Technical Parameters
Parameter Specification / Value
Drive Series & Model ABB ACS350 Compact Drive
Product Code ACS350-03E-01A9-4
Rated Output Power 0.37 kW (0.5 HP)
Rated Output Current 1.9 A (Decoded from "01A9": 01 = 1.x A, A=10, 9=0.9, so 1.9 A)
Input Supply Voltage 3-phase, 380 - 480 V AC (±10%)
(*The "-03E" denotes this voltage range and frame size*)
Input Supply Frequency 47 - 63 Hz
Output Frequency Range 0.1 - 500 Hz
Control Method Scalar Control (Volts/Hertz - V/Hz).
Enclosure Class IP20 / UL Type 1 (Chassis Type). Must be installed in a protective enclosure.
Built-in EMC Filter Typically Not Standard at this micro size. An external filter is recommended/required for EMC compliance.
Fieldbus Interface Integrated Modbus RTU via RS-485.
Digital/Analog I/O 2 Digital Inputs (DI)
1 Digital Output (DO) - Transistor
1 Analog Input (AI) (0-10 V)
1 Analog Output (AO) (0-20 mA)
Overload Capacity 150% of rated current for 60 seconds.
Braking Chopper Not built-in. Does not support dynamic braking with a resistor.
Safety Function Safe Torque Off (STO) via an optional connection kit.
Protection Features Motor thermal overload, overcurrent, short circuit, ground fault, overvoltage, undervoltage.
Operating Temperature -10°C to +40°C (without derating).
Storage Temperature -40°C to +70°C
Mounting DIN-rail mounting (35 mm)
Dimensions (WxHxD) Very compact, approximately 45 x 145 x 140 mm (verify with datasheet).
Approvals & Standards CE, cULus, RoHS, IEC 61800-5-1.
The ABB ACS350-03E-01A9-4 is a Compact Micro AC Drive (Variable Frequency Drive, VFD) from ABB's ACS350 series, rated for 0.37 kW (0.5 HP). It is designed as an ultra-compact, cost-effective, and simple solution for controlling the speed of small three-phase induction motors in basic machinery and automation applications.