Macromatic Industrial Controls KnowledgeBase & Blog

Hazardous Location Classifications

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 always a possibility or risk that a fire or explosion might occur. 

TE Connectivity Obsoleting Voltage Sensor Relays

TE Connectivity is obsoleting their line of plug-in voltage sensor relays (the old Potter & Brumfield brand products). 

Macromatic earns Fastest Growing Firms Award

Macromatic earns Fastest Growing Firms award from Milwaukee Business Journal. 

Maximum Voltage for Monitored Current

Issue: On any of your current sensing relays, is there a maximum voltage level for the current being monitored? 

Macromatic Reintroduces the COKP Series Plug-in Current Sensing Relay

Macomatic redesigned the COKP Series with new technology and it is now available. The COKP Series offers: adjustable pick-up current, adjustable drop-out current and adjustable time delay on relay energization.  

Macromatic’s CAP Series Current Sensing Relays are direct replacement for Crouzet

Macromatic’s new CAP Series Current Sensing Relays are a direct replacement for both the LIRT & DIRT Series from Crouzet.

Short Circuit Current Ratings (SCCR) of Three-Phase Monitor Relays

Does my Phase Monitor Relay require a Short Circuit Rating?

What happens when a time delay relay trigger is closed before voltage is applied?

Issue: I am using a time delay relay with a triggered function. My trigger switch will be closed before I apply voltage to the time delay relay. Will this work? Solution/Resolution: In a typical application with a triggered time delay relay, voltage is first applied to the timer, then the trigger is applied to begin the function. Some applications, however, require the trigger to be closed before voltage is applied. Most Macromatic time delay relays will recognize the trigger when applied prior to the application of voltage, however, some will not.

Using DPDT Cross-Wired Alternating Relays with HIGH-LOW Float Switches

Issue:

I have two float switches and two pumps in my application: a HIGH float switch to pump the water down and prevent an overflow of the tank, and a LOW float switch to turn the pump off and prevent the tank from being emptied & burning out the pump. 

Macromatic offers deadfront-mounted relays to protect submersible pumps

Macromatic offers relay solutions to protect pumps against over temperature and seal leakage in the water/wastewater industry.