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1sda055431r1 t4h 250 ul/csapr221ds-ls/i 250 3 pole abb mccb
ABB 1SDA055431R1 Tmax T4H 250 UL three-pole moulded case circuit breaker with 250 A PR221DS-LS/I electronic trip unit for industrial low voltage power distribution.
Why Choose the ABB 1SDA055431R1 Tmax T4H 250 UL Moulded Case Circuit Breaker?
The ABB 1SDA055431R1 is a high performance Tmax T4H 250 UL moulded case circuit breaker (MCCB) designed for dependable protection in low voltage electrical distribution systems. As part of the proven ABB SACE Tmax T series, this three-pole breaker is engineered for industrial switchboards, machinery panels, commercial installations and OEM electrical assemblies requiring reliable circuit protection.
This MCCB is fitted with an ABB PR221DS-LS/I electronic trip unit, providing long-time, short-time and instantaneous protection functions for accurate overload and short circuit protection. Its electronic release supports consistent trip performance, making it suitable for installations where dependable protection and selective coordination are important.
With a 250 A frame size, 250 A rated current and high performance T4H interrupting capacity class, the ABB 1SDA055431R1 is ideal for demanding electrical systems requiring robust construction, compact installation and trusted ABB engineering.
Key Advantages
- Reliable moulded case circuit breaker for low voltage power distribution.
- 250 A rated current within a 250 A frame size.
- Three-pole configuration for industrial three-phase systems.
- Electronic PR221DS-LS/I trip unit for accurate circuit protection.
- Long-time, short-time and instantaneous protection functions.
- Suitable for UL / CSA applications and professional switchgear assemblies.
Key Features
- ABB SACE Tmax T4H series.
- Product ID: 1SDA055431R1.
- 250 A rated current.
- 250 A frame size.
- Three-pole moulded case circuit breaker.
- Electronic PR221DS-LS/I protection release.
- Long-time, short-time and instantaneous protection functions.
- High performance T4H interrupting capacity class.
- Designed for UL / CSA circuit protection applications.
- Suitable for switchboards, control panels and industrial distribution systems.
Reliable Circuit Protection for Industrial Power Systems
Moulded case circuit breakers such as the ABB Tmax T4H protect electrical circuits by disconnecting the supply during overload or short circuit conditions. This helps reduce the risk of cable damage, equipment failure and electrical hazards within low voltage distribution systems.
The ABB 1SDA055431R1 is designed for professional switchgear and control panel applications. Its electronic protection release, high performance breaker frame and three-pole construction make it a dependable choice for industrial machinery, commercial distribution systems and OEM electrical assemblies.
Typical Applications
- Industrial switchboards and panel boards.
- Commercial low voltage distribution systems.
- Motor control centres and machinery panels.
- Manufacturing and process automation systems.
- OEM electrical control equipment.
- UL / CSA compliant circuit protection assemblies.
Technical Specifications
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| Current | 250 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Trip Unit | Electronic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T4H250UL/CSAPR221DS-LS/I2503P | |
| Product ID | 1SDA055431R1 | |
| Product type | Moulded Case Circuit Breaker | |
| Frame size | T4 250 | |
| Rated current (In) | 250 A | |
| Number of poles | 3 | |
| Trip unit | PR221DS-LS/I | |
| Protection functions | Long-time, short-time and instantaneous | |
| Short-circuit performance level | H | |
| Standards / approvals | UL / CSA | |
| Application | Low voltage power distribution | |
| Mounting type | Fixed installation | |
| Breaker family | ABB Tmax T4 |
Frequently Asked Questions
What is the ABB 1SDA055431R1 used for?
This MCCB is used to protect low voltage electrical circuits from overloads and short circuits in industrial, commercial and OEM power distribution systems.
What is the rated current of this breaker?
The ABB 1SDA055431R1 has a rated current of 250 A within a 250 A frame size.
How many poles does this MCCB have?
This model is a three-pole moulded case circuit breaker, making it suitable for three-phase electrical systems.
What type of trip unit is included?
It is fitted with an ABB PR221DS-LS/I electronic trip unit, providing long-time, short-time and instantaneous protection functions.
Where is the ABB 1SDA055431R1 typically installed?
It is typically installed in switchboards, distribution panels, control cabinets, motor control centres and industrial electrical systems requiring reliable circuit protection.
Trusted by Electrical Professionals Worldwide
ABB Tmax moulded case circuit breakers are widely trusted by panel builders, electrical engineers and industrial facilities for dependable circuit protection, high interrupting capacity and long-term performance in critical power distribution systems.
