Model Code Explanation

• 31C: MOVITRAC 31C series, compact 4‑quadrant drive

• 150: Rated power 18.5 kW, rated output current 33 A

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

• 4: 4‑quadrant operation with brake chopper / energy regeneration

• 07: Wide temperature firmware/hardware (‑20 °C to +45 °C), standard logic, no STO, no fieldbus

Technical Specifications

Input

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

• Frequency: 50 / 60 Hz (±10%)

• Rated input current: Approx. 28 A @ 400 V

Output

• Rated power: 18.5 kW (25 HP)

• Rated output current: 33 A @ 400 V

• Apparent power: 24 kVA

• Frequency range: 0–400 Hz

• Overload capacity: 150% / 60 s; 180% / 2 s

Control & Interfaces

• Control modes: V/F open‑loop, sensorless vector (SVC)

• Digital I/O: 7DI / 2DO / 1 relay

• Analog I/O: 2AI / 2AO

• Safety: No STO

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

Mechanical & Environmental

• Protection class: IP20

• Operating temperature: ‑20 °C to +45 °C (vs 0 °C for ‑00)

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

• Dimensions (W×H×D): 240 × 300 × 325 mm

• Weight: 11.5 kg

Key Features

1. 4‑quadrant regeneration

   Recycles braking energy to grid, eliminates external brake resistors.

2. Cold‑climate capable (‑07)

   Operates reliably at ‑20 °C, ideal for warehouses, outdoor conveyors, cold storage.

3. High‑performance control

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

4. Compact & robust

   IP20 design for standard control cabinets.

Typical Applications

Related Models

• 31C150-503-4-00: 18.5 kW, standard temp (0 °C), no STO/fieldbus

• 31C150-503-4-05: 18.5 kW, standard temp, with STO

• 31C150-503-4-20: 18.5 kW, standard temp, PROFIBUS‑DP

• 31C150-503-4-25: 18.5 kW, standard temp, PROFIBUS‑DP + STO