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.

AC Motor Starter AC motor starters are used to turn-on and turn-off electric motors and motor-controlled equipment. They use solid-state or electromechanical technologies, and are designed for ...

When voltage sags occur inside or outside of a facility, properly placed power quality mitigation technology will save sensitive equipment from costly shutdowns. The cost of this mitigation equipment ...

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 ...

Hello!In this article, I will explain three devices that are essential to know when learning electrical control.The devices ...

AutomationDirect has added a wide assortment of quality WEG Electric contactors and motor control devices to their lineup of motor controls and safety equipment. The CWBS series IEC safety contactors ...

Due to the wide variety characteristics of the induction motor, it plays the premier role in the industrial sector. Some of those are self starting, rugged construction, high efficiency, good power ...

Littelfuse is expanding its solid-state switching portfolio with the SCD and SCP Series solid-state contactors for control in single- and three-phase heating and motor applications. Designed to ...

A 4-pole motor contactor is an electrical device designed to control the power flow to motors by opening and closing electrical circuits. It typically consists of a 40 amp, 240 V coil and is available ...

Controlgear is a collective term for electrical disconnect switches, fuses, and circuit breakers used to control, protect and isolate electrical equipment. The term is part of the IEC definition of ...

Last column, I wrote about various applications where fire alarm relays could be used to integrate a commercial fire alarm system with other electrical systems at a customer’s site to provide them ...