When a mechanical contact, such as pushbutton, switch, user-interface button, limit switch, relay, or contactor contact, is opened or closed, the contact seldom demonstrates a clean transition from ...

Relays and contactors use a variety of technologies to switch signals and power connections. Many devices called relays use similar techniques and topologies, but the terminology can be confusing.

Contactors are nothing more than a coil and a set of contacts. The coil of the contactor can be 24, 115, or 230 V, and even higher depending on the application. The contactor arrangement can be single ...

Johnstech at Semicon West (www.semi.org) demonstrated new gold-plated contacts for the Pad ROL200 contactor. The company developed the new contacts to help customers comply with the RoHS initiative.

• Electrical power sources supply two types of power to inductive loads: real power in kW and reactive power in VAR. • Power-factor correction circuits can be either an individual style or of the bank ...