Power Limited Tray Cable

[jbolen]

I have project where contractor is wanting to use Power Limited Tray Cable, PLTC 300V approved for underground wiring at 230 volts.

 

[don_resqcapt19]

Per the UL Guide Information for "Power Limited Circuit Cable (QPTZ", that cable is only for use with Class 2 or 3 power limited circuits.

This category covers power-limited circuit cable intended for use in Class 2 or Class 3 circuits as described in Article 725 of NFPA 70, "National Electrical Code" (NEC).

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This UL category includes CL2, CL3 and PLTC cables.

 

[tom baker]

Tray cable is 600 V rated and approved for direct burial. Locally the septic installers use it from the control panel to the pumps and floats

 

[don_resqcapt19]

Yes, Tray Cable, Type TC, Article 336, would be fine for the application, but I would reject PLTC based on the UL Guide Information.

 

[Jraef]

Per the UL Guide Information for "Power Limited Circuit Cable (QPTZ", that cable is only for use with Class 2 or 3 power limited circuits.
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This UL category includes CL2, CL3 and PLTC cables.

And just to be clear, Don brought this up because Class 2 and 3 circuits are limited to 150V max in certain cases, so it (PLTC cable) could NEVER be appropriate for any 230V circuit.