The PF-4-180-400-30S-3P is a three phase (400V 50Hz) sucker 4 Pole (1380rpm) plate mounted 330mm axial fan. Mounted with 4 mountings on wall plate (490mm Mtg Ctrs) and supplied with terminal box. A fan assembly offering superb build quality by Remco. The PF-4-180-400-30S-3P is a three phase (400V 50Hz) sucker 4 Pole (1380rpm) plate mounted 330mm axial fan. Mounted with 4 mountings on wall plate (490mm Mtg Ctrs) and supplied with terminal box. A fan assembly offering superb build quality by Remco.