VFD 300N S2 Series Single to Three Phase 220V Inverter (0.75-5.5 kW)

VFD 300 S2 Series – Single Phase 220V Input / Three Phase 220V Output

The VFD 300 S2 Series converts single-phase 220V input to three-phase 220V output, providing efficient motor control for applications requiring three-phase power from a single-phase supply.

Key Features

• Output Frequency: 0-600 Hz
• Overload Capacity: 150% rated current for 1 minute, 180% for 3 seconds
• Control Method: Optimized SVPWM control
• Control Mode: Sensorless vector control
• Frequency Resolution: Digital 0.01Hz; Analog max frequency ×0.025%
• Automatic torque boost: 0.1%-30.0%
• Built-in PID closed-loop control
• Multi-speed operation via built-in PLC
• RS485 communication
• 5 programmable digital inputs, 2 analog inputs
• 2 relay outputs
• Full protection suite included

Model Specifications

Also available on request: 300-4KWG-S2 (4 kW) and 300-5.5KWG-S2 (5.5 kW), per the S-series selection manual. These two ratings are not included in the current conformity attestation scope.

Electrical Specifications by Power Range

Applications: Conveyor systems, fans, pumps, machine tools, and industrial equipment requiring three-phase power from single-phase supply.

S2 Series Overview — Single Phase In, Three Phase 220V Out

The S2 series converts a single-phase 200–240V supply into a variable three-phase output from 0 to 240V. It is used where equipment is rated for three-phase 220V but the site has only a single-phase supply, allowing the existing motor to be run from the available power. Four models are within the conformity attestation scope (0.75 kW to 3.0 kW); 4 kW and 5.5 kW ratings are also available on request outside that scope. Output frequency is adjustable up to 600 Hz. Models within the attested range use the plastic enclosure and are available in four enclosure designs (S / Y / D / Z).

OEM & ODM available. Contact us for pricing and technical support.

Full model list: See all 118 certified 300N models by input/output voltage configuration →

Control Circuit Wiring Diagrams

The following diagrams show the control circuit terminal layout and wiring for each main board type used in the 300 Series. The board type varies by model and power rating.

Main Circuit Terminal Layout

Main Circuit Terminal Layout (R/L1, S/L2, T — PP, PB — U, V, W — G, E)
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Control Board Wiring Diagrams

A-Type Main Board Wiring Diagram
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Wiring Notes:

• Analog voltage signals require shielded cables; wiring distance should not exceed 20m.
• In severe interference environments, equip analog signal source side with filter capacitor or ferrite core.
• Terminal assignments may vary by model — refer to actual product labeling.