JKW5C, RPCF and JKW58 controllers provide automatic reactive power compensation for low-voltage capacitor panels. The comparison below separates the electrical supply, switching thresholds, delay ranges and mounting dimensions of each variant. Select the controller together with the required current-transformer input and number of capacitor steps.
| Parameter | JKW5C | RPCF | JKW58 |
|---|---|---|---|
| Operating voltage | 380V±20% | 220V±10% | 380V±20% |
| Frequency | 50Hz | ||
| Sampled current | AC input, ≤5A | ||
| Output contact capacity | 220VAC, 5A; 380VAC, 3A | ||
| Dielectric strength | 3000VAC | 4000VAC | 3000VAC |
| Duty | Continuous | ||
| Switch-in threshold | Reactive current >1.1Ic and power factor below the preset value | Power factor <0.93 | Reactive current >1.1Ic and power factor below the preset value |
| Switch-out threshold | Power factor above the preset value | Power factor >0.98 | Power factor above the preset value |
| Adjustable switching delay | 5-100s | 2-200s | 5-100s |
| Adjustable overvoltage protection | 400-450V | 380-430V | 400-450V |
| Sampling phase-sequence recognition | Automatic | Not specified | Automatic |
| Self-checking | Provided | ||
| Controlled channels | 4, 6, 8, 10 or 12 | ||
| Consumption | 10W | ||
| Weight | 1.35kg | 1.00kg | 1.35kg |
| Panel cutout | 113×113mm | 113×113mm or 138×138mm | 138×138mm |
Ic identifies the capacitor-step current used by the reactive-current switching threshold. Specify the required controller variant and channel count, and check the selected controller's voltage and connection arrangement before wiring the capacitor panel.
