Motor Start and Run Capacitors

Motor CapacitorRun Capacitor

Motor Run Capacitors

Motor Run Capacitors for starting and running single phase motors.

Manufactured from self-healing metallised polypropylene film with case in either self-extinguishing plastic resin material or plastic sleeved aluminium.


Applications :
For A.C. Use. Starting and running of single phase motors.
Construction :
Self healing metallized polypropylene film. Low losses non inductive winding.
Protection :
Case and sealing cover in self extinguishing plastic resin material.
Terminals :
6.3 mm single 'Faston' type (up to 4mfd or double 'Faston' type 5mfd and above).
Mounts :
Via integral stud or clips. (Nut & Lockwasher supplied.)
Motor Start Capacitor

Motor Start Capacitors

Electrolytic capacitors are employed in single phase induction motors in order to increase their starting torque.

It is necessary that such starting takes place in a fraction of a second and that once starting has occurred the capacitor is disconnected from the circuit by means of either a starting switch or relay.

The capacitive element is made of aluminium foils treated and separated by a leaf of impregnated paper as the electrolyte.

Cases are moulded in a thermo setting material and terminals are 6.3mm Faston type.


Applications :
Start capacitors for single phase motors.
Construction :
Etched aluminium foil.
Protection :
Moulded thermosetting plastic case. Sealing by rubber disk and bakelized paper. Safety Valve.
Mounts :
6.3 mm double 'Faston' type.
Terminals :
Via clips.