PZ distribution box
PZ-type distribution box (distribution board) for three-phase AC 50Hz, rated voltage 220V / 380V, the main bus rated current 100A and below the three-phase four-wire power system, as to receive power and distribution of energy use. Widely used in industrial and mining enterprises and civil construction of the distribution, lighting, measurement and other purposes. Products with good security, electrical program flexibility, the combination of convenience, series, practical and strong, novel structure, high degree of protection features.
└────────── Distribution box
Conditions of Use
The surrounding air temperature is not higher than +40 ℃; not less than -5 ℃; and 24 hours, the average temperature is not higher than +35 ℃.
Ambient air relative humidity at a maximum temperature of +40 ℃ not more than 50%, at lower temperatures allow a greater relative humidity, such as +20 ℃ 90%, but should be taken into account as a result of temperature changes may Occasionally produce moderate condensation.
Indoor use, the use of the altitude of not more than 2000m.
Should be installed in the absence of severe vibration and shock and not enough to make electrical components subject to corrosion of the place.
Rated operating voltage: AC380V / 220V
Rated insulation voltage: 500V
Rated impulse withstand voltage: /
Main busbar rated current and rated short-circuit withstand strength: 100A, 6kA
The main switch of the sub-capacity: 6kA
Main switch rated current, limit short-circuit segmentation capability and short-circuit running section capacity:
Isolating switch: 100A Icw = 12Ie / s
Circuit Breaker: 125A Icu = Ics = 6kA
Overvoltage Category: III
Material group: IIIa
Pollution level: 3
Electrical Clearance: ≥5.5mm
Creepage distance: ≥ 8mm
Number of outlet circuits: 9
Each outlet circuit rated current and breaking capacity: 1-6 branch 63A / 6kA; 7-9 branch 20A / 6kA
Rated dispersion coefficient: k = 0.7
Housing protection class: IP30 - internal operating surface IP20C
Electric shock protection category: Class I
With leakage protection, the point, short circuit, overload and other protection devices.
Up and down the box around the back and can be set into the line knock-down hole for easy wiring.
Door with soft multi-strand braided wire and PE points inside the box link, the box structure to form a continuous protection circuit.
The surface of the cabinet is coated with epoxy powder. The surface of the cabinet is evenly and beautiful. It has good adhesion, good texture and comfortable appearance. The internal structural parts are galvanized and have certain anti-corrosion ability.