- You Are Here >>
- Recommended Motor Start Capacitors for Single Phase Motors
Recommended Motor Start Capacitors for Single Phase Motors
Motor Start Capacitors are manufactured, by using etched and formed pure aluminium foils (%99,99), seperated from each other with a low dencity, dielectric paper, inpregneted with a special electrolyte. Capacitor elements are fixed to the bakelite case, by filling the space between them, with a bituminous compound (softening point 110C min.).
Poles brought out to single or double, fast-on terminals. On requested supplied with end cap, bipolar cable, discharge resistance and metal mounting bracked.
- Application
In a fractional horse power single phase motor, in order to create a high starting torque, it will be necessary to displace the phase of the auxiliary winding by 90 degrees from the main winding, to get a rotating field. This will be achieved by connecting a motor start capacitor in series with the starting winding. This capacitor and the starting winding will be disconnected automatically, as soon as the motor reaches about %75 of its synchronious speed.
With a suitable choosen motor start capacitor, a loaded single phase motor will reach its full speed in approx. 3 seconds.
A table for start capacitors suitable for different HP ratings of 220 Volt AC 50/60 Hz single phase motors is given below.
Motor Rating ( HP) |
Motor start Capacitor (MFD) |
1/6 HP |
20-25 MFD |
1/5 HP |
30-40 MFD |
1/4 HP |
40-60 MFD |
1/3 HP |
60-80 MFD |
1/2 HP |
80-100 MFD |
3/4 HP |
100-120 MFD |
1 HP |
120-150 MFD |
1.5 HP |
150-200 MFD |
2 HP |
200-250 MFD |
3 HP |
250-350 MFD |
- Motor Run Capacitor
- Motor Start Capacitor
- fan capacitor
- air conditioner capacitor
- Hard Start Kit
- lighting capacitor
- washing machine capacitor
- CBB60 Capacitors
- CBB65 Capacitors
- CD60 Capacitors
- CBB80 Capacitors
- CBB61 Capacitors
- power capacitor:






315200,Zhuangshi Industry Zone,Ningbo,China
(86)574 26266608,26266618
(86)574 26266618
zhanjixiang
Miss Jasmine (Salesperson)