1SDA054394R1 ABB T5V 400 PR222DS/P-LSIG In=320 4P F Moulded Case Circuit Breaker 320 A

Why Choose the ABB T5V 400 PR222DS/P-LSIG In=320 4P F Circuit Breaker?

The ABB 1SDA054394R1 is a high-performance SACE Tmax T5V moulded case circuit breaker (MCCB) designed for advanced protection and switching in demanding industrial and commercial low-voltage power distribution systems. Part of the proven ABB SACE Tmax T5 series, this four-pole circuit breaker combines a 400 A frame with a 320 A PR222DS/P-LSIG electronic trip unit.

The PR222DS/P-LSIG electronic release provides comprehensive LSI plus ground-fault protection, combining long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection functions. This configurable electronic protection architecture supports accurate coordination with cables, feeders and downstream protective devices while adding dedicated protection against earth-fault conditions.

With a 320 A trip-unit rating, four-pole construction and fixed installation, the T5V 400 PR222DS/P-LSIG is engineered for demanding low-voltage distribution assemblies. The high-performance T5V platform provides an ultimate short-circuit breaking capacity of 200 kA at 380–415 V AC, making it particularly suitable for installations where exceptionally high prospective fault currents and advanced protection requirements must be addressed.

Key Advantages

• High-performance ABB SACE Tmax T5V moulded case circuit breaker.
• 320 A electronic trip-unit rating within the 400 A T5 frame.
• Four-pole configuration for systems requiring four-pole protection and switching.
• PR222DS/P-LSIG electronic trip unit for advanced circuit protection.
• Long-time, short-time and instantaneous LSI protection functions.
• Integrated ground-fault protection for enhanced electrical system protection.
• Supports selective coordination with downstream protective devices.
• Exceptional ultimate short-circuit breaking capacity of 200 kA at 380–415 V AC.

Key Features

• ABB SACE Tmax T5 series.
• T5V 400 frame with V short-circuit performance level.
• 320 A PR222DS/P-LSIG release rating.
• 400 A rated uninterrupted frame current.
• 4-pole circuit breaker configuration.
• PR222DS/P-LSIG solid-state electronic release.
• L function: long-time overload protection.
• S function: short-time short-circuit protection.
• I function: instantaneous short-circuit protection.
• G function: ground-fault protection.
• 200 kA Icu at 380–415 V AC.
• Fixed circuit-breaker construction for low-voltage switchboard integration.

Advanced LSIG Protection for Power Distribution

Electronic moulded case circuit breakers such as the ABB SACE Tmax T5V provide flexible protection for higher-current electrical distribution circuits. The PR222DS/P-LSIG release incorporates separate long-time, short-time, instantaneous and ground-fault protection functions, enabling the protection characteristics to be coordinated more precisely with the electrical installation than conventional fixed or thermomagnetic protection.

The 320 A electronic release makes the 1SDA054394R1 suitable for substantial distribution circuits, while the T5V platform's 200 kA ultimate breaking capacity at 380–415 V AC provides exceptionally high short-circuit interruption capability. Its additional ground-fault function makes it especially useful in distribution systems where comprehensive fault protection and selective coordination are required.

Typical Applications

• Industrial low-voltage power distribution systems.
• Main and sub-distribution switchboards.
• Four-pole feeder circuit protection.
• Manufacturing and process plant electrical systems.
• Commercial building power distribution.
• Infrastructure and utility electrical installations.
• Systems requiring electronic ground-fault protection.
• Installations with exceptionally high prospective short-circuit currents.