Core Features of ZCEBOX Low-Voltage Distribution Box Junction Boxes
In low-voltage scenarios of civil buildings and general industry (residential power distribution, commercial complexes, low-voltage circuits in ordinary workshops), junction boxes need to adapt to core requirements such as AC 220V/380V low-voltage power supply, moisture and dust prevention, and convenient installation and maintenance. Explosion-proof function is not required, but safety, stability and practicality in low-voltage scenarios must be guaranteed. Focusing on the core design highlights of low-voltage non-explosion-proof junction boxes, ZCEBOX complies with low-voltage electrical standards (GB 7251, IEC 60439):
1.Core Design for Low-Voltage Adaptation + Basic Protection
Material Selection: Adopt modified flame-retardant PP + glass fiber composite material (density ≤1.3g/cm³), flame retardant grade UL94 V-0, low smoke and halogen-free (smoke and toxicity grade FT2), eliminating fire hazards in low-voltage scenarios; temperature resistance range -20℃~85℃, corrosion resistance grade ISO 12944 C3, adapting to humid and slightly dusty indoor and outdoor environments without deformation or cracking risk.
Sealing Protection: The box joint is equipped with an integrally formed silicone sealing ring (Shore hardness 50±5, no aging or cracking) with IP65 protection grade, effectively isolating rainwater and dust intrusion; the wiring hole has a built-in elastic sealing plug (suitable for 1.0-4.0mm² low-voltage cables), which automatically rebounds and seals after plugging and unplugging, no additional sealing treatment is required, ensuring the insulation safety of low-voltage circuits.
Low-Voltage Special Terminals: Built-in modular low-voltage terminal block (supporting 16-way wiring, pitch 2.54mm), terminals adopt nickel-plated red copper material (current capacity ≥25A, contact resistance ≤8mΩ), adapting to low-voltage power/signal circuits; wiring torque is 1.0-1.5N·m, combined with anti-loose shrapnel design to avoid loose wiring caused by vibration.
2.Structural Optimization + Practical Function Highlights
Flexible Installation: Supports both wall-mounted and embedded installation methods; 4 sets of expansion bolt holes (aperture φ8mm) are reserved on the back of the box, and horizontal calibration lines are designed at the bottom for quick and accurate installation positioning; weight ≤500g, which can be installed by a single person, adapting to the narrow installation space of civil buildings.
Convenient Operation and Maintenance: Quick-release buckle design (opening the cover in 3 seconds without tools), laser-etched marks such as voltage level and terminal number on the box surface (resistant to wiping without fading); the terminal block adopts a pull-out structure, which can be pulled out as a whole during maintenance without disassembling the cables; built-in simple cable management posts (3 groups arranged vertically) to avoid messy internal lines.
Environmental Adaptation: Equipped with a small replaceable moisture-absorbing cotton module (moisture absorption capacity ≥15g/100cm³), combined with the diversion groove at the bottom of the box, quickly absorbs condensed water to prevent oxidation and corrosion of low-voltage terminals; the inner edge of the box adopts a rounded corner design (radius ≥3mm) to avoid scratching hands during installation and maintenance; built-in rubber buffer pad (thickness 5mm) to absorb slight vibration during equipment operation and protect internal wiring terminals.
With exclusive design for low-voltage scenarios, without redundant explosion-proof structure, it adapts to various low-voltage power distribution circuits with the core advantages of lightweight, high protection and easy operation and maintenance, ensuring the safe and stable operation of low-voltage systems in civil and general industrial fields.
E-mail: sales@zcebox.com