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1SDA054146R1 ABB T4L 320 PR221DS-I In=320 4p F F Moulded Case Circuit Breaker
ABB T4L 320 PR221DS-I In=320 4p F F moulded case circuit breaker with electronic instantaneous protection for reliable low-voltage industrial power distribution.
£3,534.62
Why Choose the ABB T4L 320 PR221DS-I In=320 4p F F Moulded Case Circuit Breaker?
The ABB T4L 320 PR221DS-I In=320 4p F F is a reliable moulded case circuit breaker (MCCB) designed for efficient protection and switching in low-voltage electrical distribution systems. Belonging to the trusted ABB SACE Tmax T4 series, this circuit breaker provides robust performance, compact dimensions and dependable protection for industrial, commercial and infrastructure installations.
Equipped with the PR221DS-I electronic trip unit, the ABB T4L 320 provides instantaneous protection against short-circuit faults, helping safeguard electrical equipment and distribution networks. Its fixed four-pole front-terminal configuration allows straightforward installation within switchboards and low-voltage assemblies.
With a 320 A rated current, T4L 320 frame size and four-pole design, the T4L 320 PR221DS-I is suitable for applications requiring dependable circuit interruption, high breaking performance and reliable electrical system protection.
Key Advantages
- Reliable ABB Tmax T4 moulded case circuit breaker technology for industrial power protection.
- 320 A rated current suitable for medium-duty low-voltage distribution applications.
- PR221DS-I electronic trip unit providing accurate instantaneous short-circuit protection.
- Four-pole fixed front-terminal configuration for simple switchboard integration.
- High breaking capability for demanding electrical installations.
- Compact design with ABB’s proven reliability and long service life.
Key Features
- ABB SACE Tmax T4 series moulded case circuit breaker.
- T4L 320 frame size.
- 320 A rated current (In).
- 4-pole construction for three-phase and neutral applications.
- PR221DS-I electronic release.
- Instantaneous short-circuit protection function.
- Fixed front terminal connection.
- Designed for integration into IEC low-voltage switchgear systems.
Reliable Protection for Industrial Power Systems
Moulded case circuit breakers such as the ABB T4L 320 provide essential protection by automatically interrupting electrical circuits when dangerous fault currents occur. The PR221DS-I electronic release delivers dependable instantaneous short-circuit protection to help prevent damage to connected equipment.
The ABB Tmax T4 family is engineered for industrial switchboards, machinery power distribution and commercial electrical systems where compact installation, 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 | 1SDA054146R1 |
| Product type | Moulded case circuit breaker |
| Frame size | T4L 320 |
| Rated current (In) | 320 A |
| Number of poles | 4P |
| Trip unit | PR221DS-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) | 320 A |
| Rated ultimate short-circuit breaking capacity (Icu) | up to 200 kA depending on operating voltage |
| Mechanical durability | 20000 operations |
| Electrical durability | 6000 operations |
Frequently Asked Questions
What is the ABB T4L 320 PR221DS-I In=320 4p F F used for?
This ABB Tmax T4 moulded case circuit breaker is used for protecting and switching low-voltage electrical distribution systems against short-circuit faults.
What is the rated current of this circuit breaker?
The ABB T4L 320 PR221DS-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 with neutral requirements.
Which trip unit is fitted to this circuit breaker?
The circuit breaker is fitted with the PR221DS-I electronic trip unit providing instantaneous short-circuit protection.
Where is the ABB T4L 320 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.
