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ABB 1SDA054269R1 T4V 320 TMA is a 320 A three-pole fixed moulded case circuit breaker with front terminals and adjustable thermomagnetic protection for demanding industrial and commercial low-voltage power distribution.
£3,215.66
The ABB 1SDA054269R1 is a high-performance SACE Tmax T4V moulded case circuit breaker (MCCB) designed for reliable protection and switching in demanding industrial and commercial low-voltage electrical distribution systems. As part of the established ABB SACE Tmax T4 series, this three-pole circuit breaker combines a 320 A rated current with a TMA thermomagnetic trip unit for dependable overload and short-circuit protection.
The TMA release provides thermal overload protection together with adjustable instantaneous magnetic short-circuit protection. Its magnetic trip setting range of 1,600–3,200 A allows short-circuit protection to be coordinated with the requirements of the protected circuit, helping safeguard cables, switchgear and downstream electrical equipment against damaging fault currents.
With a 320 A rated current, three-pole construction, fixed installation and front terminals, the T4V 320 TMA 320-3200 is designed for straightforward integration into low-voltage switchboards and distribution panels. The V short-circuit performance level is intended for demanding installations requiring particularly high fault-current interruption capability.
Moulded case circuit breakers such as the ABB SACE Tmax T4V protect electrical distribution circuits against overloads and short circuits while also providing a practical means of switching and isolation. The TMA thermomagnetic release combines thermal protection for sustained overload conditions with adjustable magnetic protection for rapid interruption of severe short-circuit faults.
The 320 A rating makes the 1SDA054269R1 suitable for higher-current feeders and three-phase distribution circuits. Its adjustable 1,600–3,200 A instantaneous magnetic trip range provides flexibility when coordinating protection with cables, downstream equipment and other protective devices, while the V performance level is designed for installations where high prospective fault currents demand strong interruption performance.
| Series | SACE Tmax T4 |
|---|---|
| ABB order code | 1SDA054269R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame / configuration | T4V 320 |
| Short-circuit performance level | V |
| Rated current (In) | 320 A |
| Number of poles | 3P |
| Trip unit | TMA thermomagnetic |
| Instantaneous magnetic trip range (I3) | 1,600–3,200 A |
| Magnetic trip adjustment | 5–10 × In |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Standards | IEC |
The ABB 1SDA054269R1 is a three-pole moulded case circuit breaker designed to provide overload and short-circuit protection for higher-current industrial and commercial low-voltage electrical distribution circuits.
The circuit breaker has a rated current of 320 A and uses an ABB TMA thermomagnetic trip unit.
The TMA release provides an adjustable instantaneous magnetic trip range of 1,600–3,200 A, corresponding to 5–10 × In.
The breaker uses a TMA thermomagnetic release to provide thermal overload protection together with adjustable instantaneous magnetic protection against short-circuit faults.
This model is a fixed three-pole circuit breaker with front terminals, designed for installation in low-voltage electrical switchboards and power distribution panels.
ABB SACE Tmax moulded case circuit breakers provide dependable overload and short-circuit protection for low-voltage distribution systems, combining robust construction, flexible thermomagnetic protection and high short-circuit performance for demanding industrial and commercial installations.
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