Why Choose the ABB SACE Emax 3 E1.3N 1250 1SDA128868R1 Air Circuit Breaker?
The ABB SACE Emax 3 E1.3N 1250 1SDA128868R1 is a high-performance air circuit breaker designed for reliable protection and control in demanding low-voltage power distribution systems. This 4-pole circuit breaker has a rated current of 1250 A and a high short-circuit breaking capacity of 66 kA at 415 V, making it suitable for high-capacity electrical installations.
Equipped with an Ekip Aware LSIG trip unit, the breaker provides comprehensive protection functions covering long-time, short-time, instantaneous and ground-fault conditions. The Ekip Aware platform supports advanced protection and monitoring capabilities for modern power distribution applications.
This is the fixed version of the ABB SACE Emax 3 E1.3N 1250 air circuit breaker, specified with front terminals for straightforward integration into low-voltage switchboards and power distribution assemblies.
Key Advantages
- ABB SACE Emax 3 high-performance air circuit breaker for low-voltage power distribution.
- Rated current of 1250 A for high-capacity electrical distribution applications.
- High short-circuit breaking capacity of 66 kA at 415 V.
- 4-pole configuration for comprehensive circuit switching and protection.
- Ekip Aware LSIG trip unit providing long-time, short-time, instantaneous and ground-fault protection.
- Fixed installation configuration for secure integration into suitable switchboard assemblies.
- Front terminals for practical connection within the intended installation arrangement.
Key Features
- SACE Emax 3 series: Modern ABB air circuit breaker platform for demanding low-voltage applications.
- E1.3N 1250 frame: Emax 3 frame configuration rated at 1250 A.
- 66 kA breaking capacity: Icu of 66 kA at 415 V for high-level short-circuit protection.
- 4-pole construction: Provides switching and protection across four poles.
- Ekip Aware LSIG trip unit: Integrates long-time, short-time, instantaneous and ground-fault protection functions.
- Fixed design: Supplied as a fixed air circuit breaker for the specified installation configuration.
- Front terminals: Provides front-facing connection arrangement for compatible switchboard applications.
Reliable Protection for Low-Voltage Power Distribution
The ABB SACE Emax 3 E1.3N 1250 combines a 1250 A current rating with a 66 kA short-circuit breaking capacity at 415 V to provide robust protection for low-voltage distribution systems. Its 4-pole construction makes it suitable for applications where all required poles must be switched and protected.
The Ekip Aware LSIG trip unit provides the core protection functions required for managing overloads, short-circuit conditions and ground faults. The fixed configuration and front terminals of the 1SDA128868R1 support integration into compatible switchboards and electrical distribution assemblies.
Typical Applications
- Low-voltage main distribution boards
- Industrial electrical distribution systems
- Commercial building power distribution
- Power distribution and switching assemblies
- Industrial plants and manufacturing facilities
- Electrical infrastructure requiring high short-circuit protection
- Fixed switchgear and distribution equipment
- Critical power distribution installations
Frequently Asked Questions
What is the ABB 1SDA128868R1?
The ABB 1SDA128868R1 is a SACE Emax 3 E1.3N 1250 air circuit breaker with a 1250 A rated current, 4-pole configuration, 66 kA Icu at 415 V and an Ekip Aware LSIG trip unit.
What is the rated current of the E1.3N 1250?
The ABB SACE Emax 3 E1.3N 1250 has a rated current (In) of 1250 A.
What is the breaking capacity of the 1SDA128868R1?
The rated ultimate short-circuit breaking capacity (Icu) is 66 kA at 415 V.
Which trip unit is fitted to the ABB E1.3N 1250?
The 1SDA128868R1 is specified with an Ekip Aware LSIG trip unit, providing long-time, short-time, instantaneous and ground-fault protection functions.
Is the 1SDA128868R1 a fixed or withdrawable circuit breaker?
The 1SDA128868R1 is the fixed version of the ABB SACE Emax 3 E1.3N 1250 air circuit breaker and is specified with front terminals.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax 3 air circuit breakers provide high-capacity switching and protection for demanding low-voltage power distribution applications, with advanced trip-unit technology and configurable installation solutions.
