Industrial Automation and Control News

Contactors vs Relays: What’s the Difference?

contactor vs relay

There is a lot of confusion around the industry about the difference between contactor vs relay and many times the terms are used nearly interchangeably. The defining differences are not always clear, so we thought we’d try and help sort out the answer.

How to Size a Disconnect Switch

A disconnect switch is simply an On/Off switch used to cut power to a piece of equipment or electrical enclosure. In some cases, it can be referred to as a “main switch”. According to IEC/EN60204-1:  applicable for safety of electrical equipment or machinery a manually operated disconnect switch must be provided for every main power… Read more »

Rotary Gear Limit Switch Model Updates

While this is not a new change, there are still quite a lot of older model rotary gear limit switches made by TER and sold by Springer Controls out in the market, so we thought it would be useful to make a post to help customers understand the changes and help transition to the new… Read more »

Wiring a Single Phase Motor Through a 3 Phase Contactor

Single phase power is typically reserved for lower power requirements; however, in some cases powering a small motor with single phase input power is practical. Single phase motor starters are not commonly available since this is a rare case, and with a little bit of know-how, a 3-phase motor starter can easily be wired for… Read more »

How to Select and Size an IEC Contactor

how to size a contactor

In previous blog posts, we talked about the differences between IEC vs. NEMA and discussed the basics of a motor starter. Today we’re going to talk about selecting a contactor for your application requirements. There are 5 primary things to consider when determining how to size a contactor for your application: Full Load Amperage at… Read more »