Cabinet Anti-Condensation Heating, Temperature-Monitored (Option L55); X 2 Thermistor Protection Relays For Alarms And Faults (Option L81); X 2 Thermistor Protection Relays For Alarms And Faults (Option L82); Figure 3-3 Cabinet Anti-Condensation Heating - Siemens GH180 Operating Instructions Manual

Description
3.1 Cabinet Details
3.1.6.17

Cabinet anti-condensation heating, temperature-monitored (option L55)

The anti-condensation heating is used at low ambient temperatures and high levels of humidity
to prevent condensation. The number of cabinet heaters installed depends on the number of
cabinet panels. A constant minimum temperature in the cabinet is ensured as the temperatures
of the anti-condensation heaters are automatically monitored using a thermostat. The anti-
condensation heating is controlled using a bimetallic switch that can be adjusted.
Figure 3-3
For further detail see Technical data and drawings.
3.1.6.18

2 x 2 thermistor protection relays for alarms and faults (option L81)

This option provides four thermistor protection relays for PTC thermistors (type A) for alarm
and trip. The power supply for the relay and the evaluation is provided in the drive.
For further details refer to the Interconnection diagram
3.1.6.19

3 x 2 thermistor protection relays for alarms and faults (option L82)

This option provides six thermistor protection relays for PTC thermistors (type A) for alarm and
trip. The power supply for the relay and the evaluation is provided in the drive.
For further details refer to the Interconnection diagram
46
Cabinet anti-condensation heating
SINAMICS PERFECT HARMONY GH180 6SR41 manufactured in NMA Nuernberg, Germany
Operating Instructions Rev.201706301306