ABB 1SDA054014R1 SACE Tmax T4N 250 moulded case circuit breaker with PR221DS-I electronic trip unit, 250 A rated current and fixed four-pole front terminal configuration for low voltage power distribution.
The ABB 1SDA054014R1 is a dependable Tmax T4N moulded case circuit breaker (MCCB) designed for low voltage electrical distribution and circuit protection applications. As part of the trusted ABB SACE Tmax T series, this breaker provides reliable protection for industrial switchboards, commercial distribution panels and OEM electrical assemblies.
This model is fitted with a PR221DS-I electronic trip unit, providing solid-state protection for AC installations. Its fixed four-pole construction and front terminal arrangement make it suitable for panel builders and electrical engineers requiring compact, accurate and dependable circuit protection.
With a 250 A rated current, T4N 250 frame size and four-pole fixed configuration, the ABB 1SDA054014R1 is ideal for feeder protection, sub-distribution circuits, machinery panels and power systems where neutral switching or four-pole isolation is required.
The ABB Tmax T4N range is engineered to protect electrical circuits from damaging fault conditions while supporting reliable operation of low voltage power systems. Electronic trip technology provides accurate protection and dependable performance in demanding installations.
The ABB 1SDA054014R1 is particularly useful where a four-pole MCCB is required, providing switching capability across three phases and neutral. This makes it suitable for distribution systems, control panels and electrical assemblies requiring full four-pole isolation.
| Current | 250 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | SACE Tmax T |
| Model | T4N 250 PR221DS-I |
| SKU | 1SDA054014R1 |
| EAN | 8015644551001 |
| Alternative SKU | T4N 250 PR221DS-I In=250 4p F F |
| Product type | Moulded Case Circuit Breaker (MCCB) |
| Rated current (In) | 250 A |
| Rated uninterrupted current (Iu) | 250 A |
| Frame size | T4N 250 |
| Trip unit | PR221DS-I electronic release |
| Release type | Solid-state release in AC |
| Number of poles | 4 |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated ultimate breaking capacity (Icu) | 36 kA at 415 V AC |
| Rated service breaking capacity (Ics) | 36 kA at 415 V AC |
| Dimensions (W × H × D) | approx. 140 × 205 × 103.5 mm |
| Standard | IEC 60947 |
It is used to protect low voltage electrical circuits in industrial and commercial power distribution systems.
The ABB 1SDA054014R1 has a 250 A rated current.
This model is a four-pole fixed moulded case circuit breaker.
The breaker is fitted with an ABB PR221DS-I electronic trip unit for solid-state AC circuit protection.
It is commonly installed in switchboards, distribution panels, machinery panels and commercial electrical systems.
ABB SACE Tmax moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers worldwide for reliable low voltage protection, robust construction and dependable performance in demanding electrical distribution applications.
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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...