Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding ...

This application note presents different types of overvoltage protection devices for solid-state relays. The document also provides suggested recommendations on their selection and use with the Vishay ...

Thanks to ongoing innovations in technology, electrical engineers' approach to motor protection has changed over the years. The traditional strategy to large AC motor protection (e.g., over 500 hp), ...

The White-Rodgers SureSwitch™ relay, model number 49P11-843, replaces the function of a contactor and short-cycle timer with a reliable sealed relay. It increases the reliability of air conditioning ...

Littelfuse, Inc. announced its new EL731 AC/DC Sensitive Earth-Leakage Relay, which can detect ground currents, even in resistance-grounded electrical systems,all the way down to 0 Hz. Littelfuse, Inc ...

Power relays are specifically designed to handle either AC or DC. It’s important to know the fundamental differences between them before building them into a system. Introduction to AC and DC Power ...

This chapter covers representative general-purpose relays used in the control circuits of most industrial, commercial, and consumer products. Relay names and terminology are in accordance with ...

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.