Metal case motor run capacitors

Capacitor equipped with “overpressure” safety device S2 protection class, in aluminium case.


For the useing in running single-phase asynchronous motors and in all general a.c. applications at 50/60Hz, ITALFARAD proposes a range of self-healing capacitors, manufactured using a aluminium case filled with resin. This range gives very good electrical reliability together with high mechanical resistance to shock and vibration.

All ITALFARAD motor running capacitors have VDE approval mark in compliance with the European Standards EN60252-1.

We show below the life rating of the operating classes :

Class D = 1.000 hours
Class C = 3.000 hours
Class B = 10.000 hours
Class A = 30.000 hours

40 means -40°C, minimum operating temperature
085 means +85°C, maximum operating temperature
21 = duration (days) of the damp-heat test

General data of the metal case motor running capacitors

Dielectric material Self-healing metallized polypropilen
Filling material Non toxic
Case material Aluminum
Cover material Flame retardant plastic
Fixing Metal stud, M8 or M12
Terminals Fast-on 6,3 x 0,8 mm, simple or double
Micro Fast-on 2,8 x 0,8 mm
Reference Standards CEI EN 60252-1, UL 810*
Climatic category 40/085/21
Rated voltage see values for each type
Tolerance on the capacitance value ±5%, -2+8%
Rated frequency 50÷60 Hz
Maximum operating voltage 1,1 Un at 50 Hz
Voltage test between terminals 2 Un per 2 sec. 50 Hz
Voltage test between terminals and case 2000 Vac per 2 sec.
dV/dt 25 V/μS
Loss factor ≤ 15 x 10-4 (Un e 50 Hz)
Class of protection S2

* UL mark available only upon request.

Find the right capacitor for your application :

MFR-1MT series See the technical data of the MFR-1MT series
MFR-2 series See the technical data of the MFR-2 series
MFR-4 series See the technical data of the MFR-4 series