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1SDA054366R1 ABB T5L 400 PR221DS-I 320A 3-Pole MCCB
ABB 1SDA054366R1 is a T5L 400 fixed three-pole moulded case circuit breaker with a 320 A PR221DS-I electronic trip unit, adjustable overload and instantaneous short-circuit protection, and 120 kA breaking capacity at 400/415 V AC.
£3,372.60
Why Choose the ABB 1SDA054366R1 T5L 400 Moulded Case Circuit Breaker?
The ABB 1SDA054366R1, designated T5L 400 PR221DS-I In=320 3p F F, is a high-performance moulded case circuit breaker (MCCB) designed for reliable protection of low-voltage power distribution systems. Part of the proven ABB SACE Tmax T5 series, it combines a 400 A frame with a 320 A PR221DS-I electronic trip unit and high short-circuit interruption capability for demanding industrial and commercial installations.
The PR221DS-I solid-state electronic release provides long-time overload and instantaneous short-circuit protection. For this 320 A version, the overload release setting covers 128–320 A, while the instantaneous short-circuit release can be set across 320–3200 A, providing flexibility for protection coordination within the distribution system.
The T5L 400 is supplied as a fixed three-pole circuit breaker with front terminals. Its L performance level provides an ultimate short-circuit breaking capacity of 120 kA at 400/415 V AC, making the 1SDA054366R1 a robust choice for switchboards and distribution assemblies where high prospective fault currents must be safely interrupted.
Key Advantages
- Proven ABB SACE Tmax T5L moulded case circuit breaker for industrial and commercial power distribution.
- 320 A PR221DS-I electronic trip unit provides precise electronic overcurrent protection.
- Adjustable overload protection from 128–320 A supports application-specific circuit protection.
- Adjustable instantaneous short-circuit protection from 320–3200 A.
- High 120 kA ultimate breaking capacity at 400/415 V AC.
- Fixed three-pole construction with front terminals supports straightforward switchboard integration.
Key Features
- ABB SACE Tmax T5L 400 series.
- 400 A frame rating.
- 320 A rated PR221DS-I electronic release.
- Long-time overload protection.
- Instantaneous short-circuit protection.
- Overload release adjustment from 128–320 A.
- Instantaneous short-circuit adjustment from 320–3200 A.
- Three-pole circuit breaker configuration.
- Fixed mounting with front terminals.
- L short-circuit performance level.
Reliable Electronic Protection for Industrial Power Distribution
The ABB PR221DS-I electronic release provides controlled protection against both sustained overloads and severe short-circuit faults. On the 1SDA054366R1, the overload release can be set between 128–320 A, while instantaneous short-circuit protection is adjustable between 320–3200 A, allowing protection settings to be coordinated with the characteristics of the protected distribution circuit.
Combined with the T5L platform's 120 kA breaking capacity at 400/415 V AC, three-pole construction, fixed mounting and front terminals, the 1SDA054366R1 provides a robust protection solution for industrial switchboards, commercial distribution boards and other low-voltage systems exposed to substantial prospective fault currents.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and feeder protection in electrical switchboards.
- Three-phase distribution circuits.
- Manufacturing and process plant electrical systems.
- Commercial building power distribution.
- Installations requiring high short-circuit interruption capability and adjustable electronic protection.
Technical Specifications
| Series | SACE Tmax T5 |
|---|---|
| ABB order code | 1SDA054366R1 |
| 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 | PR221DS-I solid-state electronic release |
| Protection functions | Long-time overload and instantaneous short-circuit protection |
| Overload release setting | 128–320 A |
| Instantaneous short-circuit release setting | 320–3200 A |
| Number of poles | 3 |
| Rated operational voltage | 690 V AC |
| Ultimate short-circuit breaking capacity | 120 kA at 400/415 V AC |
| Short-circuit performance level | L |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
| Degree of protection | IP20 |
| Electrical durability | 7,000 cycles |
| Mechanical durability | 20,000 cycles |
| Dimensions (H × W × D) | 205 × 140 × 103.5 mm |
| Product net weight | 5.1 kg |
| EAN | 8015644554644 |
Frequently Asked Questions
What is the ABB 1SDA054366R1 used for?
The ABB 1SDA054366R1 is a three-pole moulded case circuit breaker designed to protect low-voltage power distribution circuits against overload and short-circuit conditions.
What is the rated current of the ABB 1SDA054366R1?
The breaker uses a 320 A PR221DS-I electronic trip unit within the T5L 400 frame, which has a rated uninterrupted current of 400 A.
What protection does the PR221DS-I trip unit provide?
The PR221DS-I electronic release provides long-time overload protection and instantaneous short-circuit protection for the connected distribution circuit.
What are the protection adjustment ranges of the ABB 1SDA054366R1?
The overload release setting covers 128–320 A, while the instantaneous short-circuit release can be adjusted from 320–3200 A.
What is the breaking capacity of the ABB 1SDA054366R1?
The T5L 400 provides an ultimate short-circuit breaking capacity of 120 kA at 400/415 V AC, giving it substantial fault-current interruption capability.
How many poles does the ABB 1SDA054366R1 have?
The 1SDA054366R1 is a three-pole MCCB intended for suitable three-phase low-voltage distribution applications.
How is the ABB 1SDA054366R1 installed?
The circuit breaker has a fixed mounting 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, high short-circuit interruption performance and flexible integration for demanding industrial and commercial low-voltage power distribution systems.
