ABB 1SDA054005R1 SACE Tmax T4N 250 moulded case circuit breaker with PR222DS/P-LSI electronic release, 250 A rated current and fixed three-pole front terminal configuration for industrial low voltage power distribution.
The ABB 1SDA054005R1 is a premium Tmax T4N moulded case circuit breaker (MCCB) engineered to provide dependable protection for low voltage electrical distribution systems. As part of the proven ABB SACE Tmax T series, this circuit breaker combines high breaking performance with an advanced electronic trip unit to safeguard industrial and commercial electrical installations.
Fitted with the PR222DS/P-LSI electronic trip unit, the breaker delivers adjustable long-time, short-time and instantaneous protection, allowing improved selectivity and coordination within electrical systems. Its fixed three-pole construction and front terminal configuration enable straightforward installation into switchboards and distribution panels.
With a 250 A rated current, T4N 250 frame size and 36 kA breaking capacity at 415 V AC, the ABB 1SDA054005R1 is ideally suited to feeder protection, motor control centres, industrial machinery and commercial power distribution where reliable circuit protection is essential.
The ABB Tmax T4N range is engineered to interrupt overloads and fault currents rapidly while maintaining system reliability. The advanced PR222DS/P-LSI electronic release enables precise protection settings, helping improve selectivity and minimise unnecessary downtime in demanding electrical installations.
Whether protecting switchboards, machinery, motor control centres or commercial electrical infrastructure, the ABB 1SDA054005R1 delivers the durability, performance and reliability expected from ABB low voltage protection equipment.
| Current | 250 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | SACE Tmax T |
| Model | T4N 250 PR222DS/P-LSI |
| SKU | 1SDA054005R1 |
| EAN | 8015644550912 |
| Product type | Moulded Case Circuit Breaker (MCCB) |
| Rated current (In) | 250 A |
| Rated uninterrupted current (Iu) | 250 A |
| Trip unit | PR222DS/P-LSI electronic release |
| Protection functions | Long-time, Short-time and Instantaneous (LSI) |
| Number of poles | 3 |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Rated operational voltage | 690 V AC / 750 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated service breaking capacity (Ics) | 36 kA at 415 V AC |
| Rated ultimate breaking capacity (Icu) | 36 kA at 415 V AC |
| Protection rating | IP20 (breaker) |
| Dimensions (W × H × D) | 105 × 205 × 103.5 mm |
| Weight | Approx. 3.5 kg |
| Standard | IEC 60947 |
It protects low voltage electrical systems against overloads and short circuits in industrial and commercial installations.
The ABB 1SDA054005R1 has a 250 A rated current.
The breaker is fitted with an ABB PR222DS/P-LSI electronic trip unit providing long-time, short-time and instantaneous protection.
This model is supplied as a fixed three-pole moulded case circuit breaker.
The breaker provides a rated breaking capacity of 36 kA at 415 V AC.
ABB SACE Tmax moulded case circuit breakers are trusted worldwide by panel builders, electrical contractors and industrial engineers for reliable low voltage protection, excellent build quality and dependable long-term performance.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...