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1SDA054372R1 ABB T5L 400 PR221DS-LS/I In=320 4p F F Moulded Case Circuit Breaker
ABB T5L 400 PR221DS-LS/I In=320 4p F F moulded case circuit breaker with electronic long-time, short-time and instantaneous protection for reliable low-voltage power distribution.
£3,954.71
Why Choose the ABB T5L 400 PR221DS-LS/I In=320 4p F F Moulded Case Circuit Breaker?
The ABB T5L 400 PR221DS-LS/I In=320 4p F F is a high-performance moulded case circuit breaker (MCCB) designed for reliable protection and switching in demanding low-voltage electrical distribution systems. As part of the advanced ABB SACE Tmax T5 series, this circuit breaker combines robust construction with electronic solid-state protection technology for industrial, commercial and infrastructure applications.
Featuring the PR221DS-LS/I electronic trip unit, the ABB T5L 400 provides long-time, short-time and instantaneous protection functions to help safeguard cables, equipment and electrical installations against overloads and short-circuit faults. The fixed four-pole front-terminal configuration enables straightforward installation within switchboards and electrical assemblies.
With a 320 A rated current, 400 A frame size and four-pole configuration, the T5L 400 PR221DS-LS/I is suitable for protecting feeders, machinery and distribution circuits where high breaking performance and dependable circuit interruption are required.
Key Advantages
- Reliable ABB Tmax T5 moulded case circuit breaker technology for demanding protection applications.
- PR221DS-LS/I electronic protection providing adjustable overload and short-circuit protection.
- 320 A rated current suitable for higher-load low-voltage distribution systems.
- Four-pole fixed front-terminal configuration for efficient switchboard installation.
- High short-circuit breaking performance for industrial electrical networks.
- Compact design with ABB reliability and long operational durability.
Key Features
- ABB SACE Tmax T5 series moulded case circuit breaker.
- T5L 400 frame size.
- 320 A rated current (In).
- 4-pole configuration for three-phase plus neutral applications.
- PR221DS-LS/I electronic release.
- Long-time, short-time and instantaneous protection functions.
- Fixed front terminal connection.
- Designed for IEC low-voltage circuit protection applications.
Reliable Protection for Industrial Power Systems
Moulded case circuit breakers such as the ABB T5L 400 provide essential electrical protection by automatically disconnecting circuits during overload and short-circuit conditions. The PR221DS-LS/I electronic trip unit enables accurate protection settings to improve system safety and reduce the risk of equipment damage.
The Tmax T5 platform is engineered for industrial switchboards, machinery power distribution and commercial electrical installations where compact dimensions, dependable operation and effective fault protection are required.
Typical Applications
- Industrial distribution switchboards.
- Manufacturing plant electrical systems.
- Machinery and automation control panels.
- Motor feeder and equipment protection circuits.
- Commercial low-voltage distribution systems.
- Electrical switchgear assemblies.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| Order code | 1SDA054372R1 |
| Product type | Moulded case circuit breaker |
| Frame size | T5L 400 |
| Rated current (In) | 320 A |
| Number of poles | 4P |
| Trip unit | PR221DS-LS/I electronic release |
| Terminal connection | Fixed front terminals |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 8 kV |
| Rated uninterrupted current (Iu) | 400 A |
| Rated ultimate short-circuit breaking capacity (Icu) | up to 120 kA depending on operating voltage |
| Rated service short-circuit breaking capacity (Ics) | up to 120 kA depending on operating voltage |
| Electrical durability | approx. 7000 operations |
| Mechanical durability | approx. 20000 operations |
| Mounting type | Fixed mounting |
Frequently Asked Questions
What is the ABB T5L 400 PR221DS-LS/I In=320 4p F F used for?
This ABB Tmax T5 moulded case circuit breaker is used for protecting and switching low-voltage electrical distribution circuits against overloads and short circuits.
What is the rated current of this circuit breaker?
The ABB T5L 400 PR221DS-LS/I In=320 4p F F has a rated current of 320 A.
How many poles does this ABB circuit breaker have?
This model is a four-pole (4P) circuit breaker suitable for three-phase systems requiring neutral protection.
Which trip unit is fitted to this circuit breaker?
The circuit breaker is fitted with the PR221DS-LS/I electronic trip unit providing long-time, short-time and instantaneous protection functions.
Where is the ABB T5L 400 typically installed?
This circuit breaker is typically installed in industrial switchboards, distribution panels and low-voltage electrical assemblies.
Trusted by Electrical Engineers Worldwide
ABB Tmax circuit breakers are widely selected by electrical engineers and system integrators for dependable protection, efficient power distribution and long-term performance in industrial installations.
