18 Shunt trip device (SHT)
SHTA048-05SVRFS Shunt trip. AC 24-48V, R hand fitting 4P, for W75, 90, 105. Terminal block.
17 Under voltage trip device (UVT)
UVTSA450-10SWRFU05 Undervoltage trip.AC 100-120/200-240/380-450V, TD, 3pole, NF/DSN1000, 1250, 1600