4" Oil Cooling Submersible Motor, NEMA Standard, Class B, IP68 ... 380-440V, 50/60Hz Available. 4" Oil Cooling Submersible Motor, Submersible Motor, Oil Cooling Submersible Motor, pump motor BASIC CHARACTERS ... Nickel plated cast-iron upper and bracket. Pressure automatic adjusting device made of oil and waterproof reformed butyl rubber. Flange ... ); 2.5m(5.5kW); 3m(7.5kW) 4" Oil Filled Submersible Motor