The Circuit Breaker Frame, MasterPact NW40H1, is a robust and high-performance electrical protection device designed for industrial applications. With a range of current ratings including 4000A, and a short-circuit breaking capacity of 65kA at 440VAC 50/60Hz (Icu), this three-pole fixed frame ensures reliable and efficient power distribution. Notably, it operates without a control unit, making it a simplified and essential component for circuit protection in demanding environments.
10000 cycles without maintenance / 20000 cycles with maintenance
ip degree of protection
ip30 conforming to iec 60529
pollution degree
4 conforming to iec 60664-1
ambient air temperature for operation
-25โฆ70 ยฐc
ambient air temperature for storage
-40โฆ85 ยฐc
operating altitude
0...2000 m without derating / 2000 m...5000 m with derating
Product Details
The Circuit Breaker Frame, MasterPact NW40H1, is a robust and high-performance electrical protection device designed for industrial applications. With a range of current ratings including 4000A, and a short-circuit breaking capacity of 65kA at 440VAC 50/60Hz (Icu), this three-pole fixed frame ensures reliable and efficient power distribution. Notably, it operates without a control unit, making it a simplified and essential component for circuit protection in demanding environments.