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1sda054551r1 t5n 400 pr222mp in=320 3 pole abb mccb
ABB 1SDA054551R1 T5N 400 Ekip M-LRIU 320 A three-pole fixed moulded case circuit breaker with front terminals and solid-state electronic release for industrial power distribution.
£2,279.45
Why Choose the ABB 1SDA054551R1 T5N 400 Ekip M-LRIU 320 A Circuit Breaker?
The ABB 1SDA054551R1 is a high-performance SACE Tmax T5N moulded case circuit breaker (MCCB) designed for dependable protection in industrial and commercial low-voltage power distribution systems. As part of the proven ABB Tmax T series, this fixed three-pole breaker combines robust mechanical construction with advanced electronic protection for demanding electrical installations.
This model features an Ekip M-LRIU solid-state release with a rated current of 320 A, providing accurate and flexible protection for motors, feeders and distribution circuits. Its front terminal connections and fixed mounting arrangement allow straightforward integration into switchboards, control panels and industrial electrical assemblies.
With a T5N 400 frame size, 3-pole configuration and rated operational voltage up to 690 V AC, the ABB 1SDA054551R1 is well suited to applications where reliable circuit protection, high breaking performance and long service life are essential.
Key Advantages
- Advanced ABB SACE Tmax T5N moulded case circuit breaker.
- 320 A rated current for industrial and commercial applications.
- Ekip M-LRIU electronic release for accurate circuit protection.
- Three-pole fixed configuration for three-phase installations.
- Front terminal connections for convenient switchboard mounting.
- Designed for reliable protection of motors, feeders and distribution circuits.
Key Features
- ABB SACE Tmax T series.
- T5N 400 frame size.
- 320 A rated current.
- Ekip M-LRIU solid-state release.
- 3-pole fixed circuit breaker.
- Front terminal connection type.
- Rated operational voltage up to 690 V AC.
- Designed in accordance with IEC 60947-2.
Advanced Electronic Protection for Low-Voltage Systems
The ABB 1SDA054551R1 uses an electronic Ekip M-LRIU release to provide precise protection for low-voltage electrical circuits. Compared with conventional thermal-magnetic protection, electronic releases can offer improved setting accuracy and greater flexibility, helping engineers adapt protection behaviour to the requirements of the installation.
Its three-pole configuration makes it suitable for three-phase systems, while the fixed front-terminal design supports efficient panel integration. The breaker is commonly used where dependable protection, high short-circuit performance and service continuity are priorities.
Typical Applications
- Industrial switchboards and control panels.
- Three-phase power distribution systems.
- Motor protection and feeder protection applications.
- Manufacturing and process facilities.
- Commercial building electrical installations.
- Infrastructure and utility power distribution.
Technical Specifications
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| Current | 320 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 36 kA | |
| Trip Unit | Electronic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T5N 400 Ekip M-LRIU In=320 3p F F | |
| Product ID | 1SDA054551R1 | |
| Product type | Moulded case circuit breaker | |
| Frame size | T5N 400 | |
| Rated uninterrupted current (Iu) | 400 A | |
| Rated current (In) | 320 A | |
| Release | Ekip M-LRIU | |
| Release type | Electronic / solid-state | |
| Number of poles | 3P | |
| Mounting type | Fixed | |
| Terminal connection | Front terminals | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated ultimate breaking capacity (Icu) | 36 kA at 400 V AC | |
| Electrical durability | 7000 cycles | |
| Mechanical durability | 20000 cycles | |
| Standards | IEC 60947-2 | |
| Dimensions (H × W × D) | approx. 205 × 140 × 103.5 mm | |
| Weight | approx. 5.1 kg |
Frequently Asked Questions
What is the ABB 1SDA054551R1 used for?
The ABB 1SDA054551R1 is used to protect low-voltage electrical systems, including motors, feeders and three-phase distribution circuits, against overload and short-circuit faults.
What is the rated current of this circuit breaker?
This model has a 320 A rated current within the ABB Tmax T5N 400 frame size.
How many poles does the ABB 1SDA054551R1 have?
The breaker has a three-pole configuration, making it suitable for three-phase electrical installations.
What type of release does this breaker use?
It uses an Ekip M-LRIU solid-state electronic release, providing accurate and flexible protection for low-voltage circuits.
Where is this breaker typically installed?
It is typically installed in industrial switchboards, control panels, distribution boards and commercial electrical systems.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted by panel builders, contractors and industrial engineers worldwide for dependable protection, robust construction and long-term performance in low-voltage power distribution systems.
