ABB SACE Emax 3 E1.3C 1250 ACB 3 Pole 1250A 50kA Ekip Aware LSIG Fixed Front Terminals

ABB SACE Emax 3 E1.3C 1250 ACB 3 Pole 1250A 50kA Ekip Aware LSIG Fixed Front Terminals

ABB 1SDA128812R1 E1.3C 1250 Ekip Aware LSIG three-pole fixed air circuit breaker with 1250 A rated current, front terminals and electronic LSIG protection.

SKU: 1SDA128812R1
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Why Choose the ABB 1SDA128812R1 E1.3C 1250 Ekip Aware LSIG Air Circuit Breaker?

The ABB 1SDA128812R1 is a high-performance low-voltage air circuit breaker (ACB) from the ABB SACE Emax 3 range, designed for reliable protection, switching and control in demanding electrical distribution systems. This model is the E1.3C 1250 Ekip Aware LSIG configuration, providing three-pole fixed construction with front terminals and an advanced electronic Ekip release.

The Ekip Aware LSIG release provides comprehensive protection functions covering long-time, short-time, instantaneous and ground-fault protection. The fixed three-pole construction and front-terminal arrangement simplify integration into low-voltage switchboards and distribution equipment, while the integrated auxiliary contacts provide additional status signalling for control and monitoring systems.

With a 1250 A rated current and a 690 V AC rated voltage, the 1SDA128812R1 is suited to high-current electrical distribution applications where dependable circuit protection and operational monitoring are required. Its Emax 3 platform combines robust switching technology with electronic protection and monitoring capabilities for modern power distribution systems.

Key Advantages

  • 1250 A rated current for high-current low-voltage distribution applications.
  • Advanced Ekip Aware LSIG electronic release for comprehensive circuit protection.
  • Three-pole fixed configuration for straightforward switchboard integration.
  • Front terminals support practical connection within electrical distribution equipment.
  • Integrated 4 auxiliary contacts for breaker status and control signalling.
  • 690 V AC rated voltage suitable for demanding low-voltage electrical systems.

Key Features

  • ABB SACE Emax 3 E1.3C air circuit breaker.
  • 1250 A rated current.
  • Three-pole fixed version.
  • Front terminal connection.
  • Ekip Aware LSIG electronic release.
  • Long-time, short-time, instantaneous and ground-fault protection.
  • 4 auxiliary contacts for circuit-breaker status signalling.
  • Open/closed circuit-breaker position indication.

Advanced Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax 3 E1.3C provide controlled switching and protection for high-current electrical distribution systems. The electronic Ekip Aware LSIG release manages the configured protection functions to help protect conductors and connected equipment against electrical faults.

The 1SDA128812R1 combines a fixed three-pole breaker arrangement with front terminals, electronic LSIG protection and auxiliary signalling contacts. This configuration makes it suitable for integration into switchboards, distribution panels and other low-voltage power systems where reliable circuit protection and status monitoring are required.

Typical Applications

  • Low-voltage main distribution switchboards.
  • Industrial power distribution systems.
  • Commercial and infrastructure electrical installations.
  • Power distribution panels and switchgear assemblies.
  • High-current feeder and incoming circuit protection.
  • Industrial control and electrical distribution equipment.

Technical Specifications

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Device Type ACB
Current 1250 A
Poles 3-pole
Phase Three Phase
Breaking Capacity 50 kA
Trip Unit LSIG
Application Power distribution
Mounting Type Fixed
Manufacturer ABB
Series SACE Emax 3
Model E1.3C 1250 Ekip Aware LSIG 3p F F
Product type Low-voltage air circuit breaker
Order code 1SDA128812R1
Rated current 1250 A
Number of poles 3
Configuration Fixed
Terminal position Front terminals
Release unit Ekip Aware LSIG
Rated voltage 690 V AC
Auxiliary contacts 4
EAN 8056221304412
HS Code 85362090

Frequently Asked Questions

What is the ABB 1SDA128812R1 used for?

The ABB 1SDA128812R1 is a three-pole fixed air circuit breaker designed for protection and switching in low-voltage electrical distribution systems.

What is the rated current of the 1SDA128812R1?

The circuit breaker has a rated current of 1250 A.

What type of protection release does this circuit breaker use?

The 1SDA128812R1 uses an Ekip Aware LSIG electronic release providing long-time, short-time, instantaneous and ground-fault protection functions.

Is the ABB 1SDA128812R1 a fixed or withdrawable circuit breaker?

The 1SDA128812R1 is supplied in a fixed three-pole configuration with front terminals.

How many auxiliary contacts are included?

The circuit breaker is fitted with 4 auxiliary contacts for circuit-breaker status and control signalling.

Trusted by Electrical Engineers Worldwide

ABB SACE Emax 3 air circuit breakers provide advanced electronic protection, reliable switching and practical integration for demanding low-voltage power distribution systems.