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1sda054447r1 t5h 400 tma 400-4000 4 pole abb mccb
ABB 1SDA054447R1 SACE Tmax T5H moulded case circuit breaker with 400 A rating, TMA thermal magnetic release, four-pole fixed construction and front terminals for industrial power distribution.
£2,595.71
Why Choose the ABB 1SDA054447R1 Tmax T5H Moulded Case Circuit Breaker?
The ABB 1SDA054447R1 is a high performance Tmax T5H moulded case circuit breaker (MCCB) designed to provide reliable protection for low voltage electrical distribution systems. As part of the proven ABB SACE Tmax T series, this circuit breaker is engineered for industrial, commercial and infrastructure applications where dependable overload and short circuit protection is essential.
This model features a 400 A rated current and is fitted with a TMA thermal magnetic release, providing robust overload protection and adjustable instantaneous short circuit protection. Its fixed four-pole construction with front terminals makes it suitable for three-phase plus neutral distribution systems, switchboards and industrial feeder circuits.
With a rated operational voltage of up to 690 V AC and a high breaking capacity of 70 kA at 400 V AC, the ABB 1SDA054447R1 is ideal for main distribution panels, motor control centres and demanding low voltage power installations requiring compact and dependable circuit protection.
Key Advantages
- High performance ABB Tmax T5H moulded case circuit breaker.
- 400 A rated current for demanding power distribution applications.
- Four-pole fixed configuration for three-phase plus neutral systems.
- TMA thermal magnetic trip unit with adjustable short circuit protection.
- Front terminal connections for switchboard and panel mounting.
- High breaking capacity for dependable fault interruption.
Key Features
- ABB SACE Tmax T series.
- Model: T5H 400 TMA 400-4000.
- 400 A rated uninterrupted current.
- Four-pole (4P) MCCB configuration.
- TMA thermal magnetic release.
- 690 V AC rated operational voltage.
- Fixed version with front terminal connections.
- Designed in accordance with IEC 60947-2.
Reliable Protection for Industrial Power Distribution
The ABB Tmax T5H range is designed to protect electrical installations by detecting overload and short circuit conditions quickly and reliably. The TMA thermal magnetic release provides robust protection for distribution circuits, helping reduce equipment damage, improve safety and maintain operational continuity.
The ABB 1SDA054447R1 is well suited to applications requiring dependable four-pole protection in compact switchboard layouts. Its fixed front terminal design, high breaking capacity and proven ABB engineering make it a reliable choice for industrial control panels, commercial distribution boards and low voltage electrical infrastructure.
Typical Applications
- Industrial power distribution systems.
- Main incoming and outgoing feeders.
- Three-phase plus neutral electrical installations.
- Commercial distribution boards.
- Motor control centres.
- Infrastructure and utility power systems.
Technical Specifications
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| Current | 400 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 70 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T5H 400 TMA 400-4000 4p F F | |
| Product code | 1SDA054447R1 | |
| EAN | 8015644555511 | |
| Product type | Moulded case circuit breaker (MCCB) | |
| Rated current (In) | 400 A | |
| Rated uninterrupted current (Iu) | 400 A | |
| Frame size | T5 400 | |
| Number of poles | 4 | |
| Trip unit | TMA thermal magnetic release | |
| Release type | Thermal magnetic | |
| Instantaneous setting | 2000-4000 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) | 70 kA at 400 V AC | |
| Rated service breaking capacity (Ics) | 70 kA at 400 V AC | |
| Terminal type | Fixed front terminals | |
| Mounting | Panel mounted | |
| Electrical durability | 7,000 cycles | |
| Mechanical durability | 20,000 cycles | |
| Standards | IEC 60947-2 | |
| Dimensions (H × W × D) | 205 × 186 × 103.5 mm | |
| Weight | Approx. 6.2 kg |
Frequently Asked Questions
What is the ABB 1SDA054447R1 used for?
It is used to protect low voltage electrical distribution systems against overloads and short circuits in industrial, commercial and infrastructure installations.
What is the rated current of this MCCB?
The ABB 1SDA054447R1 has a rated uninterrupted current of 400 A.
How many poles does this circuit breaker have?
This model has a four-pole (4P) configuration, making it suitable for three-phase plus neutral electrical systems.
Which trip unit is fitted?
The breaker is fitted with a TMA thermal magnetic release with adjustable short circuit protection from 2000 to 4000 A.
Where is this MCCB typically installed?
It is commonly installed in switchboards, distribution panels, motor control centres and commercial low voltage electrical power systems.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted by electrical engineers, panel builders and industrial maintenance teams worldwide for dependable circuit protection, compact installation and long-term reliability in demanding power distribution applications.
