Overview
Versa Drives’ AC compressor controller is designed for 230 V single-phase input and three-phase compressor motors in the ~1.5 kW class. It is a compact, field-proven drive built specifically for residential and light-commercial HVAC systems such as air conditioners and heat pumps.
Using a linear V/F control strategy with integrated protections, blower/fan relays, and an RS-232 interface, this controller gives OEMs a complete solution to drive standard HVAC compressors with precise speed control and improved energy efficiency.
Key Features
230 V single-phase input, 3-phase compressor output
- Input: 168–264 V AC, 50 Hz
- Output: 3-phase 180 V AC, 35–65 Hz
Up to 1.8 kW compressor power
- Suitable for compressors in the ~1.5 kW class (check detailed specs for exact limits)
Integrated HVAC control features
- Four 230 V, 5 A relays to control blower and auxiliary fans
- Two-digit seven-segment LED display with tactile keypad for local setup
- Up to three thermistor inputs for temperature and protection functions
Robust protections
- Over-voltage, under-voltage, over-current, motor overload, over-temperature
Built-in EMI filter
- Helps OEMs meet EMC requirements with reduced external filtering
Industrial-grade design
- Operating temperature: 0–45 °C
- Humidity: up to 90% (non-condensing)
- Vertical mounting, compact footprint (see datasheet for dimensions)
Typical Applications
- Split AC outdoor units (scroll or reciprocating compressors)
- Packaged and ducted HVAC units
- Small heat pumps and air-to-water systems
- Custom AHU / chiller modules using single-phase 230 V supplies
How OEMs Use This Controller
- Direct replacement for conventional compressor starters with speed control
- Variable-speed operation for better comfort and efficiency
- Integration with system controller / thermostat via digital I/O and analog references
- Simplified wiring with integrated blower relays and thermistor interfaces
Technical Specifications – Summary
Use the detailed datasheet table on the page for exact electrical and mechanical values.
| Parameter | Value |
|---|---|
| Input supply | 168–264 V AC, 50 Hz (single-phase) |
| Output | 3-phase 180 V, 35–65 Hz |
| Rated compressor power | Up to 1.8 kW |
| Control method | Linear V/F |
| Protections | Over-voltage, under-voltage, motor overload, over-current, over-temperature |
| User interface | 2-digit 7-segment display + tactile keys |
| Thermistor inputs | 3 channels |
| Fan / blower relays | 4 × 230 V AC, 5 A |
| EMI filter | In-built |
| Operating position | Vertical |
| Ambient temperature | 0–45 °C |
| Max humidity | 90% (non-condensing) |
Why Versa Drives for AC Compressors?
- Domain expertise in motor-drive co-design – compressor, fan and pump drives from 20 W to 10 kW.
- Rugged design for Indian conditions – wide voltage tolerance, high humidity operation.
- Faster time-to-market for OEMs – ready platform, easily customised firmware and I/O.
Enquiry Note
If you are interested, please share a few lines about your product, motor rating and supply voltage. We will review your requirement, map it to the closest Versa motor–drive platform and get back to you with next steps.
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