Carbon Steel/Stainless Steel Junction Box

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Electrical Enclosures

CBKL Series

The junction box offers a wide range of sizes and configurations to accommodate different project requirements for wiring space and terminal capacity. Whether used in residential electrical systems, industrial machinery, or commercial building installations, it provides a flexible and reliable solution for protecting electrical connections across diverse applications.

Features

The cabinet uses polyurethane foamed sealing technology, with a one-piece molded gasket. The cover is fastened with screws and plastic sleeves, achieving a protection level up to IP56.
Equipped with internal guide rail supports, rear wall-mounting holes, and mounting brackets for easy installation.
Material Thickness: High-quality cold-rolled carbon steel (1.5–2.0 mm); body 1.2–1.5 mm, door 1.5 mm, mounting plate 2.5 mm; optional stainless steel 304/316 available.
Surface Treatment: Galvanized (zinc coating ≥ 8 μm), overall thickness 1.5–2.5 mm.
Color Options: RAL7032, RAL7035.
Protection Level: IP56.

Specifications

Model	Dimensions			Model	Dimensions
Model	H (mm)	W (mm)	D (mm)	Model	H (mm)	W (mm)	D (mm)
CBKL15158	150	150	80	CBKL403012	400	300	120
CBKL151512	150	150	120	CBKL404012	400	400	120
CBKL20158	200	150	80	CBKL404012-J	400	400	120
CBKL201512	200	150	120	CBKL502012	500	200	120
CBKL20208	200	200	80	CBKL502012-J	500	200	120
CBKL202012	200	200	120	CBKL503012	500	300	120
CBKL30158	300	150	80	CBKL503012-J	500	300	120
CBKL301512	300	150	120	CBKL60208	600	200	80
CBKL301512-J	300	150	120	CBKL602012	600	200	120
CBKL30208	300	200	80	CBKL602012-J	600	200	120
CBKL302012	300	200	120	CBKL603012	600	300	120
CBKL302012-J	300	200	120	CBKL603012-J	600	300	120
CBKL303012	300	300	120	CBKL604012	600	400	120
CBKL303012-J	300	300	120	CBKL604012-J	600	400	120
CBKL401512	400	150	120	CBKL802012	800	200	120
CBKL40208	400	200	80	CBKL802012-J	800	200	120
CBKL402012	400	200	120	CBKL804012	800	400	120
CBKL402012-J	400	200	120	CBKL804012-J	800	400	120

Can the junction box size be customized, and will customization affect its protection rating or certification compliance?

Yes. Special dimensions can be customized, with a minimum size of 100×80×50 mm. Customization does not affect the protection performance, as the sealing structure continues to use the polyurethane foamed gasket. The lid and body are re-fitted precisely to maintain the IP56 protection level and ensure compliance with certification standards.

For electrical cabinets used in coastal areas such as power stations, which material is recommended?

It is recommended to use 316 stainless steel, which contains molybdenum that significantly enhances resistance to chloride ion corrosion, ensuring longer service life in marine or high-salinity environments.

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