Distribution box model PZ30-

The PZ30 distribution box is a low-voltage modular power distribution unit designed for AC 50Hz circuits, offering overload, short circuit, and leakage protection for residential, commercial, and industrial applications.Overview and ApplicationsThe PZ30 distribution box is a modular terminal power distribution device suitable for single-phase three-wire or three-phase five-wire circuits with rated voltages up to 220V/380V and total currents typically ranging from ≤100A to 125A depending on the model ( ). It is widely used in residences, office buildings, shopping malls, factories, high-rise buildings, hotels, hospitals, ports, and industrial enterprises ( ). Its design ensures triple protection against overload, short circuit, and leakage, making it a reliable choice for modern electrical installations ( ).Construction and MaterialsPZ30 boxes are constructed from high-strength stainless steel or cold-rolled steel, often with powder-coated finishes for corrosion resistance and aesthetic appeal ( ). Sealing components are made of silicone rubber, providing resistance to oil, acids, alkalis, high temperatures, and aging ( ). External fastening components are typically stainless steel, ensuring durability in harsh or outdoor environments ( ).Installation MethodsThe PZ30 series supports two main installation methods:Exposed installation (M): Mounted on the surface of walls or panels.Concealed installation (R): Embedded within walls or structures for a cleaner appearance ( ).Multiple entry points with different orientations allow flexible wiring configurations to suit various installation requirements ( ).Standards and CompliancePZ30 distribution boxes comply with international and national standards, including IEC60670, IEC60439-1, GB7251, and GB/T24274, ensuring safety, reliability, and compatibility with low-voltage switchgear and control equipment ( ).Environmental ConditionsThe boxes are designed to operate in ambient temperatures from -5℃ to +40℃, with relative humidity up to 50% at 40℃ or higher at lower temperatures, such as 90% at 20℃ ( ). Reduced capacity operation is recommended if environmental conditions exceed these limits.Key FeaturesModular design for easy expansion and maintenance ( )Triple protection: overload, short circuit, and leakage ( )Suitable for AC 50Hz, 220V/380V circuits ( )Durable materials with anti-corrosion and anti-aging properties ( )Flexible installation options: surface-mounted or flush-mounted ( )Multiple entry orientations for wiring convenience ( )The PZ30 distribution box is a versatile, reliable, and standard-compliant solution for low-voltage power distribution in a wide range of applications, combining safety, durability, and ease of installation.