ABB SACE Emax 3 E2.3S 2500 ACB 3 Pole 2500A 85kA Ekip Aware LI Fixed Rear Terminals

ABB SACE Emax 3 E2.3S 2500 ACB 3 Pole 2500A 85kA Ekip Aware LI Fixed Rear Terminals

ABB 1SDA124877R1 Emax 3 E2.3S 2500 A three-pole fixed air circuit breaker with Ekip Aware LI electronic protection for high-current low-voltage power distribution.

SKU: 1SDA124877R1
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Why Choose the ABB 1SDA124877R1 Emax 3 Air Circuit Breaker?

The ABB 1SDA124877R1 is a high-performance air circuit breaker (ACB) from the ABB SACE Emax 3 series, designed for reliable protection and switching of high-current low-voltage electrical distribution systems. This E2.3S 2500 Ekip Aware LI circuit breaker features a three-pole fixed configuration and is intended for demanding industrial, commercial and infrastructure power distribution applications.

The breaker incorporates an Ekip Aware LI electronic trip unit providing long-time overload and instantaneous short-circuit protection. Its fixed construction, rear-mounted horizontal terminals and four auxiliary contacts support reliable integration into compatible switchboards and electrical distribution assemblies.

With a rated uninterrupted current of 2500 A, the ABB 1SDA124877R1 is designed for high-current electrical distribution applications. The E2.3S frame combines a robust construction with configurable electronic protection for dependable circuit protection and system coordination.

Key Advantages

  • High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
  • 2500 A rated uninterrupted current for high-current electrical installations.
  • Three-pole fixed construction for robust switchboard integration.
  • Integrated Ekip Aware LI electronic protection.
  • 3750–37500 A instantaneous protection setting for short-circuit protection.
  • Adjustable long-time overload protection from 1000–2500 A.
  • Rear-mounted horizontal main-circuit terminals for compatible switchboard installations.
  • Four auxiliary contacts for control and signalling integration.

Key Features

  • ABB SACE Emax 3 E2.3S series.
  • 2500 A rated uninterrupted current.
  • Ekip Aware LI electronic trip unit.
  • Three-pole fixed configuration.
  • Long-time current setting of 1000–2500 A.
  • Instantaneous short-circuit current setting of 3750–37500 A.
  • Rear horizontal main-circuit connection arrangement.
  • Four auxiliary contacts.
  • Open/closed circuit-breaker position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB Emax 3 E2.3S protect electrical distribution systems by monitoring current and interrupting circuits when overload or short-circuit conditions occur. The Ekip Aware LI electronic release provides adjustable long-time and instantaneous protection functions, helping engineers coordinate circuit protection with the requirements of high-current installations.

The Emax 3 platform is designed for demanding low-voltage distribution applications where dependable switching and electronic protection are required. The fixed three-pole construction and rear horizontal terminal arrangement make the 1SDA124877R1 suitable for integration into compatible industrial and commercial switchboards.

Typical Applications

  • Industrial low-voltage power distribution systems.
  • Main electrical switchboards and distribution panels.
  • Transformer and generator distribution equipment.
  • Industrial manufacturing and processing facilities.
  • Commercial and infrastructure power distribution systems.
  • High-current electrical protection and switching assemblies.

Technical Specifications

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Trip Unit LI
Device Type ACB
Current 2500 A
Poles 3-pole
Phase Three Phase
Breaking Capacity 85 kA
Application Power distribution
Mounting Type Fixed
Manufacturer ABB
Series SACE Emax 3
Model E2.3S 2500 Ekip Aware LI 3p FHR
Product type Air circuit breaker
Rated uninterrupted current (Iu) 2500 A
Number of poles 3
Construction Fixed
Trip unit Ekip Aware LI
Long-time overload current setting 1000–2500 A
Instantaneous short-circuit current setting 3750–37500 A
Main circuit connection Rear horizontal connection
Auxiliary contacts 4
Position indication Open / closed
HS Code 85362090

Frequently Asked Questions

What is the ABB 1SDA124877R1 used for?

The ABB 1SDA124877R1 is an Emax 3 air circuit breaker designed to protect and switch high-current low-voltage electrical distribution systems.

What is the rated current of this circuit breaker?

The ABB 1SDA124877R1 has a rated uninterrupted current of 2500 A.

What type of protection does the ABB 1SDA124877R1 provide?

The breaker uses an Ekip Aware LI electronic trip unit providing adjustable long-time overload and instantaneous short-circuit protection.

What are the adjustable protection ranges?

The long-time current setting range is 1000–2500 A, while the instantaneous protection setting range is 3750–37500 A.

How many poles does this circuit breaker have?

The ABB 1SDA124877R1 is a three-pole fixed air circuit breaker with rear horizontal main-circuit connections and four auxiliary contacts.

Trusted for Industrial Power Distribution

ABB SACE Emax 3 air circuit breakers are designed for reliable switching and protection in demanding low-voltage electrical distribution systems, providing configurable electronic protection for industrial, commercial and infrastructure applications.