Issue:
What is the PM5000, PM5500 Meter made of?

Product Line:
Powerlogic PM5000, PM5500 series Meter

Environment:
PM5000, PM5500

Cause:
To meet a specification requirement, what is used for the manufacturing of  the PM5xxx series meters?

The PM5560 has a plastic housing and is certified to UL61010.
The plastic on a PM556x is a combination of flame-retardant Polycarbonate and ABS (Acrylonitrile butadiene styrene) with a UL 94 V-0 rating.

See this SE Exchange for the information: Solved: Power meter construction? - Schneider Electric Community