1. Model Decoding

• 1122: Size/power rating（4.0 kW）

• 403: 3×AC 380–500 V, no built‑in EMC filter

• 1: 1‑quadrant operation（no regenerative braking）

• 00: Standard firmware, no fieldbus, no STO

2. Key Specifications

• Input: 3×AC 380–500 V（−30% / +30%）, 50/60 Hz

• Output: 3×0–400 V, 2–127.5 Hz, 8 A, for 4.0 kW motor

• Power: 3.9 kVA, 4.0 kW

• Control: V/f open‑loop, sensorless vector（VFC）

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

• I/O: 6DI / 2DO / 1 relay, 2AI / 2AO

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

• Enclosure: IP20

• Ambient Temp: 0 °C to +45 °C

• Weight: Approx. 7.5 kg

3. Features

• ✅ 1‑quadrant, cost‑effective（no regen braking）

• ✅ 3‑phase 400 V industrial supply

• ✅ No integrated EMC filter（external filter for C2）

• ✅ Sensorless vector control（no encoder）

• ✅ Compact, rugged design for standard duties

4. Typical Applications

• Conveyors, fans, pumps（no overhauling loads）

• General machinery, packaging, material handling

• 4.0 kW 3‑phase motors on 400 V supply

5. Difference vs 1122-403-4-00

• 1122-403-1-00: 1‑quadrant, no regen, lower cost

• 1122-403-4-00: 4‑quadrant, regen braking, for active loads