MKK400-D-12.5-01 is a three-phase capacitor from Fuji Electric with a rated capacitance of 3x83µF, a Delta connection, a rated voltage of 400VAC, a rated frequency of 50/60Hz, a rated current of 18A/22A, and a quality factor of 0.2W/kvar.
The EPCOS B25667B3247A375 power capacitor is designed for power factor correction in three‑phase, delta‑connected systems. It features self‑healing polypropylene film dielectric, natural or forced air cooling, and indoor mounting with a threaded M12 stud.
The datasheet provides detailed electrical ratings, mechanical dimensions, terminal specifications, safety features, and compliance with IEC 60831‑1/2 and UL 810‑5 standards. Installation and maintenance guidelines are referenced for optimal performance and safety.
| Rated capacitance | 3 x 83 µF |
|---|---|
| Tolerance | -5 % / +10 % |
| Rated voltage | 400 VAC |
| Rated frequency | 50 Hz / 60 Hz |
| Output (reactive power) | 12.5 kvar / 15 kvar |
| Rated current | 18 A / 22 A |
| Dielectric loss (tand) | 0.2 W/kvar |
| Maximum temperature | +95 °C |
| Dimensions (L × W) | 121 mm × 164 mm |
| Weight | ≈ 1.1 kg |
| Maximum stud torque | 10 Nm |
| Terminal torque | 1.2 Nm |
| Terminal cross‑section | 16 mm² (5 AWG) |
The rated voltage is 400 VAC.
The capacitor can operate up to +95 °C.
The maximum torque for the aluminum can stud is 10 Nm.
It complies with IEC 60831‑1/2 and UL 810‑5.