EJB CORTEM
Junction box IIB+H2
EJB series junction boxes are suitable for installation in any areas of a plant where there is a risk of explosion and/or classified as Zone 1, 2, 21, 22. The quality of this product is recognized and valued the world over for its aluminium alloy and the mechanical property of its finishes. The EJB series is mostly used as a box to carry terminals and busbars, fuse carriers, transformers, reactors and barriers, though it is also used to produce control and signalling boards, light and power boards and surge arresters, and motor starter boxes with various configurations, which are custom made to the requirements of our customers worldwide.
KEY FEATURES:
- Group IIB+H2.
- IP 66/67.
- Cast hinges (except for EJB-01).
- Available with round or square window for viewing analog or digital instruments.
Body and lid in low copper content aluminium alloy. Stainless steel cover bolts. Internal/external earth screws. RAL 7035 polyester coating. Galvanized steel mounting brackets. Silicon gasket.
TECHNICAL SPECIFICATIONS:
| MECHANICAL FEATURES |
Body and lid: Low copper content aluminium alloy Hinges: Cast (except for EJB-01), stainless steel for new models Lid handle: Made of black painted steel for EJB-6/6B/EJB-6BB and EJB-7/7B models (see below). Made of black painted plastic for EJB-55/55B models Gasket: Acid, hydrocarbon and high temperature-resistant silicone, located between body and lid Certification label: Adhesive label located inside on empty enclosures; aluminium label riveted onto lid on other versions Bolts and screws: Stainless steel Earth screws: M6 stainless steel. On inside and outside of body and on lid complete with anti-rotation brackets Mounting brackets: Electrogalvanized steel (cast aluminium feet for AQS-1) Coating: Polyester coating RAL 7035 (Light grey) : The STANDARD of the aluminium alloy used by Cortem has passed the tests required by standards EN 60068-2-30 (hot/humid cycles) and EN 60068-2-11 (salt mist tests) |
| ELECTRICAL FEATURES |
Rated voltage: 24 / 800 V Rated frequency: 50 / 60 Hz Modular terminals Terminal cross-sectional area: 2.5; 4; 6; 10; 25; 35; 70; 95; 120; 185; 240; 300 [mm2] Rated current: 12.5 – 452 [A] Max. current density: 1.5 – 7 [A/mm2] Multi-pole terminals Terminal cross-sectional area: 3×16; 4×16; 3×25; 4×25; 3×40; 3×40; 4×40; 3×70; 4×125; 4×125; 3×200; 4×200; 3×315 [mm2] Rated current: 48 – 252 [A] Max. current density: 0.8 – 3 [A/mm2] Busbars: Dimensions of busbars: 20×5; 30×5; 40×5; 50×5; 60×5; 80×5; 100×4; 80×8; 100×5 [mm2] Rated current: 240 350 480 600 690 800 800 1000 1000 [A] |
