ABB T5N 1SDA054437R1 400 MCCB 400A 3P 415VAC 36kA

The ABB T5N 400 TMA 400-4000 3p F F (article 1SDA054437R1) is a fixed three-pole circuit breaker from the ABB TMAX T5N range, rated at 400 A. It carries a thermomagnetic TMA release and is designed to provide overcurrent and short-circuit protection in three-phase power distribution systems, with a magnetic trip threshold (I3) adjustable between 2000 and 4000 A.

Technical specifications:

• Series: T5N 400 TMA 400-4000 3p F F
• ABB article number: 1SDA054437R1
• EAN: 8015644555412
• Rated current: 400 A
• Poles: 3 (three-pole)
• Mounting: Fixed
• Terminal type: Front terminals
• Release type: Thermomagnetic (TMA)
• Magnetic trip current (I3): 2000 to 4000 A

Features and benefits:

• Thermomagnetic TMA release delivers both thermal overload protection and magnetic short-circuit protection within a single unit.
• Magnetic trip threshold adjustable from 2000 to 4000 A, enabling calibration to match the requirements of the protected circuit.
• Fixed mounting provides a permanent, secure installation inside switchboards and distribution panels.
• Front terminal connection allows wiring access from the front face of the device, reducing installation effort in enclosed enclosures.
• Three-pole configuration protects all three phases simultaneously, making it well suited to three-phase distribution and power circuits.

Applications:

• Main and feeder protection in industrial and commercial low-voltage distribution switchboards.
• Three-phase panel boards requiring a 400 A fixed circuit breaker with front terminal wiring.
• Protection of outgoing feeders in medium and large power distribution installations.
• Industrial power distribution systems where an adjustable magnetic trip setting up to 4000 A is needed.

Also known as: ABB T5N 400 TMA 400-4000 3p F F, T5N 400 TMA 400-4000 3p F F 1SDA054437R1, ABB TMAX T5N 400 A circuit breaker, ABB 1SDA054437R1, three-pole thermomagnetic circuit breaker 400 A fixed.