Motor Run Capacitors

A Run capacitor uses the charge stored in the dielectric in order to boost the electrical current providing power to an electric motor. This type of capacitor is created to maintain a constant charge during the use of the motor.the run capacitor and the auxiliary winding are connected for the entire time the motor is running,this will preserve the "rotating magnetic field" and improve torque at operating speed. All available in the following sizes:


A Run Capacitor with a spade connection
450 VOLT Spade Connections

Cap Range

Part no.

len x dia (mm)

0.5uf R000 55 x 28
1.0uf R001 55 x 28
1.5uf R002 55 x 28
2.0uf R003 55 x 28
2.5uf R004 55 x 28
3.0uf R005 55 x 28
3.5uf R006 55 x 28
4.0uf R007 55 x 28
5.0uf R008 55 x 28
6.0uf R009 55 x 32
8.0uf R010 55 x 32
10.0uf R012 58 x 36
12.0uf R013 70 x 36
14.0uf R014 70 x 36
15.0uf R015 70 x 36
16.0uf R016 67 x 40
18.0uf R017 67 x 40
20.0uf R018 67 x 40
25.0uf R019 92 x 40
30.0uf R020 92 x 40
31.5uf R031 117 x 45
35.0uf R021 92 x 40
40.0uf R022 92 x 40
45.0uf R045 117 x 45
50.0uf R023 117 x 45
60.0uf R024 117 x 50
65.0uf R065 117 x 50
76.0uf R025 117 x 50
80.0uf R026 121 x 55

*There is no stud mounting on an R025

A Motor Run Capacitor with a lead connection
450 VOLT Lead Connections

Cap Range

Part no.

len x dia (mm)

0.5uf RL00 55 x 28
1.0uf RL01 55 x 28
1.5uf RL02 55 x 28
2.0uf RL03 55 x 28
2.5uf RL04 55 x 28
3.0uf RL05 55 x 28
3.5uf RL06 55 x 28
4.0uf RL07 55 x 28
5.0uf RL08 55 x 28
6.0uf RL09 55 x 32
8.0uf RL10 55 x 32
10.0uf RL12 58 x 36
12.0uf RL13 70 x 36
14.0uf RL14 70 x 36
15.0uf RL15 70 x 36
16.0uf RL16 67 x 40
18.0uf RL17 67 x 40
20.0uf RL18 67 x 40
25.0uf RL19 92 x 40
30.0uf RL20 92 x 40
31.5uf RL31 117 x 45
35.0uf RL21 92 x 45
40.0uf RL22 92 x 45
45.0uf RL45 117 x 45
50.0uf RL23 117 x 45
55.0uf RL55 117 x 45
60.0uf RL24 117 x 50
65.0uf RL65 117 x 50
70.0uf RL70 117 x 50
76.0uf RL25 117 x 50
80.0uf RL26 121 x 55
100.0uf RL27 120 x 60