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1SDA056058R1 ABB E2L1250 1250 A 4-Pole Fixed Air Circuit Breaker
ABB E2L1250 1SDA056058R1 is a 1250 A four-pole fixed SACE Emax air circuit breaker with horizontal rear terminals and a PR121/P-LSIG electronic trip unit for overload, short-circuit and earth-fault protection.
£11,882.93
Why Choose the ABB E2L1250 1SDA056058R1 Air Circuit Breaker?
The ABB E2L1250 1SDA056058R1 is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in demanding high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E2 series, this four-pole fixed circuit breaker combines a 1250 A rated current with the PR121/P-LSIG electronic trip unit for comprehensive overload, short-time, instantaneous and earth-fault protection.
Designed for industrial, infrastructure and commercial power distribution applications, the E2L1250 provides exceptionally high short-circuit interruption performance. The PR121/P-LSIG electronic overcurrent release provides L, S, I and G protection functions, helping protect conductors, busbars and connected equipment against sustained overloads, short circuits and earth faults.
This model is a four-pole fixed circuit breaker with horizontal rear terminals for switchboard and busbar integration. The E2L performance level provides a rated ultimate short-circuit breaking capacity of 130 kA at 415 V AC, making it particularly suitable for distribution systems with very high prospective fault currents.
Key Advantages
- High-current 1250 A air circuit breaker for demanding low-voltage distribution systems.
- PR121/P-LSIG electronic trip unit provides comprehensive circuit protection.
- Long-time, short-time, instantaneous and earth-fault protection.
- Exceptional 130 kA breaking capacity at 415 V AC.
- Four-pole fixed configuration supports switching and protection of three phases and neutral.
- Horizontal rear terminals provide practical integration with switchboard busbar systems.
Key Features
- ABB SACE Emax E2L1250 air circuit breaker.
- 1250 A rated current.
- 4-pole configuration.
- PR121/P-LSIG electronic overcurrent release.
- LSIG protection functions: long-time, short-time, instantaneous and earth fault.
- Fixed (F) circuit-breaker execution.
- Horizontal rear (HR) terminals.
- 130 kA Icu at 415 V AC.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 12 kV.
- Designed to IEC requirements for low-voltage air circuit breakers.
High-Performance Protection for Demanding Distribution Systems
The ABB E2L1250 is engineered for low-voltage installations where exceptionally high prospective short-circuit currents require substantial interruption capability. With an ultimate breaking capacity of 130 kA at 415 V AC, this E2L configuration is well suited to main switchboards, transformer-fed distribution systems and industrial networks located close to high-capacity power sources.
The PR121/P-LSIG electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the robust fixed SACE Emax platform and four-pole construction, this configuration provides comprehensive protection for critical three-phase and neutral low-voltage distribution circuits.
Typical Applications
- Main low-voltage switchboards and distribution boards.
- Industrial power distribution systems.
- Transformer secondary protection.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- High fault-level distribution networks.
Technical Specifications
| Series | SACE Emax E2 |
|---|---|
| ABB order code | 1SDA056058R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated current (In) | 1250 A |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated operational current (Ie) | 1250 A |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal arrangement | Horizontal rear terminals |
| Trip unit | PR121/P-LSIG electronic release |
| Protection functions | L, S, I, G |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate breaking capacity (Icu) at 400 V AC | 130 kA |
| Rated ultimate breaking capacity (Icu) at 415 V AC | 130 kA |
| Rated ultimate breaking capacity (Icu) at 440 V AC | 110 kA |
| Rated ultimate breaking capacity (Icu) at 500 V AC | 85 kA |
| Rated ultimate breaking capacity (Icu) at 690 V AC | 85 kA |
| Rated service breaking capacity (Ics) at 415 V AC | 130 kA |
| Rated service breaking capacity (Ics) at 690 V AC | 65 kA |
| Rated short-time withstand current (Icw), 1 s | 10 kA |
| Short-circuit performance level | L |
| Current type | AC |
| Power loss | 105 W |
| Electrical durability at ≤440 V | 4,000 cycles |
| Electrical durability at 500–690 V | 3,000 cycles |
| Mechanical durability | 20,000 cycles |
| Product dimensions (W × H × D) | 386 × 418 × 302 mm |
| Product net weight | 56 kg |
| EAN | 8015644573980 |
| Customs tariff number | 85362090 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB E2L1250 1SDA056058R1 used for?
It is a 1250 A air circuit breaker designed for switching and comprehensive protection of demanding low-voltage electrical distribution systems.
What trip unit is fitted to the ABB 1SDA056058R1?
This circuit breaker is equipped with an ABB PR121/P-LSIG electronic overcurrent release.
What protection functions does the PR121/P-LSIG provide?
The LSIG configuration provides long-time overload, short-time, instantaneous short-circuit and earth-fault protection.
What is the breaking capacity of the ABB E2L1250?
The E2L1250 provides a rated ultimate short-circuit breaking capacity of 130 kA at 415 V AC.
How is the ABB 1SDA056058R1 configured?
This model is a four-pole fixed air circuit breaker with horizontal rear terminals and a rated current of 1250 A.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for dependable protection and control of low-voltage power distribution systems, combining high breaking performance with electronic protection technology for demanding industrial, commercial and infrastructure installations.
