit breaker combines a 4000 A rated current with the advanced PR123/P-LSIG electronic overcurrent release.
The PR123/P-LSIG electronic trip unit provides comprehensive LSIG protection, combining long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. This protection package helps safeguard conductors, busbars, switchgear and connected equipment against a wide range of electrical fault conditions in critical power-distribution installations.
With a rated uninterrupted current of 4000 A, a four-pole fixed configuration and rear horizontal terminals, the 1SDA056927R1 is engineered for integration into high-capacity electrical switchboards. The E4V performance level provides rated ultimate and service short-circuit breaking capacities of 150 kA at 400 V AC, 130 kA at 500 V AC and 100 kA at 690 V AC.
Key Advantages
- High-capacity 4000 A air circuit breaker for demanding low-voltage power distribution.
- Four-pole configuration suitable for systems requiring switching and protection across four conductors.
- Advanced PR123/P-LSIG electronic overcurrent release.
- LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
- 150 kA ultimate and service short-circuit breaking capacity at 400 V AC.
- 130 kA ultimate and service short-circuit breaking capacity at 500 V AC.
- 100 kA ultimate and service short-circuit breaking capacity at 690 V AC.
- Fixed construction with rear horizontal terminals for permanent switchboard installation.
Key Features
- ABB SACE Emax E4V 4000 series.
- 4000 A rated uninterrupted current.
- Four-pole circuit-breaker configuration.
- Fixed installation version.
- PR123/P-LSIG R4000 electronic overcurrent release.
- Long-time (L) overload protection.
- Short-time (S) short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Ground-fault (G) protection.
- 150 kA Icu and Ics at 220–440 V AC.
- 130 kA Icu and Ics at 500 V AC.
- 100 kA Icu and Ics at 660–690 V AC.
- 100 kA short-time withstand current for 1 s.
- 75 kA short-time withstand current for 3 s.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Rear horizontal main terminals.
- Four auxiliary contacts with circuit-breaker open/closed position indication.
Advanced LSIG Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E4V provide switching and protection for high-current low-voltage distribution networks. The electronic trip unit monitors electrical conditions and initiates circuit interruption when configured protection thresholds are exceeded, helping protect switchgear, cables, busbars and connected equipment against potentially damaging overload, short-circuit and ground-fault conditions.
The PR123/P-LSIG release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. Together with the E4V circuit breaker's 4000 A current rating, 150 kA breaking capacity at 400 V AC and four-pole fixed construction, this makes the 1SDA056927R1 particularly suitable for critical main distribution and industrial installations requiring comprehensive protection and exceptional fault-current interruption capability.
Typical Applications
- Main low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Transformer secondary circuit protection.
- Main incomer and high-current feeder protection.
- Four-pole distribution systems requiring neutral switching.
- Electrical installations requiring integrated ground-fault protection.
- Systems with very high prospective short-circuit currents.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB order code | 1SDA056927R1 |
| Product type | Air circuit breaker |
| Product group | 310513-New Emax |
| Frame / performance level | E4V |
| Rated current (In) | 4000 A |
| Rated operational current (Ie) | 4000 A |
| Rated uninterrupted current (Iu) | 4000 A |
| 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 220–440 V AC | 150 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500 V AC | 130 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 660–690 V AC | 100 kA |
| Rated service short-circuit breaking capacity (Ics) at 220–440 V AC | 150 kA |
| Rated service short-circuit breaking capacity (Ics) at 500 V AC | 130 kA |
| Rated service short-circuit breaking capacity (Ics) at 660–690 V AC | 100 kA |
| Rated short-time withstand current (Icw), 1 s | 100 kA |
| Rated short-time withstand current (Icw), 3 s | 75 kA |
| Number of poles | 4 |
| Current type | AC |
| Protection release | PR123/P-LSIG R4000 |
| Release type | Electronic |
| Protection functions | L, S, I and G |
| Ground-fault protection | Integrated |
| Short-circuit performance level | V |
| Installation version | Fixed |
| Terminal connection | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Power loss | 360 W |
| Electrical durability | 5000 cycles at ≤440 V AC; 4000 cycles at 500–690 V AC |
| Mechanical durability | 15000 cycles |
| Weight | approx. 111 kg |
| EAN | 8015644582678 |
| HS code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA056927R1 used for?
The ABB 1SDA056927R1 is a 4000 A four-pole air circuit breaker designed for switching and comprehensive protection in high-current low-voltage electrical distribution systems, particularly where very high short-circuit performance is required.
What protection release is fitted to the ABB 1SDA056927R1?
The circuit breaker is fitted with an ABB PR123/P-LSIG R4000 electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection.
What does LSIG protection mean?
LSIG refers to long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection. These functions provide comprehensive protection against sustained overloads, short circuits and earth-fault conditions.
What is the short-circuit breaking capacity of the ABB E4V 4000?
The E4V 4000 provides rated ultimate and service short-circuit breaking capacities of 150 kA at 400 V AC, 130 kA at 500 V AC and 100 kA at 690 V AC.
Is the ABB 1SDA056927R1 fixed or withdrawable?
The 1SDA056927R1 is a fixed four-pole circuit breaker equipped with rear horizontal terminals for integration into suitable low-voltage switchboards.
Trusted High-Current Circuit Protection
ABB SACE Emax E4V air circuit breakers are engineered for demanding low-voltage power distribution applications, combining high current-carrying capability, advanced electronic LSIG protection and exceptional short-circuit performance for industrial, commercial and infrastructure electrical systems.
