JIC Type Lift Off Screw Cover (Submersible)


Non Metallic Screw Cover Enclosure

Ralston's NMSC Series enclosures are designed to provide protection indoors and outdoors, against dust, dirt, oil, and water for items such as: electronic and electrical controls and pneumatic components. The NMSC is well suited for submersible and corrosive environments.

All NMSC enclosures and transparent covers are made from injection molded polycarbonate material. The cover is held secure with four captive screws and sealed with a polyurethane gasket. The NMSC is design molded to accept DIN rails. All enclosures come complete with wall mounting brackets. Metal interior mounting plates are available as an option.

The NMSC is high gloss light grey. Optional interior mounting plates are available in bare aluminum or steel painted with high gloss white powder paint.


NMSC enclosures are built to the requirements of NEMA/EEMAC Type 12 specifications for use with industrial controls in ordinary locations, type 13 for an oil and dust tight enclosure, type 4,4X as a water tight corrosion resistant enclosure, and type 6,6P for a submersible enclosure.

NMSC enclosures are cUL (for Canada), and UL 50 listed type 3R,4,4X,6,6P,12,13 (file #E315456).



NMSC enclosures are CE type IP68


Special Orders
Custom units with special colours can be supplied on order.




  • Download PDF(s)
Drawings & Specifications
[ PDF | 0.1 MB ]
  • Download CAD files
CAD files are listed by part number. Find the part number in the PDF(s) above.
[ DWG | 0.3 MB ]
[ DWG | 0.3 MB ]
  • Accessories
See the Accessories page to
view available accessories.


Ralston’s Non-Metallic Enclosures are designed

to last in highly corrosion resistant areas. Fiberglass reinforced polyester ensures that our enclosures outlast

the competition’s. High-impact resistant, light weight, and

easy to machine, our non-metallic enclosures are a cost-effective solution for all indoor and outdoor extreme conditions.

RALSTON METAL PRODUCTS LTD. Watson Plant: 50 Watson Rd., South, Guelph, ON, N1L 1E2
Phone: 1.519.836.2968 | Toll Free: 1.800.265.7611 | Fax: 1.519.836.9763
E-mail: service@ralstonmetal.com | General Inquiries