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1SDA104288R1 ABB E1.2N/E9 1250 Ekip Touch LSI 4p F F
ABB 1SDA104288R1 is a fixed four-pole SACE Emax 2 E1.2N/E9 1250 A air circuit breaker with front terminals, an Ekip Touch LSI electronic trip unit and 35 kA ultimate short-circuit breaking capacity at 900 V AC.
£6,402.82
Why Choose the ABB E1.2N/E9 1250 Ekip Touch LSI 4p F F?
The ABB E1.2N/E9 1250 Ekip Touch LSI 4p F F, order code 1SDA104288R1, is a SACE Emax 2/E9 air circuit breaker designed for demanding AC power-distribution applications. It combines the compact E1.2N frame with a 1250 A rated uninterrupted current, four-pole construction and ABB's advanced Ekip Touch electronic trip unit.
This E1.2N/E9 model is a fixed circuit breaker with front terminals. Its Ekip Touch LSI trip unit provides long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection, giving engineers adjustable electronic protection for feeders and main distribution circuits without the earth-fault protection function included in LSIG versions.
The Emax 2/E9 range is engineered for AC systems up to 900 V. For the E1.2N/E9 1250 frame, ABB specifies an ultimate short-circuit breaking capacity of 35 kA at 900 V AC, while product information for this breaker also identifies 35 kA at 800 V AC. This combination of high-voltage capability, intelligent protection and four-pole switching makes the 1SDA104288R1 suitable for demanding industrial and infrastructure distribution systems.
Key Advantages
- 1250 A E1.2N/E9 air circuit breaker for demanding AC distribution systems.
- Advanced Ekip Touch LSI electronic protection release.
- Provides long-time, short-time and instantaneous overcurrent protection.
- Four-pole configuration for compatible 4P power-distribution systems.
- Fixed execution with front terminals for direct switchboard integration.
- Emax 2/E9 design supports AC applications up to 900 V.
- ABB SACE Emax 2 architecture provides a broad platform for signalling, communication and control accessories.
Key Features
- ABB SACE Emax 2/E9 E1.2N air circuit breaker.
- Rated uninterrupted current (Iu): 1250 A.
- Four-pole (4P) construction.
- Fixed breaker execution.
- Front terminals.
- Ekip Touch electronic trip unit.
- LSI protection: long-time overload, short-time short-circuit and instantaneous short-circuit.
- Ultimate short-circuit breaking capacity (Icu): 35 kA at 900 V AC.
- Designed for high-voltage AC low-voltage distribution applications.
- ABB order code 1SDA104288R1.
Reliable Protection for High-Voltage AC Distribution
The ABB SACE Emax 2/E9 range extends Emax 2 circuit-breaker technology to AC distribution systems operating at voltages above the conventional 690 V class. The E1.2N/E9 configuration combines a compact frame with 1250 A current capability and a 35 kA breaking capacity at 900 V AC, providing a robust switching and protection solution for specialised high-voltage AC installations.
At the heart of the 1SDA104288R1 is the Ekip Touch LSI electronic trip unit. Its long-time, short-time and instantaneous protection functions allow the breaker to respond to overloads and different levels of short-circuit current while supporting selective protection strategies within compatible electrical distribution networks.
Typical Applications
- High-voltage AC low-voltage power-distribution systems.
- Industrial main distribution switchboards.
- 800 V and 900 V class AC distribution applications.
- Commercial and infrastructure electrical distribution.
- Four-pole power-distribution networks.
- Transformer secondary and feeder protection.
- Industrial process and high-power machinery installations.
- Systems requiring advanced electronic LSI overcurrent protection.
Technical Specifications
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| Voltage | 800 V AC | |
|---|---|---|
| Device Type | ACB | |
| Series | SACE Emax 2/E9 | |
| Frame | E1.2 | |
| Performance level | N | |
| Order code | 1SDA104288R1 | |
| Product type | Air circuit breaker | |
| Rated uninterrupted current (Iu) | 1250 A | |
| Maximum E9 system voltage | 900 V AC | |
| Ultimate short-circuit breaking capacity (Icu) at 900 V AC | 35 kA | |
| Ultimate short-circuit breaking capacity (Icu) at 800 V AC | 35 kA | |
| Number of poles | 4 | |
| Execution | Fixed | |
| Terminal arrangement | Front terminals | |
| Trip unit | Ekip Touch | |
| Protection functions | LSI | |
| Long-time protection | L | |
| Short-time protection | S | |
| Instantaneous protection | I | |
| Product family | Emax 2 Air Circuit Breakers |
Frequently Asked Questions
What is the ABB 1SDA104288R1?
The ABB 1SDA104288R1 is a SACE Emax 2 E1.2N/E9 fixed four-pole air circuit breaker rated at 1250 A, equipped with front terminals and an Ekip Touch LSI electronic trip unit.
What protection functions does the Ekip Touch LSI trip unit provide?
The LSI designation identifies long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. This model does not include the G earth-fault protection function identified on LSIG versions.
What is the breaking capacity of the ABB E1.2N/E9 1SDA104288R1?
ABB specifies an ultimate short-circuit breaking capacity of 35 kA at 900 V AC for the E1.2N/E9 1250 configuration.
Is the ABB 1SDA104288R1 fixed or withdrawable?
The 1SDA104288R1 is a fixed E1.2N/E9 air circuit breaker and is configured with front terminals.
How many poles does the ABB 1SDA104288R1 have?
The breaker has a four-pole configuration, making it suitable for compatible 4P power-distribution systems requiring a 1250 A Emax 2/E9 breaker with Ekip Touch LSI protection.
Advanced ABB SACE Emax 2 Protection
ABB SACE Emax 2/E9 combines high-performance circuit interruption with intelligent Ekip electronic protection, providing a flexible platform for demanding industrial, infrastructure and high-voltage AC power-distribution systems.
