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1SDA054376R1 ABB T5L 400 PR222DS/P-LSI 320A 4-Pole MCCB
ABB 1SDA054376R1 is a T5L 400 fixed four-pole moulded case circuit breaker with a 320 A PR222DS/P-LSI electronic trip unit, adjustable LSI protection and 120 kA ultimate breaking capacity at 400 V AC.
£4,443.66
Why Choose the ABB 1SDA054376R1 T5L 400 Moulded Case Circuit Breaker?
The ABB 1SDA054376R1, designated T5L 400 PR222DS/P-LSI In=320 4p F F, is a high-performance moulded case circuit breaker (MCCB) designed for protection of demanding low-voltage power distribution systems. Part of the ABB SACE Tmax T5 series, it combines a 400 A frame with a 320 A PR222DS/P-LSI electronic trip unit and the high short-circuit interruption performance of the T5L platform.
The PR222DS/P-LSI solid-state electronic release provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. The overload release can be adjusted from 128–320 A, the short-time delayed short-circuit release from 192–3200 A, and the instantaneous short-circuit release from 480–3840 A, providing flexible protection coordination for complex distribution systems.
The T5L 400 is supplied as a fixed four-pole circuit breaker with front terminals. It has a rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 120 kA at 400 V AC, making it a robust choice for industrial and commercial switchboards exposed to substantial prospective fault currents.
Key Advantages
- High-performance ABB SACE Tmax T5L moulded case circuit breaker for demanding low-voltage distribution.
- 320 A PR222DS/P-LSI electronic release provides sophisticated electronic overcurrent protection.
- LSI protection functions cover long-time overload, short-time short-circuit and instantaneous short-circuit conditions.
- Wide electronic adjustment ranges support selective protection and system coordination.
- High 120 kA ultimate short-circuit breaking capacity at 400 V AC.
- Four-pole fixed construction with front terminals supports practical integration into three-phase distribution switchboards.
Key Features
- ABB SACE Tmax T5L 400 series.
- 400 A rated uninterrupted current.
- 320 A PR222DS/P-LSI solid-state electronic release.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- Overload release adjustment from 128–320 A.
- Short-time short-circuit adjustment from 192–3200 A.
- Instantaneous short-circuit adjustment from 480–3840 A.
- Four-pole fixed configuration with front terminals.
Reliable Electronic Protection for Industrial Power Distribution
The ABB PR222DS/P-LSI electronic release provides multiple protection functions for effective coordination within low-voltage distribution systems. Long-time protection responds to sustained overloads, short-time protection enables controlled response to short-circuit currents, and instantaneous protection provides rapid interruption of severe faults.
For the 1SDA054376R1, the electronic release provides an overload setting range of 128–320 A, a short-time delayed short-circuit setting range of 192–3200 A and an instantaneous short-circuit setting range of 480–3840 A. Combined with its four-pole construction and 120 kA Icu at 400 V AC, this provides a versatile protection solution for demanding industrial and commercial power distribution systems.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and feeder protection in electrical switchboards.
- Three-phase four-wire distribution systems.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Installations requiring adjustable LSI protection and high short-circuit interruption capability.
Technical Specifications
| Series | SACE Tmax T5 |
|---|---|
| ABB order code | 1SDA054376R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T5L 400 |
| Rated uninterrupted current (Iu) | 400 A |
| Trip-unit rated current (In) | 320 A |
| Trip unit | PR222DS/P-LSI solid-state electronic release |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| Overload release setting | 128–320 A |
| Short-time delayed short-circuit release setting | 192–3200 A |
| Instantaneous short-circuit release setting | 480–3840 A |
| Number of poles | 4 |
| Rated operational voltage | 690 V AC |
| Ultimate short-circuit breaking capacity (Icu) | 120 kA at 400 V AC, 50 Hz |
| Short-circuit performance level | L |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
| Standard | IEC 60947 |
| Electrical durability | 7,000 cycles |
| Mechanical durability | 20,000 cycles |
| Dimensions (H × W × D) | 205 × 186 × 103.5 mm |
| EAN | 8015644554743 |
Frequently Asked Questions
What is the ABB 1SDA054376R1 used for?
The ABB 1SDA054376R1 is a four-pole moulded case circuit breaker designed to protect demanding low-voltage power distribution circuits against overload and short-circuit conditions.
What is the rated current of the ABB 1SDA054376R1?
The breaker uses a 320 A PR222DS/P-LSI electronic trip unit within the T5L 400 frame, which has a rated uninterrupted current of 400 A.
What protection does the PR222DS/P-LSI trip unit provide?
The PR222DS/P-LSI provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, commonly identified as LSI protection.
What are the protection adjustment ranges of the ABB 1SDA054376R1?
The overload release can be adjusted from 128–320 A, the short-time delayed short-circuit release from 192–3200 A, and the instantaneous short-circuit release from 480–3840 A.
What is the breaking capacity of the ABB 1SDA054376R1?
The T5L 400 has an ultimate short-circuit breaking capacity of 120 kA at 400 V AC, 50 Hz, providing substantial fault-current interruption capability.
How many poles does the ABB 1SDA054376R1 have?
The 1SDA054376R1 is a four-pole MCCB suitable for applications requiring simultaneous switching across four conductors.
How is the ABB 1SDA054376R1 installed?
The circuit breaker is supplied in a fixed configuration with front terminals for permanent integration into low-voltage switchboards and distribution assemblies.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers provide dependable electronic overcurrent protection, flexible protection coordination and robust short-circuit interruption for demanding industrial and commercial low-voltage power distribution systems.
