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1SDA054149R1 ABB T4V 320 PR221DS-LS/I 320 A 3-Pole MCCB
ABB 1SDA054149R1 is a T4V 320 fixed three-pole moulded case circuit breaker with a 320 A PR221DS-LS/I electronic trip unit and 200 kA breaking capacity at 415 V AC for demanding low-voltage power distribution protection.
£3,311.96
Why Choose the ABB 1SDA054149R1 T4V 320 Moulded Case Circuit Breaker?
The ABB 1SDA054149R1, designated T4V 320 PR221DS-LS/I In=320 3p F F, is a high-performance moulded case circuit breaker (MCCB) designed for protection and control of low-voltage power distribution circuits against overloads and short circuits. As part of the proven ABB SACE Tmax T4 series, it combines a compact 320 A frame with electronic protection and very high short-circuit interruption capability for demanding commercial and industrial installations.
This circuit breaker is equipped with the PR221DS-LS/I electronic trip unit rated at 320 A. Its LS/I protection functions provide long-time overload, short-time and instantaneous short-circuit protection, helping safeguard conductors, switchgear and downstream electrical equipment while supporting effective protection coordination within the distribution system.
The T4V 320 is supplied as a fixed three-pole circuit breaker with front terminals. Its V performance level provides an ultimate short-circuit breaking capacity of 200 kA at 415 V AC, making the 1SDA054149R1 particularly suitable for low-voltage switchboards where very high prospective fault currents may occur.
Key Advantages
- High-performance ABB SACE Tmax T4V moulded case circuit breaker.
- 320 A rated current for substantial industrial and commercial distribution loads.
- PR221DS-LS/I electronic trip unit provides comprehensive overcurrent protection.
- Very high 200 kA ultimate short-circuit breaking capacity at 415 V AC.
- Three-pole fixed configuration for three-phase low-voltage distribution systems.
- Front-terminal arrangement supports straightforward integration into switchboards and distribution assemblies.
Key Features
- ABB SACE Tmax T4V 320 series.
- 320 A rated current.
- PR221DS-LS/I electronic trip unit.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Three-pole circuit breaker configuration.
- Fixed mounting construction.
- Front terminals for the main circuit connections.
- 200 kA ultimate breaking capacity at 415 V AC.
Reliable Circuit Protection for Industrial Power Distribution
Moulded case circuit breakers such as the ABB T4V 320 protect low-voltage distribution circuits by detecting and interrupting excessive current caused by overload and short-circuit conditions. The PR221DS-LS/I electronic release provides long-time, short-time and instantaneous protection functions, helping maintain reliable operation while protecting conductors and connected electrical equipment.
The T4V performance level is designed for applications requiring exceptionally high short-circuit interruption capability. Combined with its compact T4 construction, three-pole arrangement, fixed installation and front terminals, the 1SDA054149R1 provides an effective protection solution for demanding industrial and commercial low-voltage distribution systems.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and feeder protection in electrical switchboards.
- Three-phase distribution panels.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Installations with very high prospective short-circuit currents.
Technical Specifications
| Series | SACE Tmax T4 |
|---|---|
| ABB order code | 1SDA054149R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T4V 320 |
| Rated current | 320 A |
| Number of poles | 3 |
| Trip unit | PR221DS-LS/I electronic release |
| Protection functions | Long-time, short-time and instantaneous |
| Ultimate short-circuit breaking capacity | 200 kA at 415 V AC |
| Short-circuit performance level | V |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
Frequently Asked Questions
What is the ABB 1SDA054149R1 used for?
The ABB 1SDA054149R1 is a three-pole moulded case circuit breaker designed for protection and control of low-voltage power distribution circuits against overload and short-circuit conditions.
What is the rated current of the ABB 1SDA054149R1?
The T4V 320 circuit breaker is equipped with a 320 A PR221DS-LS/I electronic trip unit.
What protection functions does the PR221DS-LS/I trip unit provide?
The PR221DS-LS/I provides long-time overload, short-time and instantaneous short-circuit protection for low-voltage distribution circuits.
What is the breaking capacity of the ABB 1SDA054149R1?
The T4V 320 provides an ultimate short-circuit breaking capacity of 200 kA at 415 V AC, making it suitable for installations with very high prospective fault currents.
How many poles does the ABB 1SDA054149R1 have?
The 1SDA054149R1 is a three-pole circuit breaker intended for three-phase low-voltage power distribution systems.
How is the ABB 1SDA054149R1 installed?
This model has a fixed mounting configuration with front terminals, making it suitable for permanent integration into electrical switchboards and distribution assemblies.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are widely used in commercial and industrial power distribution systems to provide dependable overcurrent protection, high short-circuit performance and practical integration into low-voltage switchboards and electrical installations.
