1SDA055848R1 ABB E2B2000 PR121/P-LI 2000A 4-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E2B2000 PR121/P-LI 2000A 4-Pole Withdrawable Air Circuit Breaker?

The ABB 1SDA055848R1 is a SACE Emax E2B air circuit breaker (ACB) moving part designed for switching and protection in high-current low-voltage electrical distribution systems. Rated at 2000 A, this four-pole withdrawable circuit breaker moving part is equipped with the PR121/P-LI R2000 electronic overcurrent release for reliable overload and instantaneous short-circuit protection.

As part of the ABB SACE Emax / New Emax range, the E2B2000 combines robust switching performance with electronic circuit protection for industrial and commercial power distribution. The PR121/P-LI release provides long-time and instantaneous protection functions, helping protect cables, busbars and connected electrical equipment against sustained overloads and high short-circuit currents.

The E2B2000 PR121/P-LI is a four-pole withdrawable moving part with a rated uninterrupted current of 2000 A and a rated voltage of 690 V AC. Its E2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA at 400 V AC, while the withdrawable construction supports maintenance and replacement within compatible SACE Emax switchgear assemblies.

Key Advantages

• High-capacity 2000 A SACE Emax air circuit breaker moving part.
• Four-pole configuration suitable for three-phase four-wire distribution systems.
• Electronic PR121/P-LI R2000 overcurrent release.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• 42 kA ultimate short-circuit breaking capacity at 400 V AC.
• Withdrawable construction supports maintainable switchboard installations.
• Adjustable overload protection from 800–2000 A.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E2B2000 air circuit breaker moving part.
• 2000 A rated uninterrupted current.
• Four-pole configuration.
• Withdrawable moving-part construction.
• PR121/P-LI R2000 electronic overcurrent release.
• Long-time and instantaneous LI protection functions.
• 690 V AC rated voltage.
• 42 kA Icu at 400 V AC, 50 Hz.
• Adjustable overload protection from 800–2000 A.
• Adjustable instantaneous short-circuit protection from 3000–30000 A.
• IP2X protection rating.
• Optional motor operating mechanism.

Reliable Circuit Protection for Four-Wire Power Distribution

Air circuit breakers such as the ABB E2B2000 provide switching, isolation and protection for high-current low-voltage distribution circuits. The four-pole configuration is particularly suitable for three-phase four-wire systems, while the withdrawable architecture allows the circuit breaker moving part to be disconnected from its corresponding fixed part for inspection, servicing or replacement.

The PR121/P-LI electronic release provides long-time protection against sustained overload conditions and instantaneous protection against severe short-circuit currents. Its adjustable protection settings enable the E2B2000 to provide dependable circuit protection across demanding industrial and commercial electrical distribution applications.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Three-phase four-wire electrical distribution systems.
• Main incoming circuit protection.
• High-current feeder protection.
• Withdrawable switchgear assemblies.
• Busbar and power distribution applications.
• Transformer secondary distribution systems.
• Manufacturing, commercial and infrastructure installations.