This datasheet introduces the features and characteristics of the ARCOTRONICS C.87/8 series capacitors. This series of capacitors is used in series with the starting winding of single-phase electric motors, allowing its starting and increasing the torque during work. The choice of capacitor depends on expected life length and the mechanical connection of the user.
These data sheets describe the Arcotronics C.87/8 and C.87/0 series start‑capacitors, intended for use in series with the start‑winding of single‑phase electric motors and low‑power compressors. Typical applications, product markings, and mechanical dimensions are listed.
The documents provide detailed technical parameters such as rated voltage, operating class, temperature range, capacitance tolerance, case material, dielectric type, and safety class, together with mechanical solutions like Fast‑on terminals and bipolar cable ring terminals.
| Rated Voltage (Vn, AC) | 500 V |
|---|---|
| Operating Class – C.87/8 | CLASS A – 30,000 h @ 420 V; CLASS B – 10,000 h @ 470 V |
| Operating Class – C.87/0 | CLASS B – 10,000 h @ 420 V; CLASS C – 3,000 h @ 470 V |
| Temperature Range | -25 °C to +85 °C |
| Capacitance Tolerance | ±5 % |
| Case Material | Aluminium |
| Dielectric | Polypropylene |
| Maximum Permissible Voltage | 1.10 × Rated Voltage |
| Maximum Permissible Current | 1.30 × Rated Current |
| Voltage Rise/Fall Time (C.87/8) | 20 V/µs |
| Voltage Rise/Fall Time (C.87/0) | 15 V/µs |
They are used in series with the start‑winding of single‑phase electric motors to aid starting and increase torque, mainly for low‑power motors and compressors.
The capacitors are rated for operation from –25 °C to +85 °C.
Both series have a safety class of P2.