cpickett
Senior Member
- Location
- Western Maryland
- Occupation
- Electrical Engineer
Hi All,
First post, but longtime lurker and want to say that I have learned a great deal from browsing this forum a few times a week. Finally registered because I need some help.
I have a Class I, Div 2 location that I need to install some RTDs in. These would be just PT100 RTDs, sensing element only, no transmitter. According to 501.105(B)(2) exception, I believe that I can use an RTD and junction box that isn't marked for Class I, Div 2. Is my assumption correct?
Additionally, they are going to be connected to an Allen Bradley Point IO RTD input card in a cabinet in the unclassified space. The input card is p/n 1734-IR2 which is listed for Class I, Div 2 installations, and the data sheet has a drawing showing the connection for RTDs. Does this allow me to use a general purpose RTD and junction box?
Appreciate the help,
-Chris
First post, but longtime lurker and want to say that I have learned a great deal from browsing this forum a few times a week. Finally registered because I need some help.
I have a Class I, Div 2 location that I need to install some RTDs in. These would be just PT100 RTDs, sensing element only, no transmitter. According to 501.105(B)(2) exception, I believe that I can use an RTD and junction box that isn't marked for Class I, Div 2. Is my assumption correct?
Additionally, they are going to be connected to an Allen Bradley Point IO RTD input card in a cabinet in the unclassified space. The input card is p/n 1734-IR2 which is listed for Class I, Div 2 installations, and the data sheet has a drawing showing the connection for RTDs. Does this allow me to use a general purpose RTD and junction box?
Appreciate the help,
-Chris