Why Choose the ABB 1SDA126056R1?
The ABB 1SDA126056R1 is an SACE Emax 3 E2.3S 250 A air circuit breaker equipped with an Ekip Aware LSI electronic trip unit and a 4-pole configuration. Designed for dependable low-voltage power distribution and system protection, it combines adjustable long-time, short-time and instantaneous protection functions with ABB's Emax 3 platform.
With a rated uninterrupted current of 250 A, the E2.3S 250 provides a robust solution for protecting electrical distribution systems against overloads and short-circuit conditions. Its LSI protection configuration allows the protection thresholds to be adjusted to suit different installation requirements.
The 1SDA126056R1 is supplied as a complete 4-pole circuit breaker in fixed horizontal configuration, making it suitable for applications where reliable switching, protection and controlled fault interruption are required within modern low-voltage electrical installations.
Key Advantages
- ABB SACE Emax 3 E2.3S platform for low-voltage power distribution
- 250 A rated uninterrupted current for dependable circuit protection
- Ekip Aware LSI electronic trip unit with adjustable protection functions
- 4-pole configuration for three-phase systems with neutral protection
- High short-circuit breaking capacity with Icu up to 85 kA at 440 V
- Suitable for fixed horizontal installation arrangements
- Electronic protection technology supports accurate and flexible protection settings
Key Features
- Manufacturer: ABB
- Order code: 1SDA126056R1
- Product family: SACE Emax 3
- Breaker type: E2.3S 250
- Trip unit: Ekip Aware LSI
- Protection functions: Long-time, short-time and instantaneous protection
- Number of poles: 4
- Mounting configuration: Fixed horizontal
- Rated uninterrupted current: 250 A
- Rated voltage: up to 690 V AC
Reliable Emax 3 Protection for Power Distribution
The ABB E2.3S 250 combines a robust air circuit breaker platform with the adjustable Ekip Aware LSI electronic trip unit. This enables the breaker to provide coordinated protection against overloads and different levels of short-circuit current while supporting flexible system design.
Its 4-pole arrangement and fixed horizontal configuration make the 1SDA126056R1 well suited to switchboards, distribution panels and other low-voltage assemblies where dependable circuit protection and controlled fault interruption are essential.
Typical Applications
- Low-voltage power distribution systems
- Main and sub-main distribution boards
- Industrial electrical switchboards
- Commercial building distribution systems
- Transformer protection applications
- Generator and electrical system protection
- Industrial automation and infrastructure power systems
