ABB 1SDA054020R1 Tmax T4N 250 moulded case circuit breaker with PR222DS/P-LSIG electronic trip unit, 250 A rated current, 4-pole fixed configuration and front terminals for low voltage power distribution.
The ABB 1SDA054020R1 is a robust and reliable Tmax T4N moulded case circuit breaker (MCCB) designed for dependable protection of low voltage power distribution systems. As part of the proven ABB SACE Tmax T series, this breaker is engineered for industrial, commercial and OEM applications where accurate circuit protection and long service life are essential.
This MCCB features a PR222DS/P-LSIG electronic trip unit, providing adjustable protection against overloads, short circuits, instantaneous faults and earth faults. Its electronic release supports improved selectivity and helps reduce unwanted tripping in complex distribution networks.
With a 250 A rated current, 4-pole fixed configuration and front terminal connections, the ABB 1SDA054020R1 is ideal for switchboards, panel boards, motor control centres and industrial power distribution systems requiring reliable, high-performance circuit protection.
Moulded case circuit breakers such as the ABB Tmax T4N provide essential protection for electrical installations by disconnecting circuits during abnormal conditions. The PR222DS/P-LSIG release allows the protection settings to be matched to the application, helping improve system coordination and operational reliability.
The ABB 1SDA054020R1 is suitable for applications where consistent protection performance, robust construction and integration into professional switchgear assemblies are required. Its four-pole configuration makes it particularly useful where neutral switching or full-pole isolation is needed.
| Current | 250 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | SACE Tmax T |
| Model | T4N 250 |
| Part number | 1SDA054020R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Rated current | 250 A |
| Rated voltage | 690 V AC |
| Number of poles | 4 |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Trip unit | PR222DS/P-LSIG electronic release |
| Breaking capacity | 36 kA at 415 V AC |
| EAN | 8015644551063 |
| Standards | IEC 60947 |
The ABB 1SDA054020R1 is used to protect low voltage electrical circuits against overloads, short circuits and earth faults in industrial and commercial power distribution systems.
This circuit breaker has a rated current of 250 A.
It is fitted with a PR222DS/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth fault protection functions.
The ABB 1SDA054020R1 is a 4-pole moulded case circuit breaker.
It is typically installed in switchboards, distribution panels, motor control centres and industrial control panels.
ABB Tmax moulded case circuit breakers are widely trusted by panel builders, electrical contractors and industrial engineers for dependable circuit protection, flexible configuration and proven performance in demanding low voltage installations.
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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...