1. Home
  2. Hobby Electronics Basics
  3. Hooking up panel amp meter

Hooking up panel amp meter

I've been asked to order parts for a panel amp meter (with an upper-limit alarm relay). They've specified to use a current transformer rather than than a 4-20mA transducer type sensor. Max amps will be ~35 AC Amps.

Newport has a 500:5 donut

formatting link
for $27. This gives me a .35A signal for 35A input (?). A 1A panel meter with alarm is $185
formatting link
This can be scaled x100 so a .35A signal reads "35".

Is anything else needed? Note: A qualified electrician will be hooking this up.

Reply to
johnT
Loading thread data ...

Seems OK. What does the electrician say?

Reply to
Homer J Simpson

No way for me to ask...We're adding this as an extra to our normal control panel. We'll sell it to the main office who will send it to a branch who will have their electician/contractor install it. I just have to make sure I order all the right pieces.

Reply to
johnT

OK. As a GENERAL rule, I like to be close to the max on devices, i.e. a 50 amp CT and / or meter for 35 amps but your choices may be optimum for your application.

Reply to
Homer J Simpson

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.