Protection against condensation and cabinet anti-condensation heating

SINAMICS DC MASTER are designed in compliance with climate class 3K3 (EN 60721-3-3) without condensation.

When supplied to tropical countries, we recommend that the drive cabinets are equipped with cabinet heating elements (option L55).
As option, the converter units are equipped with coated PCBs (option M08), which are insensitive to adverse ambient conditions. (The AOP30 and the optionally available Sensor and Terminal Modules also have coated PCBs/boards).

In order to guarantee safe and reliable operation, under all circumstances, it should be avoided that the units are commissioned with PC boards with moisture condensation.