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1SDA054388R1 ABB T5V400 PR221DS-LS/I 320 A 4-Pole MCCB
ABB 1SDA054388R1 SACE Tmax T5V400 fixed four-pole 320 A moulded case circuit breaker with PR221DS-LS/I electronic trip unit and 200 kA ultimate breaking capacity at 415 V AC.
£4,368.56
Why Choose the ABB T5V400 PR221DS-LS/I 320 A 1SDA054388R1 Circuit Breaker?
The ABB 1SDA054388R1 is a high-performance SACE Tmax T5V 400 moulded case circuit breaker (MCCB) designed for reliable protection and isolation of demanding low-voltage electrical distribution systems. Configured as a fixed four-pole breaker with front terminals, it combines a 320 A rated current with ABB's PR221DS-LS/I electronic trip unit.
Part of the proven ABB SACE Tmax T5 series, this T5V400 provides electronic LS/I protection for overload and short-circuit conditions. The PR221DS release provides adjustable long-time overload protection together with selectable short-circuit protection characteristics, offering greater flexibility for distribution-system coordination than conventional fixed protection.
The T5V performance level is engineered for installations with exceptionally high prospective fault currents, providing an ultimate short-circuit breaking capacity (Icu) of 200 kA at 415 V AC. Combined with its 400 A frame, 320 A electronic release and four-pole construction, the 1SDA054388R1 is well suited to demanding industrial and commercial power distribution.
Key Advantages
- High-performance ABB SACE Tmax T5V 400 moulded case circuit breaker.
- 320 A rated current on a robust 400 A frame.
- Four-pole configuration for multipole low-voltage distribution systems.
- PR221DS-LS/I electronic trip unit for adjustable electronic protection.
- Long-time overload and short-circuit protection functions.
- 200 kA Icu at 415 V AC for installations with very high prospective fault currents.
- Fixed construction for permanent switchboard installation.
- Front terminals simplify integration into electrical distribution assemblies.
Key Features
- ABB SACE Tmax T5V 400 circuit breaker platform.
- 320 A rated current.
- 400 A frame rated uninterrupted current.
- 4-pole construction.
- PR221DS-LS/I electronic release.
- Electronic long-time overload protection.
- Electronic short-circuit protection.
- 200 kA ultimate breaking capacity at 415 V AC.
- Fixed mounting configuration.
- Front-terminal connection arrangement.
Reliable Circuit Protection for Power Distribution
The ABB SACE Tmax T5V platform is designed for demanding low-voltage power distribution where high interruption performance and dependable electronic protection are essential. With a 400 A frame and 320 A PR221DS-LS/I release, the 1SDA054388R1 provides substantial circuit capacity while allowing protection to be matched more closely to the requirements of the installation.
Its 200 kA breaking capacity at 415 V AC makes the T5V particularly suitable for systems with high prospective short-circuit currents. The four-pole arrangement, fixed mounting and front terminals provide a practical configuration for incorporation into industrial switchboards, distribution panels and other low-voltage assemblies.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Three-phase four-wire electrical distribution panels.
- Manufacturing and process installations.
- Commercial and infrastructure power distribution.
- Installations with high prospective short-circuit currents.
Technical Specifications
| Series | SACE Tmax T5 |
|---|---|
| ABB order code | 1SDA054388R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T5 400 |
| Performance level | V |
| Rated current (In) | 320 A |
| Rated uninterrupted current (Iu) | 400 A at 40 °C |
| Number of poles | 4 |
| Trip unit | PR221DS-LS/I electronic release |
| Protection functions | LS/I — long-time overload and short-circuit protection |
| Ultimate breaking capacity (Icu) at 415 V AC | 200 kA |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Electrical durability | 7,000 cycles |
| Mechanical durability | 20,000 cycles |
| Dimensions (H × W × D) | approx. 205 × 184 × 103.5 mm |
| Weight | approx. 6.2 kg |
Frequently Asked Questions
What is the ABB 1SDA054388R1 used for?
The ABB 1SDA054388R1 is a 320 A four-pole electronic moulded case circuit breaker designed to protect and isolate demanding low-voltage electrical distribution circuits against overload and short-circuit conditions.
What is the current rating of the ABB T5V400 1SDA054388R1?
The circuit breaker has a 320 A rated electronic trip unit and is built on the ABB SACE Tmax T5V 400 frame, which has a rated uninterrupted current of 400 A.
What protection does the PR221DS-LS/I trip unit provide?
The PR221DS-LS/I is an electronic trip unit providing long-time overload protection together with short-circuit protection for low-voltage distribution circuits.
What is the breaking capacity of the ABB 1SDA054388R1?
The T5V performance version provides an ultimate short-circuit breaking capacity (Icu) of 200 kA at 415 V AC, making it suitable for installations with very high prospective fault currents.
How is the ABB 1SDA054388R1 installed?
The 1SDA054388R1 is a fixed four-pole circuit breaker with front terminals, designed for integration into low-voltage switchboards and electrical distribution panels.
Trusted Protection from ABB
ABB SACE Tmax moulded case circuit breakers combine high interruption performance with dependable electronic protection, providing robust circuit protection for demanding industrial and commercial low-voltage distribution systems.
