As a well-recognized supplier of enclosures, cabinets, and chassis to OEM’s in wide range of industries, Bull Metal Products worked closely with our customer in the design and development of this lighting control cabinet. It is actually the master control cabinet for multiple integrated systems in which lighting control is an important part of the system.
The cabinet’s features include take-apart hinges that allow complete removal of the door in the field to make for unencumbered access for the installing electrician or a service technician. This feature is also significant for the assembly process in the factory. With the door being removable, each unit takes up less space on a bench or conveyer when it is being built. The back boxes are more easily handled in production without doors. The door is installed as the last step in assembly.
The complete, operational enclosure requires a number various components; relays, PC boards, switches, jacks, touch screens, circuit breakers, etc. Although our responsibility was only the sheet metal fabrication, the stack up of electronic components was significant which required close attention to detail in fabrication of the cabinet. Multiple PC boards and other components are mounted on welded brackets in the back box and/or stacked on top of one another, and then required to align with penetrations in the dead front panel which is a loose part secured by fasteners. Bull Metal’s engineering team tackled the challenge and brought some production cost saving ideas to our customer’s attention. Being able to secure the relays with one fastener instead of two fasteners was one such saving – not so much in the hardware, but in the build out labor. The use of extruded holes for self-taping fasteners as an alternative to pressed in threaded inserts (pems) is another cost saving detail that we worked hard in developing with our customer.
The enclosure has an attractive and durable powder coated finish with a screen-printed name/logo on the door. With an end use that often is outside in the elements this gasketed NEMA 3 enclosure is an example of the type of products fabricated at Bull Metal Products.
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