KnowledgeBase & Blog | Macromatic Industrial Controls

Circuit Design for Intrinsic Safety

Wednesday: August 14, 2019 : Intrinsically Safe Barrier Relays

When installing electrical equipment in or near hazardous locations, specific circuit design principles must be followed in order to prevent an explosion.

Typical Applications for Alternating Relays

Tuesday: August 6, 2019 : Alternating Relays

Issue: How do I make connections to my Alternating Relay? Solution/Resolution: Macromatic offers several versions of Duplex Alternating Relays. The following examples are typically the way connections are made to the relays. The loads could be pumps, compressors, or air conditioning/refrigeration units.

TD-881 Series DIP Switch Programming

Tuesday: July 30, 2019 : Time Delay Relays

Macromatic offers one of the widest varieties of time delay relays (sometimes referred to timing relays or timers) on the market today The online Interactive Programming Guide makes it simple to set up to 16 field-selectable time delay functions.

Macromatic Earns Fastest Growing Firms Award

Monday: July 22, 2019 : Blog

Macromatic was recognized as a Fastest Growing Firm by the Milwaukee Business Journal. Firms with the highest pecentage of growth from 2016 to 2018 were selected as winners. Macromatic has grown by 32.91% in that period.

Understanding Entity Parameters

Monday: July 15, 2019 : Intrinsically Safe Barrier 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.

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 Barrier 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.

An Overview of Hazardous Locations

Thursday: May 23, 2019 : Intrinsically Safe Barrier 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 : General Articles

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”? &