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1SDA054145R1 ABB T4L 320 PR221DS-LS/I In=320 4p F F Moulded Case Circuit Breaker
ABB T4L 320 PR221DS-LS/I In=320 4p F F moulded case circuit breaker with electronic long-time short-time and instantaneous protection for industrial low-voltage power distribution.
£3,534.62
Why Choose the ABB T4L 320 PR221DS-LS/I In=320 4p F F Moulded Case Circuit Breaker?
The ABB T4L 320 PR221DS-LS/I In=320 4p F F is a robust moulded case circuit breaker (MCCB) designed for dependable protection and switching of low-voltage electrical distribution systems. Part of the renowned ABB SACE Tmax T4 series, this circuit breaker combines compact construction with advanced solid-state protection technology for industrial, commercial and infrastructure applications.
Featuring the PR221DS-LS/I electronic trip unit, the ABB T4L 320 provides reliable long-time, short-time and instantaneous protection functions to help safeguard electrical equipment, cables and distribution systems against overload and short-circuit faults. Its fixed four-pole front-terminal design enables simple integration into switchboards and electrical assemblies.
With a 320 A rated current, T4 frame size and four-pole configuration, the T4L 320 PR221DS-LS/I is suitable for demanding low-voltage power distribution systems requiring high breaking performance and reliable circuit protection. :chatgpt-content-reference{index="0"}
Key Advantages
- Reliable ABB Tmax T4 moulded case circuit breaker technology for industrial protection.
- 320 A rated current for medium-duty low-voltage distribution applications.
- PR221DS-LS/I solid-state electronic trip unit providing accurate protection functions.
- Four-pole fixed front-terminal construction for straightforward installation.
- High short-circuit breaking capability for demanding electrical networks.
- Compact design with proven ABB reliability and long operational life.
Key Features
- ABB SACE Tmax T4 series moulded case circuit breaker.
- T4L 320 frame size.
- 320 A rated uninterrupted current.
- 4-pole configuration for three-phase plus neutral systems.
- PR221DS-LS/I electronic release.
- Long-time, short-time and instantaneous protection functions.
- Fixed front terminal connection.
- IEC compliant low-voltage circuit breaker design.
Reliable Protection for Industrial Power Systems
Moulded case circuit breakers such as the ABB T4L 320 provide essential electrical protection by disconnecting circuits during abnormal current conditions. The PR221DS-LS/I solid-state release enables dependable overload and short-circuit protection to improve system safety and operational continuity.
The Tmax T4 platform is engineered for industrial switchboards, power distribution assemblies and machinery applications where reliable protection, compact dimensions and long service life are required. Its robust construction supports integration into modern low-voltage electrical systems. :chatgpt-content-reference{index="1"}
Typical Applications
- Industrial power distribution panels.
- Manufacturing and process plant switchboards.
- Machinery electrical protection systems.
- Motor and equipment feeder protection.
- Commercial building distribution systems.
- Low-voltage switchgear assemblies.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| Order code | 1SDA054145R1 |
| Product type | Moulded case circuit breaker |
| Frame size | T4L 320 |
| 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) | 320 A |
| Rated ultimate short-circuit breaking capacity (Icu) | up to 200 kA at lower operating voltages and 70 kA at 690 V AC |
| Electrical durability | 6000 cycles |
| Mechanical durability | 20000 cycles |
| Dimensions (H × W × D) | approx. 205 × 140 × 103.5 mm |
| Weight | approx. 3.05 kg |
Frequently Asked Questions
What is the ABB T4L 320 PR221DS-LS/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 overloads and short circuits.
What is the rated current of this circuit breaker?
The ABB T4L 320 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 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.
