Motor Start Capacitors

The motor start capacitor, or start capacitor, is active solely during motor startup, connected with an auxiliary winding. It automatically disconnects, often via a centrifugal switch, when the motor reaches a set speed.

Newcap manufactures AC motor start capacitors utilizing etched and formed aluminum foils of superior purity. These foils separate the anode and cathode, with tissue paper employed to retain sufficient electrolyte and absorbent material. To shield the capacitor element from atmospheric moisture and dust, it is enclosed within an aluminum can. For enhanced safety, these capacitors undergo complete insulation with PVC shrinkable sleeves and are further sealed within an outer tubular aluminum can. Flexible terminations of the desired length are provided as per specific requirements.

What we Offer

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FOIL SERIES Features

Single-can and double-can construction options available.
Streamlined design for ease of handling.
Suitable for heavy-duty applications.

NEWCAP FOIL SERIES Specifications

Construction	Extruded Aluminium Can
Capacitance Available	40/60 μF to 250/300 μF
Capacitance Tolerance	±10%
Working Voltage	230 Volts AC
Max Voltage	300 Volts AC
Frequency	50 to 60 Hz
Insulation Resistance	More than 2500 Mega Ohms
More than 2500 Mega Ohms	Paper based
Impregnation	Non-PCB, Electrolytic Capacitor
Ambient temperature	min. -25 °C max 85 °C
Terminals	Cable & Stud type terminals

NEWCAP FOIL SERIES General Availability

Capacitance μF	Size-Diameter x Height (mm)
40 x 60	40 x 100
60 x 80	40 x 100
80 x 100	40 x 106
100 x 120	40 x 106
120 x 150	40 x 106
120 x 150	45 x 130
150 x 200	45 x 130
200 x 250	45 x 130