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ABB 1SDA054182R1 Tmax T4N 250 four-pole moulded case circuit breaker with thermomagnetic TMD release, 50-500 A protection setting, fixed version and front terminals for low-voltage power distribution.
The ABB 1SDA054182R1 is a robust Tmax T4N moulded case circuit breaker (MCCB) designed to provide reliable protection for low-voltage electrical distribution systems. As part of the trusted ABB SACE Tmax T series, this four-pole circuit breaker is engineered for industrial switchboards, commercial installations, OEM control panels and power distribution applications requiring dependable overload and short-circuit protection.
This MCCB features a thermomagnetic TMD release with a protection setting of 50–500 A, helping safeguard electrical circuits against sustained overloads and high fault currents. Its fixed four-pole design and front terminal connection make it suitable for panel builders and electrical engineers who require a compact, reliable and easy-to-integrate protection device.
Built for demanding environments, the ABB 1SDA054182R1 provides dependable performance within the Tmax T4N 250 frame size, combining strong breaking capacity, proven ABB circuit protection technology and practical installation flexibility for modern low-voltage power systems.
Moulded case circuit breakers such as the ABB Tmax T4N are essential components in modern electrical distribution systems. They help protect cables, equipment and downstream devices by disconnecting circuits during overload or short-circuit conditions.
The ABB 1SDA054182R1 is particularly suited to applications where reliable four-pole isolation and protection are required. Its thermomagnetic trip technology provides dependable circuit protection without the need for complex electronic configuration, making it a practical choice for many industrial and commercial installations.
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| Current | 50 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T4N | |
| Model | T4N 250 TMD 50-500 4P F F | |
| Product code | 1SDA054182R1 | |
| Product type | Moulded Case Circuit Breaker | |
| Frame size | T4N 250 | |
| Number of poles | 4 | |
| Release type | Thermomagnetic | |
| Trip unit | TMD | |
| Protection setting | 50–500 A | |
| Version | Fixed | |
| Terminal connection | Front terminals | |
| Rated operational voltage | Up to 690 V AC | |
| Mounting type | Panel / switchboard mounting | |
| Product family | ABB SACE Tmax T moulded case circuit breakers |
The ABB 1SDA054182R1 is used to protect low-voltage electrical circuits against overload and short-circuit faults in industrial and commercial distribution systems.
This model is a four-pole moulded case circuit breaker, making it suitable for applications requiring four-pole switching and protection.
It uses a thermomagnetic TMD release, providing protection against both overloads and short circuits.
The ABB 1SDA054182R1 has a 50–500 A thermomagnetic protection setting.
It is typically installed in switchboards, distribution panels, industrial control systems and OEM machinery panels.
ABB Tmax moulded case circuit breakers are widely specified by panel builders, electrical engineers and industrial maintenance teams for dependable circuit protection, strong performance and long-term reliability in low-voltage power distribution systems.
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