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1sda054125r1 t4s 320 pr221ds-ls/i in=320 3 pole abb mccb
ABB 1SDA054125R1 Tmax T4S moulded case circuit breaker with PR221DS-LS/I electronic trip unit, 320 A rated current, three-pole fixed configuration and front terminals for low voltage power distribution.
£1,720.04
Why Choose the ABB 1SDA054125R1 Tmax T4S Moulded Case Circuit Breaker?
The ABB 1SDA054125R1 is a high-performance Tmax T4S moulded case circuit breaker (MCCB) designed for reliable protection of low voltage electrical distribution systems. Built as part of the proven ABB SACE Tmax T series, this breaker is suitable for industrial switchboards, commercial distribution panels, OEM machinery and automation systems requiring dependable circuit protection.
This MCCB is fitted with a PR221DS-LS/I electronic trip unit, providing accurate overload and short-circuit protection for AC electrical installations. The solid-state release supports dependable fault interruption, system selectivity and reliable operation in demanding industrial and commercial power distribution environments.
With a 320 A rated current, three-pole fixed configuration and front terminal connections, the ABB 1SDA054125R1 is ideal for feeder protection, main distribution circuits, switchboards and industrial control panels where robust circuit protection is required.
Key Advantages
- Reliable ABB Tmax T4S moulded case circuit breaker for industrial protection.
- 320 A rated current for low voltage power distribution.
- PR221DS-LS/I electronic trip unit for overload and short-circuit protection.
- Three-pole fixed MCCB with front terminal connections.
- High breaking performance for demanding switchboard applications.
- Compact construction suitable for distribution panels and control cabinets.
- Designed for dependable protection in commercial and industrial installations.
Key Features
- ABB SACE Tmax T series.
- T4S 320 frame size.
- 320 A rated current.
- 3-pole fixed moulded case circuit breaker.
- PR221DS-LS/I solid-state electronic release.
- Front terminal connection type.
- 690 V AC rated operational voltage.
- Suitable for industrial and commercial electrical distribution systems.
Reliable Three-Pole Protection for Low Voltage Systems
Moulded case circuit breakers such as the ABB 1SDA054125R1 are used to protect electrical circuits from overloads and short-circuit fault conditions. The electronic PR221DS-LS/I release provides consistent protection performance, helping engineers maintain safe and reliable low voltage power distribution.
The Tmax T4S range is widely used across industrial and commercial installations due to its compact footprint, high breaking performance and proven ABB engineering. Its fixed three-pole format makes it a practical choice for three-phase feeder protection, distribution boards and electrical control systems.
Typical Applications
- Industrial power distribution panels.
- Commercial electrical switchboards.
- Main feeder and sub-distribution protection.
- Three-phase low voltage distribution circuits.
- Motor control centres and machinery panels.
- OEM electrical equipment and control cabinets.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 320 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Electronic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T4S 320 PR221DS-LS/I In=320 3p F F | |
| Product ID | 1SDA054125R1 | |
| EAN | 8015644552244 | |
| Product type | Moulded Case Circuit Breaker | |
| Rated current (In) | 320 A | |
| Rated uninterrupted current (Iu) | 320 A | |
| Number of poles | 3P | |
| Release | PR221DS-LS/I | |
| Release type | Electronic | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Short-circuit performance level | S | |
| Rated ultimate breaking capacity (Icu) | 50 kA at 400 V AC | |
| Rated service breaking capacity (Ics) | 50 kA at 400 V AC | |
| Terminal connection | Front terminals | |
| Mounting type | Fixed | |
| Electrical durability | 6,000 cycles | |
| Mechanical durability | 20,000 cycles | |
| Power loss | 17.6 W per pole at rated operating conditions | |
| Dimensions (H × W × D) | 205 × 105 × 103.5 mm | |
| Weight | approx. 3.611 kg |
Frequently Asked Questions
What is the ABB 1SDA054125R1 used for?
The ABB 1SDA054125R1 is used to protect low voltage electrical distribution systems against overloads and short-circuit fault conditions.
What is the rated current of this MCCB?
This moulded case circuit breaker has a 320 A rated current.
What type of trip unit does it use?
The ABB 1SDA054125R1 is fitted with a PR221DS-LS/I electronic trip unit for overload and short-circuit protection.
How many poles does this circuit breaker have?
This model is a three-pole fixed MCCB designed for three-phase low voltage electrical systems.
Where is the ABB 1SDA054125R1 typically installed?
It is typically installed in switchboards, distribution panels, motor control centres, industrial control cabinets and OEM electrical equipment.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted by panel builders, electrical engineers and industrial maintenance teams for reliable protection, strong breaking performance and long service life in demanding low voltage installations.
