RCI vs. GFCI

[Kevin VanHouten]

does the RCI give the same protection as the GFI?:roll:

 

[don_resqcapt19]

No, the RCI has a trip of 20 to 30mA and a GFCI has a trip of ~5mA.

 

[barclayd]

Since I was already logged on for something else, thought I'd just ask.
What's a RCI?
db

 

[cowboyjwc]

Since I was already logged on for something else, thought I'd just ask.
What's a RCI?
db

Good question.:grin:

 

[don_resqcapt19]

Residual current interrupter...works like a GFCI with a higher trip point. They are used in Europe.

 

[George Stolz]

On that note, has anybody heard of an RCI being used for heat tape applications?

 

[stormywyo]

In America, we use a class "B" GFCI--

 

[George Stolz]

In America, we use a class "B" GFCI--

Okay. I've never seen one. Is it used in that application?

 

[stormywyo]

A UL Class A GFCI is meant to trip between 3 mA and 7 mA. A UL Class B GFCI is meant to trip between 20 mA to 40 mA.

Look at 426.28--This would be one application. They protect equipment not personell.

 

[stickboy1375]

Do they even make class B gfci's anymore?

 

[Jraef]

Do they even make class B gfci's anymore?

Yes, but they are used mainly in machine control systems now, referred to as "Arcing Ground Fault" breakers. In commercial / residential systems, the new requirements for AFCIs (Arcing Fault Circuit Interrupters) have taken over where these used to be used. AFCIs are similar, but more sophisticated in some ways because 1) they don't require that the arc go to ground, and 2) they have to be able to distinguish between a normal "working" arc, such as in a light switch, and one that might cause a fire, i.e. a loose connection.

 

[dbuckley]

The term RCD - Residual Current Device - is used widely in Europe. Never heard of RCI, but it sounds plausible.