General technical data

Interference immunity

meets EN 61800-3; 2. Environment

Interference emission

Limit value class C2 according to EN 61800‑3.

From size 4, a line filter is required for limit class C2.

The interference suppression level can be improved using appropriate measures.

Refer to chapter EMC-compliant installation according to EN 61800-3 for further information.

Ambient temperature ϑamb

-10 – 40 °C without derating (sizes 0S and 0L)

0 – 40 °C without derating (sizes 3 – 8)

40 – 55 °C with derating

For further information, refer to chapter "Project planning" > "Selection of an inverter" > Power reducing factors.

Type of cooling

Natural convection:

  • MCX91A-0010 – 0025-5E3..
  • MCX91A-0017 – 0025-2E3..
  • MCX91A-0017 – 0025-2E1..

Forced convection through built-in temperature-dependent fan (ON – at heat sink temperature 44 °C / OFF – at heat sink temperature 40 °C):

  • MCX91A-0032-5E3.. – MCX91A-0160-5E3..
  • MCX91A-0034-2E3.. – MCX91A-0140-2E3..
  • MCX91A-0034-2E1.. – MCX91A-0110-2E1..

Forced convection due to built-in temperature-dependent speed-controlled fan:

  • From size 3

Short-circuit current

The uninfluenced short-circuit current according to EN 61800‑5‑1 is 65 kA.

Degree of protection

Sizes 0S, 0L, 3, and 4: IP20 in accordance with EN 60529, only with power connectors plugged in for grid and motor

Sizes 5 – 8: IP10 in accordance with EN 60529 (IP20 optional) with the corresponding covers

Pollution class

2 in accordance with IEC 60664‑1

Overvoltage category

III in accordance with IEC 60664-1

Installation altitude above sea level:

No restrictions apply to altitudes ≤ 1000 m.

The following restrictions apply to altitudes > 1000 m:

  • From 1000 m to max. 3800 m: IN reduction by 1% per 100 m
  • From 2000 m to max. 3800 m: To maintain protective separation and the air gaps and creepage distances according to EN 61800‑5‑1, an overvoltage protection device must be connected upstream to reduce the overvoltages from category III to category II.