The RC circuit limits the peak voltage across the coil to 3 Uc at up to 400 Hz, which suppresses conducted EMI and protects nearby PLC inputs and sensors from voltage spikes.
Clip-on mounting to the front of the Easy TeSys Control base unit — no tools needed, no additional wiring other than the existing coil connections. The module measures 44 mm wide by 33 mm deep, fitting within the contactor's own footprint so it does not steal DIN-rail space. IP20 finger-safe protection means it is suitable for enclosed control panels where incidental contact is possible during commissioning or maintenance.
Designed and tested to IEC 60947-5-1, the standard for control circuit devices and switching elements in industrial control panels. Protective treatment conforms to IEC 60068 for harsh environmental conditions (TH classification), covering humidity and temperature cycling during storage and transport.