Know Your Electrical Enclosure: Junction Boxes

August 6, 2018 | Category: Enclosure Applications, Junction Boxes

Steeline Enclosure Solutions knows that a wide variety of industries require standard and custom-fabricated electrical enclosures to keep operations running smoothly. Some of the many industries that use our cutting-edge electrical enclosure solutions are: automotive, utilities, building automation, food & beverage, pulp & paper, printing & publishing, energy, communications, textiles, wastewater treatment, petrochemical, and more. Today we look at junction boxes.

What Type of Electrical Enclosures Are Junction Boxes?

Electrical junction boxes house electrical connections for the purpose of protecting the connections themselves from tampering and for protecting the operators required to service and maintain the connections. Junction boxes can have what are called ‘knockouts’, which are partially punched opening which can be detached allowing for conduits, connectors, and cables to be placed inside. Junction boxes are also known as street cabinets or serving area interfaces.

Which Junction Box Varieties Does Steeline Offer?

Steeline Enclosure Solutions offers three different types of standard Junction Box. Following is a deep dive on the specifications for each one of our units. Should you have any questions about any of the units, our team of electrical enclosure experts is here to help.

Steeline Continuous Hinge “SJB” Junction Box Type 12

Steeline Continuous Hinge “SJB” Junction Box Type 12

Applications:

The Continuous Hinge “SJB” Junction Box Type 12 offers seamlessly welded corners, external screw clamps that are quick 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.

Finish:

The “SJB” Junction Box has a stainless steel brushed finish, carbon Steel housing and doors (304-316L), ANSI 61 gray powder paint, a powder paint over phosphate surface, and an optional mounting panel.

Protection Ratings:

  • UL/cUL Type 12
  • UL File Number: E158158
  • NEMA 12
  • IEC 60529, IP65

Available Material:

  • 14 or 16 ga carbon steel Enclosure/Door
  • Mounting panels
  • Single door-UL Type 12
  • External, Type 12 screw clamps
  • Left-hand door hinge opens to 180 degrees

Optional Accessories:

  • MPL (Carbon Steel, Stainless Steel, or Aluminum)
  • Window Kits
  • Climate Control options

Modification Service: Optional modifications are available per customer specifications and request.


Steeline Continuous Hinge “SJB” Junction Box Type 4 & 4X

 Steeline Continuous Hinge “SJB” Junction Box Type 4 & 4X

Applications:

The Steeline Continuous Hinge “SJB” Junction Box is intended for use outside in corrosive and non-corrosive environments. If you are looking to protect your equipment from climate, heat, various liquids and contaminants, Steeline’s Junction Box 4 and 4X will fit your enclosure needs. This junction box has smooth ground seams and external screw clamps that are quick and easy to operate.

Finish:

The “SJB” Junction Box Type 4 & 4X was made with a #4, stainless steel brushed finish, carbon steel housing and doors (304-316L), exterior and interior (steel) ANSI 61 gray powder paint, a powder paint over phosphate surface, and optional mounting panel.

Protection Ratings:

  • UL/cUL Type 12, 13, 4 and 4X
  • UL File Number: E158158
  • NEMA 4 and 4X
  • IEC 60529, IP65

Available Material:

  • 14 or 16 ga carbon steel enclosure/door
  • 304 or 316L Stainless Steel
  • Weld nuts provided for optional mounting abilities
  • External mounting feet

Optional Accessories:

  • Optional MPL (Carbon Steel, Stainless Steel, or Aluminum)
  • Window Kits
  • Climate Control

Modification Service: Optional modifications are available per customer specifications and request.


Steeline Continuous Hinge “SJB” Junction Box Type 4 & 4X with Quarter-Turn Latch

Steeline Continuous Hinge “SJB” Junction Box Type 4 & 4X with Quarter-Turn Latch

Applications:

The “SJB” Continuous Hinge “SJB” Junction Box is intended for both indoor and outdoor usage in corrosive and non-corrosive environments. 4 and 4X enclosures are intended for instrument housings, electrical control enclosures, terminal wiring boxes and electrical junction boxes. If equipment is consistently exposed to water, harmful chemicals, contaminants and liquids, this junction box is intended to protection the equipment under these circumstances.

Finish:

Door and housing are built from carbon steel with exterior and interior surfaces painted in ANSI 61 textured Gray. Optional mounting panel available.

“SJB” Continuous Hinge Configuration:

  • Single door Type 4 or 4X
  • Mounting Panel
  • 180 degree left hand hinge capability
  • Quarter-Turn latch

Protection Ratings:

  • UL/cUL Type 12, 13, 4, and 4X
  • UL File Number: E158158
  • NEMA 12, 13, 4, and 4X
  • IEC 60529, IP65

Available Material:

  • 14-16 ga carbon steel Enclosure/Door
  • Continuous hinge
  • Seams continuously welded and ground smooth
  • Quarter-Turn latch with Screw Drive slot
  • External mounting feet
  • Weld nuts provide for internal mounting options

Optional Accessories:

  • Optional 14 ga MPL (Carbon Steel, Stainless Steel, or Aluminum)
  • Window Kits
  • Climate Control options

Modification Service: Optional modifications are available per customer specifications and request.


If you are looking for a steel enclosure to fit the needs of your business, we service all industries. Our attention to quality at Steeline Enclosure Solutions is incomparable. Contact our sales and service department to find out more about how Steeline’s enclosure solutions can work for you.