Setra Blog

For an updated glossary, please visit our FAQ page.

Alternating Current - current that reverses its direction of flow periodically (Hz).

Ampere - a unit of measure for the rate of current flow

Apparent Power - applied voltage multiplied by current in an AC circuit. This value would not take the power factor into account. Unit is volt amperes. (VA).

Popular Types of Current Sensors

Current Shunts

Current Shunts are low value resistors that are inserted into a circuit. The shunt provides terminals to connects the sensed current and voltage monitoring terminals. The commercially available shunts have sensed current ranges from less than 1A to several hundred amps.

Technology Trends at the 2015 AHR Expo

A week ago the 2015 AHR Expo kicked off at McCormick Place in Chicago. Not only were there 8% more exhibitors than last year's expo, but an extensive number of new HVACR products and technologies were featured at various booths. Setra was among these companies using the AHR Expo as a platform to launch the latest products in HVACR.

Here's What You Missed at the 2015 AHR Expo

Thank you to all who visited us at Booth 3823 in the Building Automation section of the AHR Expo. We enjoyed seeing both new and familar faces! The world's largest HVACR event was anything but boring. With 8% more exhibitors than last year and approximately 62,000 attendees, AHR was a huge success. 

Calculate Your Meter Installation ROI Right Here

It's finally here! The 2015 AHR Expo kicked off today, with a record breaking number of attendees and exhibitors. With hundreds of new products launching at the expo, there isn't a lack of HVAC innovation. Setra, this year located at Booth 3823, is featuring 5 new products ranging from room isolation monitoring power metering.

10 Products Fight For the 2015 Product of the Year Award

On Tuesday January 27th at 1 pm, the second day of the 2015 AHR Expo, the 2015 Product of the Year winner will be announced. This award will go to the most innovative product in the HVACR industry. Who's nominated for this hefty awarded? The 2015 AHR Expo Innovation Award winners, who each come from 1 of the 10 different categories of competition, are all up for the nomination. 

The Best of the Best: 2015 AHR Expo Resources

Where: McCormick Place, 2301 S Lake Shore Dr. Chicago, IL 60616

When: Monday, Jan. 26 10am-6pm; Tuesday, Jan 26 10am-6pm; Wednesday, Jan 28th 10am-4pm

Hope you're just as excited about the 2015 AHR Expo as we are! Back in March of 2014, AHR was predicted to be right on record-setting pace. Guess what, they set multiple records. The three day event, sponsored by ASHRAE and AHRI, will have over 40,000 attendees will visit with over 2,000 featured exhibitor. 

The 2015 International Consumer Electronics Show

For four days, Las Vegas was home to some of the most innovative technology products ever seen. This year's International CES kicked off on January 6th, and had not only the most technologically advanced products featured on the show floor, but also gave attendees the opportunity to listen to presentations given by some of the brightest in the industry.

Current Switch Technology Comparison

When you have two choices of current switches to install on a variety of motors, which do you choose: a fixed set-point or an adjustable set-point switch? In order to compare fixed and adjustable, safety, inventory, and installation time will be examined to find the best switch for any application.

It’s All About the Funding: Everything You Need To Know About Bill Clinton’s Keynote Speech at WEEC ‘14

Regardless of your feelings on politics, anyone who has ever listened to Bill Clinton speak knows he is a pretty convincing guy. In trying to unite both sides of a conflict, few orators are as gifted as Clinton at leveraging common sense to bridge a gap and bring people to the middle towards resolution of an issue; today was no different.