Mars Blue Box Motor Run Capacitor, 30/5 MFD, Dual Section 440/370 Volt Round (12281)

About the Mars Blue Box Motor Run Capacitor, 30/5 MFD, Dual Section 440/370 Volt Round (12281)

Save big on the Mars Blue Box Motor Run Capacitor, 30/5 MFD, Dual Section 440/370 Volt Round (12281) here at PlumbersStock. Motor run capacitors alter the current, creating a rotating magnetic field in single-phase induction motors. This Blue Box series has a reputation for producing the most reliable motor run capacitors. The initials MFD stand for Microfarad (a millionth of a Farad), which is a measurement of the capacitor's capacity. Mars is a popular HVAC brand among both homeowners and contractors for good reason.