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1SDA054390R1 ABB T5V 400 PR221DS-I 320 A 4-Pole MCCB
ABB 1SDA054390R1 T5V 400 PR221DS-I is a 320 A four-pole fixed moulded case circuit breaker with front terminals and an electronic instantaneous short-circuit protection release.
£4,368.56
Why Choose the ABB T5V 400 PR221DS-I Circuit Breaker?
The ABB T5V 400 PR221DS-I, order code 1SDA054390R1, is a high-performance 4-pole moulded case circuit breaker (MCCB) designed for switching and short-circuit protection in demanding low-voltage electrical systems. Part of the ABB SACE Tmax T5 series, it combines a 400 A frame with a 320 A PR221DS-I electronic trip unit.
The PR221DS-I electronic release provides instantaneous short-circuit protection, enabling rapid interruption of severe fault currents. This protection arrangement is suitable for installations where overload protection is provided separately or where the breaker forms part of a coordinated protection system.
The T5V performance level is designed for installations with high prospective short-circuit currents. This version features a 4-pole fixed configuration with front terminals, making it suitable for three-phase systems requiring switching of the neutral conductor as well as dependable electronic short-circuit protection.
Key Advantages
- High-performance ABB SACE Tmax T5 moulded case circuit breaker.
- 320 A PR221DS-I electronic trip unit.
- 400 A rated uninterrupted frame current.
- Electronic instantaneous short-circuit protection.
- 4-pole construction for three-phase systems with neutral switching.
- T5V performance level for demanding high-fault-current installations.
- Fixed construction for permanent switchboard installation.
- Front terminals support straightforward power connection and integration.
Key Features
- ABB SACE Tmax T5V 400 platform.
- 320 A rated trip-unit current.
- 400 A frame rated uninterrupted current.
- PR221DS-I electronic trip unit.
- Instantaneous short-circuit protection function.
- 4-pole configuration.
- Fixed mounting.
- Front terminals.
- Designed for low-voltage power distribution and coordinated protection systems.
- ABB Tmax modular construction for industrial switchboard applications.
Electronic Instantaneous Short-Circuit Protection
The ABB PR221DS-I electronic release is dedicated to instantaneous short-circuit protection. When current reaches the configured fault threshold, the electronic release commands the circuit breaker to open rapidly, isolating the affected circuit and helping to limit damage to conductors, switchgear and connected equipment.
Because this PR221DS-I configuration centres on instantaneous protection, the wider protection scheme must provide any required overload protection separately. The four-pole T5V configuration is particularly useful in three-phase plus neutral distribution systems where all four conductors need to be switched by the circuit breaker.
Typical Applications
- Industrial low-voltage switchboards.
- Three-phase plus neutral distribution systems.
- Industrial machinery and automation power circuits.
- Manufacturing and process installations.
- Feeder and distribution circuit protection.
- Systems using separate coordinated overload protection.
- Installations with high prospective short-circuit currents.
Technical Specifications
| Series | SACE Tmax T5 |
|---|---|
| ABB order code | 1SDA054390R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T5 |
| Performance level | V |
| Rated uninterrupted frame current (Iu) | 400 A |
| Trip-unit rated current (In) | 320 A |
| Trip unit | PR221DS-I electronic |
| Protection function | Instantaneous short-circuit (I) |
| Number of poles | 4 |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
Frequently Asked Questions
What is the ABB 1SDA054390R1?
The ABB 1SDA054390R1 is a Tmax T5V 400 fixed 4-pole moulded case circuit breaker with front terminals and a 320 A PR221DS-I electronic trip unit.
What protection does the PR221DS-I provide?
The PR221DS-I provides electronic instantaneous short-circuit protection, allowing the breaker to respond rapidly to severe fault currents.
What is the current rating of ABB 1SDA054390R1?
The PR221DS-I trip unit has a rated current of 320 A, while the T5 frame has a rated uninterrupted current of 400 A.
How many poles does the ABB 1SDA054390R1 have?
This version has 4 poles, making it suitable for three-phase plus neutral systems where the neutral conductor is also switched.
Where is the ABB T5V 400 PR221DS-I typically used?
It is suited to industrial switchboards, machinery, feeder circuits and three-phase plus neutral distribution systems requiring high-performance instantaneous short-circuit protection.
Trusted ABB Electronic Circuit Protection
ABB SACE Tmax moulded case circuit breakers combine robust construction, flexible configurations and electronic protection technology for dependable industrial and commercial low-voltage power distribution.
