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ABB 1SDA054437R1 Tmax T5N 400 moulded case circuit breaker with TMA thermomagnetic release, 400 A rated current, three-pole configuration and fixed front terminals for industrial power distribution.
£1,677.06
The ABB 1SDA054437R1 is a reliable Tmax T5N moulded case circuit breaker (MCCB) designed for industrial power distribution systems, electrical switchboards and OEM control panels. Featuring a 400 A rated current, 400 A frame size and three-pole configuration, this MCCB provides dependable low voltage circuit protection for demanding electrical installations.
As part of the proven ABB SACE Tmax T series, this circuit breaker combines robust construction, compact dimensions and dependable thermomagnetic protection. The integrated TMA thermomagnetic release provides overload and short circuit protection, helping safeguard cables, machinery and downstream electrical circuits.
With fixed front terminals, a rated operational voltage of up to 690 V AC and compliance with IEC 60947, the ABB 1SDA054437R1 is suitable for panel builders, electrical contractors and maintenance engineers requiring reliable MCCB protection in commercial and industrial environments.
The ABB Tmax T5N range is engineered to protect low voltage electrical installations from overload and short circuit conditions while supporting reliable power distribution. The TMA thermomagnetic release provides dependable protection characteristics for industrial distribution boards, switchgear assemblies and machinery panels.
The 1SDA054437R1 offers a strong combination of electrical performance, compact installation and durable ABB construction. Its three-pole design makes it suitable for three-phase distribution systems requiring robust circuit protection in demanding industrial and commercial environments.
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| Current | 400 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 36 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T5N 400 TMA 400-4000 3P F F | |
| Product code | 1SDA054437R1 | |
| EAN | 8015644555412 | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current (In) | 400 A | |
| Rated uninterrupted current (Iu) | 400 A | |
| Frame size | 400 A | |
| Number of poles | 3 | |
| Trip unit | TMA thermomagnetic release | |
| Instantaneous setting | 2000-4000 A | |
| Release type | Thermomagnetic | |
| Rated operational voltage | Up to 690 V AC / 750 V DC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated service breaking capacity (Ics) | 36 kA at 400 V AC | |
| Rated ultimate breaking capacity (Icu) | 36 kA at 400 V AC | |
| Short-time withstand current (Icw) | 5 kA for 1 second | |
| Short-circuit performance level | N | |
| Power loss | 19.6 W per pole at rated operating conditions | |
| Terminal type | Fixed front terminals | |
| Standards | IEC 60947 | |
| Dimensions (H × W × D) | approx. 205 × 140 × 103.5 mm | |
| Weight | approx. 4.5 kg |
It is used to protect low voltage three-phase electrical circuits, switchboards and industrial distribution systems against overload and short circuit conditions.
The ABB 1SDA054437R1 has a 400 A rated current and is built on a 400 A frame.
This model has a three-pole (3P) configuration for three-phase electrical systems.
It is fitted with a TMA thermomagnetic trip unit, providing overload and short circuit protection.
It is commonly installed in electrical switchboards, power distribution panels, motor control centres and OEM machinery control panels.
ABB SACE Tmax moulded case circuit breakers are trusted by electrical engineers, panel builders and industrial operators worldwide for reliable circuit protection, high breaking performance and long-term dependability.
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