ABB T5N 1SDA054317R1 400 MCCB 400A 3P 415VAC 36kA

The ABB T5N 400 PR221DS-LS/I In=400 3p F F (article 1SDA054317R1) is a fixed, three-pole TMAX molded case circuit breaker rated at 400 A. It is fitted with a solid-state PR221DS trip unit that provides long-time overload, short-time delay, and instantaneous short-circuit protection within a single release. Designed for AC power systems, it combines front terminal connection with a fixed mounting configuration for permanent installation in low-voltage switchgear.

Technical specifications:

• Series: T5N 400 PR221DS-LS/I In=400 3p F F
• ABB article number: 1SDA054317R1
• EAN: 8015644552626
• Rated current (In): 400 A
• Poles: 3 (three-pole)
• Mounting: Fixed
• Terminal connection: Front terminals
• Trip unit: PR221DS solid-state, LS/I functions (long-time, short-time, instantaneous)
• Supply type: AC

Features and benefits:

• Solid-state PR221DS trip unit with LS/I protection covers long-time overload, short-time delay short-circuit, and instantaneous short-circuit protection in a single electronic release
• Fixed mounting ensures a secure, permanent installation in switchgear enclosures and distribution panels
• Front terminal connection allows direct cable access from the front of the assembly without rear panel removal
• Three-pole configuration handles three-phase circuits in a single device
• Electronic trip unit operates on AC, enabling precise protection coordination in low-voltage power distribution

Applications:

• Main and branch circuit protection in industrial low-voltage switchgear assemblies
• Three-phase feeder protection in commercial and industrial power distribution boards
• Motor circuit protection in manufacturing and process plant installations
• Busbar and incomer protection in low-voltage switchboards

Also known as: ABB T5N 400 PR221DS-LS/I In=400 3p F F, T5N 400 PR221DS-LS/I In=400 3p F F 1SDA054317R1, ABB TMAX T5N 400A MCCB, ABB 400 A fixed 3-pole circuit breaker, ABB 1SDA054317R1.