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1SDA056137R1 ABB E3N2500 PR121/P-LSI 2500A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056137R1 SACE Emax E3N2500 four-pole withdrawable air circuit breaker moving part with a 2500 A rating, PR121/P-LSI electronic protection and 65 kA breaking capacity for demanding low-voltage power distribution.
£19,632.66
Why Choose the ABB E3N2500 PR121/P-LSI 2500A 4P Withdrawable Air Circuit Breaker?
The ABB 1SDA056137R1 is a high-performance SACE Emax E3N air circuit breaker (ACB) moving part designed for switching and protection in demanding low-voltage electrical distribution systems. Part of the ABB New Emax product group, this four-pole withdrawable circuit breaker combines a 2500 A rated uninterrupted current with the PR121/P-LSI R2500 electronic overcurrent release for dependable protection of industrial, commercial and infrastructure power networks.
The E3N2500 provides long-time, short-time and instantaneous protection through its LSI trip functionality. The PR121/P electronic release provides overload, delayed short-circuit and instantaneous short-circuit protection, supporting effective coordination and selectivity between protective devices. As an LSI configuration, this breaker does not include integrated earth-fault protection.
With a rated uninterrupted current of 2500 A, a 690 V AC rated operational voltage and an ultimate short-circuit breaking capacity of 65 kA at 415 V AC, the E3N2500 provides robust protection for high-current distribution systems. This version is a four-pole withdrawable moving part, allowing removal from a compatible ABB SACE Emax fixed part for inspection, testing, servicing or replacement.
Key Advantages
- High-performance ABB SACE Emax E3N air circuit breaker moving part for high-current low-voltage distribution.
- 2500 A rated uninterrupted current for demanding electrical installations.
- Four-pole withdrawable configuration suitable for three-phase systems requiring neutral switching.
- PR121/P-LSI R2500 electronic overcurrent release for overload and short-circuit protection.
- LSI functionality provides long-time, short-time and instantaneous protection.
- 65 kA Icu and Ics across the specified 220–690 V AC operating range.
- 65 kA short-time withstand current for 1 s and 3 s supports robust system coordination.
- Withdrawable moving-part construction facilitates inspection, testing, servicing and replacement.
Key Features
- ABB SACE Emax E3N2500 air circuit breaker moving part.
- 2500 A rated uninterrupted current.
- Four-pole construction.
- Withdrawable moving-part configuration.
- PR121/P-LSI R2500 electronic overcurrent release.
- Long-time, short-time and instantaneous (LSI) protection functions.
- 690 V AC rated operational voltage.
- 65 kA Icu at 220–690 V AC.
- 65 kA Ics at 220–690 V AC.
- 65 kA Icw for 1 s and 3 s.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Four auxiliary contacts.
- Circuit-breaker open/closed position indication.
Reliable High-Current Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E3N2500 provide switching, isolation and overcurrent protection at critical points within high-current low-voltage distribution systems. The E3 frame accommodates substantial continuous currents, while the N performance level provides dependable short-circuit interruption and short-time withstand capability for industrial switchboards, transformer-fed networks and other high-capacity distribution applications.
The PR121/P-LSI electronic trip unit provides long-time overload, short-time overcurrent and instantaneous short-circuit protection. Combined with the withdrawable Emax construction and 65 kA short-circuit performance, this configuration provides dependable electrical protection while allowing the circuit-breaker moving part to be removed from compatible switchgear for inspection, testing, maintenance or replacement.
Typical Applications
- Main incoming circuit breakers in low-voltage switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Manufacturing and process plants.
- Transformer-fed distribution systems.
- Generator distribution and protection systems.
- High-current distribution feeder protection.
- Four-pole distribution systems requiring neutral switching.
- Withdrawable low-voltage switchgear and power distribution assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Product group | 310513-New Emax |
| ABB order code | 1SDA056137R1 |
| EAN | 8015644574772 |
| Customs tariff number | 85362090 |
| Product type | Air circuit breaker moving part |
| Frame / size | E3 |
| Short-circuit performance level | N |
| Rated current (In) | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Rated operational current (Ie) | 2500 A |
| Current type | AC |
| Number of poles | 4 |
| Version | Withdrawable moving part (W MP) |
| Trip unit | PR121/P-LSI R2500 |
| Release type | Electronic |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| Integrated earth-fault protection | No |
| Rated operational voltage | 690 V AC |
| Rated voltage (Ur) | 690 V |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 220–690 V AC | 65 kA |
| Rated service short-circuit breaking capacity (Ics) at 220–690 V AC | 65 kA |
| Rated short-time withstand current (Icw), 1 s | 65 kA |
| Rated short-time withstand current (Icw), 3 s | 65 kA |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open/closed |
| Mechanical durability | 20,000 operating cycles |
| Maximum mechanical operating frequency | 60 cycles per hour |
| Electrical durability at ≤440 V | 8,000 operating cycles |
| Electrical durability at 500–690 V | 7,000 operating cycles |
| Maximum electrical operating frequency | 20 cycles per hour |
| Power loss | 350 W |
| Dimensions (W × H × D) | 558 × 461 × 396.5 mm |
| Net weight | 81 kg |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA056137R1 used for?
The ABB 1SDA056137R1 is an E3N2500 withdrawable air circuit breaker moving part designed for switching and protecting high-current low-voltage electrical distribution systems against overload and short-circuit conditions.
What is the rated current of the ABB E3N2500 1SDA056137R1?
This circuit breaker has a rated uninterrupted current of 2500 A, making it suitable for high-current industrial, commercial and infrastructure power distribution applications.
What protection does the PR121/P-LSI trip unit provide?
The PR121/P-LSI electronic overcurrent release provides long-time overload, short-time overcurrent and instantaneous short-circuit protection. This LSI configuration does not include integrated earth-fault protection.
What is the breaking capacity of the ABB E3N2500?
The E3N2500 has a rated ultimate and service short-circuit breaking capacity of 65 kA across the specified 220–690 V AC operating range, with a rated short-time withstand current of 65 kA for 1 s and 3 s.
Is the ABB 1SDA056137R1 fixed or withdrawable?
The 1SDA056137R1 is a four-pole withdrawable circuit breaker moving part designed for use with a compatible ABB SACE Emax fixed part. The moving part and matching fixed part together form the complete withdrawable circuit-breaker assembly.
Trusted Protection from ABB
ABB SACE Emax air circuit breakers provide dependable switching and protection for demanding low-voltage power distribution systems, combining high continuous-current capability, robust short-circuit performance and service-friendly withdrawable construction for industrial, commercial and infrastructure applications.
