[FUN] Area Classification for Field Connectors

[Stephen Mitschke]

I am currently working of a project in which we will be implementing Delta-Vwith Fieldbus. The problem we are trying to resolve is the Interlink brickis not listed for Class 1 Division 2 areas by a Nationally RecognizedTesting Laboratory such as UL or FM. Any help that you could provide wouldbe greatly appreciated.Randy Marek, McDermott

[Stephen Mitschke]

> Gents:> > I am not sure that I understand the question below.> > If we are talking about a brick without current limiting, then there is no> need for it to be listed by an NTRL if it is installed downstream of the> Non> Incendive current limiting device. Any part of the the portion of the> circuit downstream of the NI current limiting device can use ordinary> wiring> methods.> > On the otherhand, if we are talking about a brick that provides the> current> limiting required to make the downstream part of the segment a NI circuit,> then it will be nice to have the current limiter tested and certifed by an> NTRL. I have spoken with Factory Mutual on what it takes to get Fieldbus> stuff tested for NI circuits and it does not appear to be that difficult.> > You may want to contact Pete Byrne at FM who has been looking at approvals> on Fieldbus stuff. The last time I contacted him I used the email address> of> byrne@fmglobal.com.> > Good luck.> > Charles Hill

[Stephen Mitschke]

> A device such as the Interlink Brick is passive device and treated just> like> terminals, therefore it would never actually require citification for use> in> a Hazardous Loc Div 1 or Div 2 environment with either Intrinsic Safety or> Non Incendive protection techniques.> > Manny Romero> Business Development> Pepperl + Fuchs Asia