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ABB Tmax T4N 250 four-pole moulded case circuit breaker with thermomagnetic trip unit, adjustable 32 to 320 A overload setting and fixed front terminals for industrial power distribution.
The ABB 1SDA054181R1 is a high-performance Tmax T4N moulded case circuit breaker (MCCB) engineered to provide dependable overload and short-circuit protection for industrial and commercial electrical distribution systems. As part of the trusted ABB Tmax T4 series, this fixed four-pole circuit breaker delivers reliable protection for low-voltage installations where safety, continuity of service and robust performance are essential.
Featuring a thermomagnetic (TMD) trip unit with an adjustable overload setting from 32 A to 320 A, the breaker provides accurate protection against sustained overloads and fault currents. Its fixed front terminal configuration simplifies installation while ensuring secure electrical connections in switchboards and distribution panels.
Designed for demanding industrial environments, the ABB 1SDA054181R1 combines proven circuit protection technology with compact dimensions, making it suitable for OEM machinery, industrial control panels, power distribution systems and infrastructure applications.
Moulded case circuit breakers provide essential protection by automatically disconnecting electrical circuits during overload or short-circuit conditions. This helps protect electrical equipment, minimise downtime and improve overall system safety.
The ABB Tmax T4 series is widely specified across industrial facilities, manufacturing plants and commercial installations thanks to its dependable performance, flexible protection characteristics and long operational life.
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| Current | 32 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | Tmax T4N | |
| Model | T4N 250 TMD 32-320 4P F F | |
| Product code | 1SDA054181R1 | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Number of poles | 4 | |
| Rated current | 32 A | |
| Overload adjustment range | 32 to 320 A | |
| Trip unit | Thermomagnetic (TMD) | |
| Terminal type | Fixed front terminals | |
| Rated operational voltage | Up to 690 V AC | |
| Mounting type | Panel mounting | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | Approx. 205 × 140 × 103.5 mm |
It is a moulded case circuit breaker designed to protect low-voltage electrical circuits against overloads and short circuits.
The ABB 1SDA054181R1 is a four-pole (4P) moulded case circuit breaker.
This model uses a thermomagnetic (TMD) release that provides both overload and instantaneous short-circuit protection.
The breaker is designed for electrical systems operating at up to 690 V AC.
It is commonly installed within industrial switchboards, distribution panels, OEM equipment and commercial electrical installations.
ABB Tmax moulded case circuit breakers are trusted worldwide for delivering dependable circuit protection, high performance and long-term reliability across industrial, commercial and infrastructure applications.
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