Model Code Explanation

• 31C: MOVITRAC 31C series, compact regenerative drive

• 030: Rated power 4.0 kW, rated output current 7.3 A

• 503: 3-phase 380–500 V AC input, no built-in EMC filter

• 4: 4-quadrant operation with regenerative braking and grid feedback

• 00: Standard firmware, no STO, no fieldbus module

Technical Specifications

Input

• Rated voltage: 3-phase AC 380–500 V (±10%)

• Frequency: 50/60 Hz (±10%)

• Rated input current: 6.7 A

Output

• Rated power: 4.0 kW

• Rated output current: 7.3 A

• Apparent power: 5.1 kVA

• Frequency range: 0–400 Hz

• Overload: 125% continuous; 150% for 60 s

Control & Interfaces

• Control modes: V/F open-loop, sensorless vector (VFC)

• Digital I/O: 6 in, 2 out, 1 relay

• Analog I/O: 2 in, 2 out

• Safety: No STO

• Protection: Overcurrent, overvoltage, undervoltage, overtemperature, earth fault, short circuit

Mechanical & Environmental

• Protection class: IP20

• Operating temperature: 0 °C to +45 °C (derate >40 °C)

• Storage temperature: -25 °C to +70 °C

• Dimensions (W×H×D): approx. 170 × 184 × 281 mm

• Weight: approx. 3.98 kg

Key Features

1. 4-quadrant energy regeneration

   Recycles braking energy to the grid; no external brake resistor needed.

2. Compact and cost-effective

   IP20 housing, small footprint, basic I/O for standard applications.

3. Reliable motor control

   V/F and sensorless vector control for steady speed/torque.

4. Comprehensive protection

   Multiple fault protections ensure long-term stability.

Typical Applications

Related Models

• 31C030-503-4-05: 4.0 kW, 4-quadrant, with STO, no fieldbus

• 31C030-503-4-20: 4.0 kW, 4-quadrant, PROFIBUS-DP, no STO

• 31C030-503-4-25: 4.0 kW, 4-quadrant, PROFIBUS-DP + STO