Macromatic Industrial Controls KnowledgeBase & Blog

Understanding Entity Parameters

Monday: July 15, 2019 : Intrinsically Safe Relays

When designing Intrinsically Safe Circuits, it is imperative to understand the entity parameters of the devices in your circuit. The entity parameters describe characteristics of the device, as well as what can safely be connected to it.


Understanding Time Delay Relay Functions

Wednesday: July 10, 2019 : Time Delay Relays

Issue: What is the difference between On Delay, Off Delay, Single Shot, Interval On and all these other time delay functions? Solution/Resolution: Understanding the differences between all the functions available in time delay relays can sometimes be a daunting task. When designing circuits using time delay relays, questions such as what initiates a time delay relay,


Does my Phase Monitor Relay require a Short Circuit Current Rating?

Tuesday: July 2, 2019 : Three-Phase Monitor Relays

Calculating the Short Circuit Current Rating for control panels requires establishing the SCCR for each of the individual, relevant power circuit components. What about the Phase Monitor Relay used to measure the circuit voltage? 


Why UL 913 8th Edition Certification Matters?

Thursday: June 20, 2019 : Intrinsically Safe Relays

Intrinsically Safe devices are not yet required to meet UL 913 8th Edition. So why does certification to the more stringent 8th edition matter?


Macromatic Controller Recognized for 25 Years with WICPA

Monday: June 17, 2019 : Blog

Dave Nadolski, Controller with Macromatic Industrial Controls, was recognized in May for his 25-Year Anniversary with the Wisconsin Institute of CPA’s.


What type of power systems can Macromatic relays protect?

Tuesday: June 11, 2019 : Three-Phase Monitor Relays

Macromatic devices work on many systems. Here are the guidelines and recommended connections for Open Delta, Corner Grounded and High Leg (Red Leg, Wild Leg) Delta systems. Contact Macromatic for technical information on other systems.


An Overview of Hazardous Locations

Thursday: May 23, 2019 : Intrinsically Safe Relays

When electrical equipment is used in, around, or near an atmosphere that has flammable gases or vapors, flammable liquids, combustible dusts, ignitable fibers or flyings, there is a possibility or risk that a fire or explosion might occur. 


What is the difference between “UL Listed” & “UL Component Recognized”?

Monday: May 20, 2019 : Knowledgebase General

We are often asked several questions regarding our plug-in products & UL certifications: "What is the difference between UL Component Recognized & UL Listed”? and Why are some products only UL Component Recognized instead of UL Listed”? &


Macromatic Names New Central Region Sales Manager

Tuesday: May 14, 2019 : Blog

Darin Gilmore has joined the Macromatic Sales team as the new Regional Sales Manager for the U.S. Central Region. Darin will report to Tim Burns, Vice President – Sales and Marketing.


Macromatic Announces Transition to New Owners

Thursday: May 2, 2019 : Blog

Macromatic has announced the sale of the privately-owned company to a management group headed by new President Steve Sundlov. The transition is effective May 1, 2019, according to past owner and President John Perdue. Perdue is retiring after 22 years of leading the company and 40 years in the industry.


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