Description

The HMB390 is a 3-pole, 100A MCB with a B-type tripping curve and 15kA breaking capacity, suitable for sub-main three-phase circuit protection in commercial and industrial distribution boards. The 100A rating per pole makes it appropriate for protecting sub-main feeders to downstream distribution boards.
Occupying 4.5 DIN rail modules and accepting flexible conductors up to 50mm² and rigid conductors up to 70mm², the HMB390 provides robust protection for large three-phase loads. Auxiliary contact and shunt trip accessories allow remote monitoring and automatic tripping.
IP20 rated, RoHS compliant, and operational from -25°C to +70°C, the HMB390 is part of Hager’s high-performance HMB MCB range for demanding commercial and industrial applications.