NS20 Cam Switch
The NS20 is a very robust rotary cam switch with 12 mm diameter metal square shaft, aluminum nameplate, and cam-actuated contacts. The switch contacts, embedded in double contact modular blocks, with positive break by the cam discs, are available in three different versions. A special gold-plated version is suited for low voltage applications. A silver contact editions is designed for standard applications. And, finally, an edition using a permanent magnetic blowout is for direct current set-ups.
The NS20 rotary cam switches handle control tasks in switch panels, control stations and on-deck control stations. The can be equipped with metal notched discs from the Spohn & Burkhardt modular program, with customised positive-locking flanged potentiometers or with encoders that fit the customer's specifications. Call one of the Elma product engineers for advice & the possibilities for customized cam switches.
|Max. protection class outside / inside||IP54 / IP00|
|Number of notches||5|
|Operating temperature||-40°C / +60°C|
|Switching cycles||min. 10 milion|
|Max. Voltage / Current||230V / 16A|
|Max. number of contacts per direction of movement||24|
|Sensor types||Potentiometer, Encoder, Hall|
|Type of desired output signals||
4-20 mA or 0-20 mA
|BUS systems||ProfiNet, ProfiBus, SAE J1939, CAN(open), ...|