brock.christie
New User
- Location
- Solon, OH
- Occupation
- Controls Engineer
I am working on designing a Class I, Division 2 control system for a grab sampling application. The application will use a NEMA 4X enclosure for the controls components:
The field devices are proximity sensors (NAMUR-type), with M12 connections. Turck makes "HazLoc" cordsets (Tray Cable) that I could potentially use. I did see that Appleton makes TC Cable Connectors rated for Class I, Division 2; but these glands have NPT end connections. The NEMA 4X enclosure I imagine won't accept that type of fitting, as the wall thickness is most likely too thin, so is a locknut sufficient for this type of cable gland? It looks like the aluminum connectors (in Appleton literature) can be supplied with zinc plated steel locknuts. Also, am I missing something in my design strategy that I've expressed so far?
- CompactLogix 5370 Controller
- PanelView Plus 7 Graphics Terminal
- PULS 120VAC/24VDC Power Supply
- Turck Isolating Switching Amplifiers (4-Channel)
The field devices are proximity sensors (NAMUR-type), with M12 connections. Turck makes "HazLoc" cordsets (Tray Cable) that I could potentially use. I did see that Appleton makes TC Cable Connectors rated for Class I, Division 2; but these glands have NPT end connections. The NEMA 4X enclosure I imagine won't accept that type of fitting, as the wall thickness is most likely too thin, so is a locknut sufficient for this type of cable gland? It looks like the aluminum connectors (in Appleton literature) can be supplied with zinc plated steel locknuts. Also, am I missing something in my design strategy that I've expressed so far?