Selec APFC146 Automatic Power Factor Controller – 12 Stage, LCD Display
Selec APFC146 Power Factor Controller, 12 Stages
Advanced 1-CT sensing power factor controller with 12 relay stages, zero programming, LCD display, intelligent switching, and wide voltage input 90–550V AC.
The Selec APFC146 is a high-precision 12-stage power factor controller featuring 1-CT sensing, intelligent capacitor bank switching, zero-programming capability, and a wide auxiliary supply (90–550V AC). It is designed for automatic power factor correction in industrial and commercial APFC panels.
KEY FEATURES
1-CT sensing operation for simplified wiring
Zero-programming algorithm for quick commissioning
12 relay stages for capacitor bank switching
LCD with backlight and 4-digit display
Settable PF target, step time & discharge time
Wide auxiliary supply: 90–550V AC
Over-temperature protection
Alarm indications for current <50mA & temperature
Supports automatic or manual modes
CE certified (datasheet page 1)
TECHNICAL SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Supply Voltage | 90–550V AC, 50/60 Hz |
| CT Input Range | Nominal 5A (Min 50mA, Max 6A) |
| Burden | 20 mΩ |
| Display | 4-digit LCD with backlight |
| PF Accuracy | ±0.01 |
| Temperature Accuracy | ±3% of full scale |
| Target PF Setting | 0.8 lag to 0.8 lead |
| Step Time | 1–999 sec |
| Discharge Time | 1–999 sec |
| Number of Stages | 1–12 |
| Relay Output | 5A at 250V AC |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | –20°C to 60°C |
| Mounting | Panel mounting |
| Dimensions | 144×144×50 mm |
| Weight | 400 g |
| Certifications | CE, RoHS |
APPLICATIONS
Automatic capacitor bank switching
Industrial APFC panels
LT distribution boards
Commercial buildings & factories
Electrical energy optimization
Harmonic-sensitive installations
WHAT’S IN THE BOX
Selec APFC146 Controller
Panel mounting clamps
User manual
FAQ
Q1. Does the APFC146 support 1-CT sensing?
Yes, it is designed for 1-CT sensing applications.
Q2. How many relay stages does it support?
It supports 12 switching stages for capacitor banks.
Q3. What is the auxiliary supply voltage?
90–550V AC wide-range supply.
Q4. Can I adjust PF target and step times?
Yes—target PF (0.8 lag to 0.8 lead), step time, and discharge time are programmable.
Q5. Does it show alarms?
Yes—current below 50 mA and over-temperature alarms.