1SDA056169R1 ABB E3N3200 PR121/P-LSI 3200A 4P Withdrawable Air Circuit Breaker

Why Choose the ABB E3N3200 PR121/P-LSI 3200A 4P Withdrawable Air Circuit Breaker?

The ABB E3N3200 PR121/P-LSI, order code 1SDA056169R1, is a high-current SACE Emax air circuit breaker moving part designed for switching and protection in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E3N series, this four-pole withdrawable circuit breaker is rated at 3200 A and incorporates the PR121/P-LSI R3200 electronic overcurrent release.

The PR121/P-LSI trip unit provides long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. These electronic protection functions help safeguard cables, busbars, switchgear and connected equipment against sustained overloads and short-circuit conditions while supporting coordinated protection within high-current electrical distribution systems.

This E3N3200 configuration is a four-pole withdrawable moving part intended for use with compatible SACE Emax switchgear. Its withdrawable construction supports efficient inspection, servicing and replacement, while the E3N frame provides a rated uninterrupted current of 3200 A and 65 kA short-circuit performance for demanding power distribution applications.

Key Advantages

• High-current 3200 A SACE Emax air circuit breaker moving part.
• PR121/P-LSI R3200 electronic overcurrent release for dependable circuit protection.
• LSI protection covers long-time overload, short-time short-circuit and instantaneous short-circuit conditions.
• Four-pole configuration for compatible four-pole low-voltage distribution systems.
• Withdrawable execution supports efficient inspection, servicing and replacement within compatible switchgear.
• 65 kA rated ultimate and service short-circuit breaking capacity across the specified AC voltage range.

Key Features

• ABB SACE Emax E3N 3200 air circuit breaker moving part.
• 3200 A rated uninterrupted current.
• Four-pole configuration.
• PR121/P-LSI R3200 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Withdrawable / moving-part execution.
• 690 V rated voltage.
• Four auxiliary contacts.
• Integrated open/closed circuit breaker position indication.

Advanced LSI Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3N3200 provide switching and protection for high-current low-voltage distribution circuits. The electronic overcurrent release monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected electrical equipment.

The PR121/P-LSI release combines long-time overload, short-time short-circuit and instantaneous short-circuit protection within an electronic trip unit. Together with the E3N frame's 3200 A current capability, 65 kA short-circuit performance, four-pole arrangement and withdrawable construction, this configuration provides dependable protection for main distribution and high-current feeder circuits.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plant switchgear.
• Commercial building electrical distribution.
• Infrastructure and utility installations.
• Main incomer and high-current feeder protection.
• Four-pole low-voltage distribution systems.
• Switchboards requiring withdrawable circuit breaker assemblies.