Delta MS300 VFD – 1-Phase Compact AC Drive (0.5–3 HP) | Built-in PLC, STO, and Sensorless Vector Control

The Delta MS300 VFD 1 phase models – VFD2A8MS21ANSAA, VFD4A8MS21ANSAA, VFD7A5MS21ANSAA, and VFD11AMS21ANSAA – are designed for high-performance control of 3-phase motors using a 1-phase 230V AC input. These drives offer advanced motor control technologies like sensorless vector control, SVC for PM motors, PID feedback, and dual-channel STO safety.

Thanks to their compact size, built-in PLC logic, and RS-485 Modbus RTU communication, Delta MS300 VFD  drives are ideal for precision speed regulation in small machines, conveyors, pumps, and HVAC applications. Moreover, their natural or forced cooling options make them suitable for panel builders and OEMs.

 Features – Delta MS300 VFD 1 Phase

• Input Voltage: 1-phase 200–240V AC (±10%)

• Output Voltage: 3-phase 0–240V AC

• Control Methods: V/F, Sensorless Vector Control, SVC for PM

• Built-in PLC: 2k steps logic capability

• PID Control: Included for precise automation

• Communication: RS-485 (Modbus RTU)

• Safety: Safe Torque Off (STO – dual channel)

• Keypad: 5-digit LED with operational status

• Mounting: Panel or DIN rail

• Cooling: Natural or fan, depending on the model

• Protections: Overvoltage, Overcurrent, Ground fault, Short-circuit, and Overload

🧰 Typical Applications

• Compact conveyors and mixers
• Blowers and HVAC control systems
• CNC and panel-integrated automation
• Packaging machines
• Lab and OEM equipment using Delta MS300 VFD 1 phase control

🔗 Compatibility

• Works with standard 3-phase induction & PM motors
• Fully integrable with Delta PLC, HMI, and sensor units
• Accessories: AC reactors, EMI filters, external braking resistors

📐 Physical Dimensions (All Models)