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T5N 400 TMA 400-4000 3p F F 1SDA054437R1 ABB High performance reliable protection
| Place of Origin | Germany |
| Brand Name | ABB |
| Certification | COO & COC |
| Model Number | T5N 400 TMA 400-4000 3p F F |
ABB T5N 400 circuit breaker
,TMA 400-4000 protection device
,ABB spare parts with warranty
T5N 400 TMA 400-4000 3p F F 1SDA054437R1 ABB High performance reliable protection
The ABB T5N 400 TMA 400-4000 3P F F (manufacturer part number 1SDA054437R1) is a high-performance molded case circuit breaker (MCCB) from ABB’s Tmax XT series, engineered for reliable short-circuit protection, overload protection, and motor control in low-voltage industrial, commercial, and infrastructure power systems. With a 400 A frame size, thermal-magnetic (TMA) trip unit, and 3-pole design, this breaker delivers robust performance, easy maintenance, and global compliance—ideal for switchgear panels, motor control centers (MCCs), and distribution boards.
Product Overview: ABB T5N 400 TMA 400-4000 3P F F (1SDA054437R1)
| ABB Series | Tmax XT T5N |
| Frame Size | 400 A |
| Rated Current (In) | 400 A (fixed thermal setting) |
| Number of Poles | 3P (3-pole) |
| Breaking Capacity (Icu) | 36 kA @ 415 V AC (standard for T5N) |
| Rated Operational Voltage (Ue) | 690 V AC |
| Rated Insulation Voltage (Ui) | 1000 V AC |
| Mounting Type | Fixed (F) – direct mounting on busbars or DIN rails with adapters |
| Accessories Included | Front rotary operating handle (F) – standard manual ON/OFF |
| Manufacturer Part Number | 1SDA054437R1 |
| Certifications | IEC/EN 60947-2, UL 489, CSA C22.2 No. 5, CCC, CE, RoHS compliant |
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