
Type 12 “SJB” Junction Boxes
Type 12 Junction Boxes
The Continuous Hinge “SJB” Junction Box Type 12 offers seamlessly welded corners, external screw clamps that are quick, strong, and easy to operate, external mounting feet, and weld nuts that provide different internal mounting options.
The “SJB” Junction Box is intended for electrical control enclosures, terminal wiring, and electrical junction boxes. This junction box will protect against dirt, dust, oil, and water.

Steeline Enclosures produce NEMA 12 enclosures that are intended mainly for indoor industrial, manufacturing, and machining applications. Steeline Enclosure Solutions manufacturers Type 12 enclosures to NEMA certified standards.
Type 12 metal enclosures protect against the above mentioned, as well as dripping non-corrosive liquids, different types of oils, and lubricants. Our adherence to NEMA standards will give you a quality enclosure for any industrial application. We produce a number of enclosure types in aluminum, carbon steel and stainless steel delivered quickly at competitive prices.
When looking for Type 12 Junction Boxes, ensure that the following have been checked off your list:
- Is your enclosure going to be used primarily for industrial indoor use? If not, you are not looking for a Type 12 enclosure.
- Type 12 enclosures protection against dust, falling dirt, fibers, and lint
- Type 12 enclosures protect from dripping water and other noncorrosive liquids
- Type 12 enclosures are resistant to damage from the external condensation of noncorrosive liquids
- Doors are equipped with oil-resistant gaskets
- Our enclosures are available with pre-punched holes, cutouts, lift-off hinges, insulation, latches or locks, whichever is more preferable to your application.
Steeline offers a standard line of Type 12 junction boxes or our highly skilled team of engineers can help you design a custom Type 12 junction box for your exact specifications. Contact a Steeline Enclosures team member to learn more about the Steeline Enclosures product lines and how we can modify standard configurations for your needs.
*Our team of experts are available to review and customize enclosure solutions to match your specific needs. If you do not see a system that filts your requirements, CONTACT US for a custom engineered system.