NQ and NF Panelboards applications include commercial buildings, industrial buildings, data centers, stadiums, and offices. NQ and NF Panelboards are versatile panelboards that feature a wide selection of circuit breakers, accessories, and ready to install kits. These panelboards have many different options for your enclosure box and its accessories. This trim kit fits MH50WP front. NQ and NF enclosures are UL listed for use in the USA and Canada. NC trim fronts for interiors rated up to 250A may be screwed directly to the deadfront of the NF or NQ panelboard. NC trim fronts for interiors rated 400A or greater are vented and designed to be screwed directly to the Type 1, 2 enclosure of the NF or NQ panelboard.