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1sda054479r1 t5s 400 tma 320-3200 4 pole abb mccb
ABB 1SDA054479R1 SACE Tmax T5S moulded case circuit breaker with 320 A thermomagnetic release, four-pole configuration, fully rated neutral and fixed front terminals for industrial power distribution.
£2,449.96
Why Choose the ABB 1SDA054479R1 Tmax T5S Moulded Case Circuit Breaker?
The ABB 1SDA054479R1 is a dependable SACE Tmax T5S moulded case circuit breaker (MCCB) engineered to provide reliable protection for industrial power distribution systems, switchboards, machinery and commercial electrical installations. As part of the proven ABB Tmax T series, it combines compact dimensions with robust thermomagnetic protection for demanding low voltage applications.
This model features a 400 A frame, 320 A rated current, a four-pole configuration with a fully rated neutral and a TMA adjustable thermomagnetic release. The adjustable magnetic trip range enables effective overload and short-circuit protection while supporting improved coordination with downstream protective devices.
Designed for operation on systems up to 690 V AC, the ABB 1SDA054479R1 is ideal for industrial switchboards, commercial buildings, OEM equipment and infrastructure projects where dependable electrical protection and operational continuity are essential.
Key Advantages
- 320 A moulded case circuit breaker within a 400 A frame.
- Four-pole design with fully rated neutral.
- TMA adjustable thermomagnetic release for dependable protection.
- Reliable overload and short-circuit protection.
- Front terminal connections simplify installation.
- Compact Tmax T5 frame reduces panel space requirements.
- Designed to IEC standards for industrial applications.
Key Features
- ABB SACE Tmax T5S series.
- Product code: 1SDA054479R1.
- Rated frame current: 400 A.
- Rated current: 320 A.
- Four-pole (4P) with fully rated neutral.
- TMA thermomagnetic release.
- Magnetic trip setting: 1600-3200 A.
- Fixed mounting with front terminals.
- Rated operational voltage: 690 V AC / 750 V DC.
Reliable Protection for Industrial Power Distribution
The ABB Tmax T5S range protects low voltage electrical systems from overloads and short circuits using dependable thermomagnetic protection. Thermal protection responds to sustained overloads while the magnetic element rapidly disconnects high fault currents to minimise equipment damage.
With its fully rated neutral pole, compact design and proven ABB reliability, the 1SDA054479R1 is well suited to industrial switchboards, commercial buildings, OEM machinery and infrastructure projects requiring safe, reliable power distribution.
Typical Applications
- Industrial power distribution panels.
- Main and sub-distribution switchboards.
- Three-phase systems with fully rated neutral.
- OEM machinery and automation equipment.
- Motor control centres.
- Commercial buildings and infrastructure.
- Generator and transformer feeder protection.
Technical Specifications
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| Current | 320 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T5S 400 TMA 320-3200 4P F F InN=100%In | |
| Product code | 1SDA054479R1 | |
| EAN | 8015644555160 | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated frame current | 400 A | |
| Rated current (In) | 320 A | |
| Rated uninterrupted current (Iu) | 400 A | |
| Number of poles | 4 | |
| Neutral pole | Fully rated (100% In) | |
| Release type | Thermomagnetic (TMA) | |
| Magnetic trip range | 1600-3200 A | |
| Rated operational voltage | 690 V AC / 750 V DC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated ultimate breaking capacity (Icu) | 50 kA at 415 V AC | |
| Rated service breaking capacity (Ics) | 50 kA at 415 V AC | |
| Short-circuit performance level | S | |
| Electrical durability | 7000 cycles | |
| Mechanical durability | 20000 cycles | |
| Mounting | Fixed | |
| Terminal type | Front terminals | |
| Standards | IEC 60947-2 | |
| Dimensions (H × W × D) | 205 × 186 × 103.5 mm | |
| Weight | approx. 5.8 kg |
Frequently Asked Questions
What is the ABB 1SDA054479R1 used for?
It protects industrial and commercial electrical systems against overloads and short circuits in low voltage power distribution installations.
What is the rated current of this circuit breaker?
The ABB 1SDA054479R1 has a 320 A rated current within a 400 A frame.
Does this model include a fully rated neutral?
Yes. This four-pole MCCB includes a 100% rated neutral pole suitable for applications requiring full neutral current capacity.
Which trip unit is fitted?
This model uses a TMA adjustable thermomagnetic release with a magnetic trip range of 1600-3200 A.
Where is this circuit breaker typically installed?
It is commonly installed in industrial switchboards, distribution panels, OEM machinery, commercial buildings and infrastructure power distribution systems.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted worldwide by panel builders, electrical contractors and industrial engineers for dependable circuit protection, long service life and reliable performance in demanding power distribution applications.
