Ammeter connection

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Ammeter connection

#181555 10/15/08 11:43 PM

Joined: Jan 2004

Posts: 171

NW Indiana

M

Merlin

OP

Member

I have a 0-75 Ammeter that I need to install. This meter is a direct connection meter that does not require a current transformer. I am not sure of the proper connection this way. I have always previously insatlled the ones with the CT. Can someone give me the right connection procedures. I want to make darn sure that i hook it up right. Thanks, Merlin

Tools for Electricians:

Re: Ammeter connection

Merlin #181557 10/16/08 01:39 AM

Joined: Jul 2004

Posts: 10,051

Likes: 39

Estero,Fl,usa

G

gfretwell

Member

Does it have lugs big enough for 4ga wire?

Greg Fretwell

Re: Ammeter connection

gfretwell #181558 10/16/08 06:35 AM

Joined: Jan 2004

Posts: 171

NW Indiana

M

Merlin

OP

Member

If i remember right, it has 1/4-20 studs.

Re: Ammeter connection

Merlin #181561 10/16/08 09:48 AM

Joined: Jul 2001

Posts: 599

WI, USA

J

JBD

Member

A direct connected meter is installed in series with the load.

Re: Ammeter connection

JBD #181562 10/16/08 11:22 AM

Joined: Jun 2006

Posts: 613

Victoria, BC, Canada

M

mikesh

Member

-----0-0------- Line 1 --------------load--]
shunt ^
--------------- Neutral or Line 2 ----load-]

Last edited by mikesh; 10/16/08 11:25 AM.

Re: Ammeter connection

mikesh #181566 10/16/08 11:49 AM

Joined: Jun 2007

Posts: 301

South Carolina

J

JValdes

Member

Directly in series with the load. Take one leg of the load and connect it to the meter. Take the other supply leg and connect it to the meter.

Motor - Meter - Line. Example only

Re: Ammeter connection

JValdes #181579 10/16/08 06:08 PM

Joined: Jan 2004

Posts: 171

NW Indiana

M

Merlin

OP

Member

Ok. I thought that was the case but didn't want to let the smoke out not being sure.

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Re: Ammeter connection

Merlin #181587 10/17/08 03:57 AM

Joined: Jul 2002

Posts: 8,450

Likes: 4

SI,New Zealand

Trumpy

Member

Originally Posted by Merlin

I have a 0-75 Ammeter that I need to install. This meter is a direct connection meter that does not require a current transformer. I am not sure of the proper connection this way. I have always previously insatlled the ones with the CT. Can someone give me the right connection procedures. I want to make darn sure that i hook it up right. Thanks, Merlin

Also, bear in mind that the supply will need to be de-energised while this meter is installed, trying to do a job like this with the power still connected is just silly.