1SDA055690R1 ABB E1B 1600 PR121/P-LSIG 1600 A 4-Pole Withdrawable Air Circuit Breaker

1SDA055690R1 ABB E1B 1600 PR121/P-LSIG 1600 A 4-Pole Withdrawable Air Circuit Breaker

ABB 1SDA055690R1 is a SACE Emax E1B 1600 A four-pole withdrawable air circuit breaker moving part with a PR121/P-LSIG electronic overcurrent release providing LSIG protection for low-voltage power distribution systems.

SKU: 1SDA055690R1MPN: 1SDA055690R1
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List Price £16,711.79 ex VAT
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Why Choose the ABB 1SDA055690R1 E1B 1600 Air Circuit Breaker?

The ABB 1SDA055690R1 is a high-performance SACE Emax E1B 1600 air circuit breaker moving part designed for dependable protection and switching in low-voltage power distribution systems. Rated at 1600 A, this four-pole withdrawable configuration incorporates an advanced PR121/P-LSIG electronic overcurrent release for comprehensive circuit protection.

As part of the proven ABB SACE Emax range, the E1B 1600 combines high-current switching capability with configurable electronic protection for demanding industrial, commercial and infrastructure installations. The PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, helping protect distribution equipment against overloads, short circuits and earth faults.

This configuration features a four-pole withdrawable design with a rated current of 1600 A. The moving part is supplied with four auxiliary contacts and circuit-breaker open/closed position indication, providing a serviceable solution for switchboards where reliable protection, status signalling and maintainability are required.

Key Advantages

  • Heavy-duty 1600 A SACE Emax air circuit breaker moving part for low-voltage power distribution.
  • Four-pole configuration for comprehensive switching across four conductors.
  • Withdrawable execution supports convenient switchboard servicing and maintenance.
  • Advanced PR121/P-LSIG electronic overcurrent release.
  • LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
  • Supplied with four auxiliary contacts and open/closed circuit-breaker position indication.

Key Features

  • ABB SACE Emax E1B 1600 circuit breaker platform.
  • 1600 A rated current.
  • Four-pole configuration.
  • Withdrawable (W) moving-part execution.
  • PR121/P-LSIG electronic overcurrent release.
  • Long-time, short-time, instantaneous and ground-fault protection functions.
  • 42 kA E1B short-circuit performance level at 380/415 V AC.
  • Four auxiliary contacts fitted as standard on this configuration.
  • Circuit-breaker open/closed position indication.
  • ABB order code 1SDA055690R1.

Advanced Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax E1B are designed to switch and protect high-current low-voltage distribution circuits. By combining a robust breaker mechanism with an electronic protection unit, the circuit breaker can detect abnormal current conditions and interrupt the circuit before overloads, short circuits or ground faults cause extensive damage to cables, busbars and connected equipment.

The PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection, while the withdrawable moving-part construction supports serviceability within compatible SACE Emax switchgear. This combination makes the ABB 1SDA055690R1 particularly suitable for critical main distribution and feeder applications requiring comprehensive electronic protection.

Typical Applications

  • Main low-voltage switchboards and distribution boards.
  • Industrial power distribution systems.
  • Commercial and infrastructure electrical installations.
  • Main incomer and feeder circuit protection.
  • Manufacturing and process plant switchgear.
  • High-current electrical distribution systems requiring withdrawable circuit breakers.

Technical Specifications

Series SACE Emax
Order code 1SDA055690R1
EAN 8015644570309
Product type Air circuit breaker moving part
Rated current (In) 1600 A
Number of poles 4
Execution Withdrawable (W)
Configuration Moving part (MP)
Trip unit PR121/P-LSIG
Release type Electronic overcurrent release
Protection functions Long-time, short-time, instantaneous and ground fault (LSIG)
Ultimate short-circuit breaking capacity (Icu) 42 kA at 380/415 V AC
Auxiliary contacts 4
Position indication Circuit breaker open / closed
Current type AC
Product net width 414 mm
Product net height 461 mm
Product net depth 396.5 mm
Product net weight 54 kg
ABB product group 310513-New Emax

Frequently Asked Questions

What is the ABB 1SDA055690R1?

The ABB 1SDA055690R1 is a SACE Emax E1B 1600 four-pole withdrawable air circuit breaker moving part rated at 1600 A and equipped with a PR121/P-LSIG electronic overcurrent release.

What is the current rating of the ABB 1SDA055690R1?

The circuit breaker configuration has a rated current of 1600 A.

What protection functions does the PR121/P-LSIG trip unit provide?

The PR121/P-LSIG electronic release provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection.

How many poles does the ABB 1SDA055690R1 have?

This ABB E1B 1600 air circuit breaker moving part has a four-pole configuration.

Is the ABB 1SDA055690R1 fixed or withdrawable?

The 1SDA055690R1 is a withdrawable (W) moving-part configuration, designed for use within a compatible SACE Emax withdrawable circuit-breaker installation.

What auxiliary equipment is fitted to the ABB 1SDA055690R1?

This configuration is fitted with four auxiliary contacts and circuit-breaker open/closed position indication.

Trusted by Electrical Engineers Worldwide

ABB SACE Emax air circuit breakers are engineered for reliable switching and protection in demanding low-voltage power distribution systems, combining robust construction, electronic protection and serviceable switchgear configurations for industrial, commercial and infrastructure applications.