Finish Thompson model M3 drum pump motors are compatible with the following Finish Thompson series drum pumps: TB & PF. Model M3 Open Drip Proof (ODP) motor has an input/output of 640/400 Watts, 50/60 Hz, 115 Volts, Single Phase, Variable Speed, 5.6 full load ampere rating (FLA), 10,000 RPM and a maximum viscosity of 200 (TB series) to 500 (PF series) cP. The double wall thermoplastic motor housing reduces noise and vibration. This motor is CSA certified.