Electrical Switches

Rotary Selector Switches are suitable for instruments like Ammeters, Voltmeters, Power Factor Meters etc. The design enables to indicate by means of a single meter, the current or the voltage. Ammeter Selector Switches are provided with make - before - break contacts to give security against risk of open circuit of the current transformer secondaries. Listed below are standard switches.

TNC Switch - TNC or CAM SwitchThey are used as Control switches in Control Panels and equipments such as Phase Changeover Panels, MV & HV - Vacuum Circuit Breakers, Gas Circuit Breakers, On Load Tap Changers, Motor control panels, instrumentation Panels, Machine tools & Electro-medical equipments. The switches are used as Mains switch, Selector Switch, Programme Switch or for tripping or closing of breakers either locally or from remote site. These switches offer advantage of having unlimited combinations of switching angels and indexing angels with stay put and spring return momentary contacts. Lost motion contacts can be cascaded, used for additional protection or for activating annunciator.

Content Addressable Memory (CAM) table is a system memory construct used by Ethernet switch logic which stores information such as MAC addresses available on physical ports with their associated VLAN Parameters. The CAM table, or content addressable memory table, is present in all switches for layer 2 switching.

A Remote/Local control selector switch can often be situated in proximity to the controlled plant [i.e. LOCAL to the equipment] and allow an operator to take control locally and avoid the need to interact or accept remote supervisory commands.