Why Choose the ABB E1.3B 1250 Ekip Aware LI 3p F F Air Circuit Breaker?
The ABB 1SDA124757R1 is an E1.3B 1250 Ekip Aware LI 3-pole fixed air circuit breaker from the SACE Emax 3 range, designed to provide dependable protection and switching for demanding low-voltage power distribution systems.
With a rated current of 1250 A and Ekip Aware electronic protection, this circuit breaker provides adjustable long-time and instantaneous protection functions for high-current feeders, distribution systems, transformers and other electrical installations.
The fixed three-pole construction and LI protection configuration provide a robust solution for industrial and commercial switchboards requiring reliable high-current circuit protection and precise electronic protection settings.
Key Advantages
- 1250 A rated current: Supports high-current low-voltage distribution and feeder applications.
- Ekip Aware electronic release: Provides precise electronic protection with adjustable operating thresholds.
- LI protection: Combines long-time overload and instantaneous short-circuit protection functions.
- 42 kA breaking capacity: Provides robust short-circuit interruption capability for demanding electrical installations.
- 3-pole fixed construction: Provides a straightforward installation solution for compatible switchboards and distribution assemblies.
- Front terminal configuration: Supports practical main circuit connections within the fixed breaker arrangement.
- Emax 3 platform: Delivers ABB air circuit breaker technology for modern low-voltage power distribution.
Key Features
- ABB SACE Emax 3 E1.3B air circuit breaker
- Order code 1SDA124757R1
- 1250 A rated current
- 3-pole configuration
- Fixed version
- Front terminal configuration
- Ekip Aware electronic release
- LI protection functions
- Long-time current setting from 500 to 1250 A
- Instantaneous current setting from 1875 to 18750 A
- 42 kA short-circuit breaking capacity
- Up to 690 V AC operating voltage
- IP30 degree of protection
- 4 auxiliary contacts
- Open/closed circuit breaker position indication
Reliable Protection for Low-Voltage Power Distribution
The ABB E1.3B 1250 Ekip Aware LI 3p F F is designed for high-current low-voltage electrical distribution where dependable overload and short-circuit protection is essential. Its 1250 A rating accommodates substantial electrical loads, while the Ekip Aware electronic release provides adjustable long-time and instantaneous protection settings.
With its E1.3B circuit breaker platform, fixed three-pole construction, front terminals and Ekip Aware LI release, the 1SDA124757R1 can be integrated into industrial switchboards, power distribution assemblies and electrical infrastructure requiring robust air circuit breaker protection.
Typical Applications
- Industrial low-voltage power distribution
- Main and secondary switchboards
- High-current feeder protection
- Transformer protection and distribution
- Generator distribution systems
- Commercial and industrial electrical installations
- Power distribution panels and assemblies
- Infrastructure and utility electrical systems
