PZ40 Electricity Meter Box Series from China Suppliers - Durable Factory Solution for Safe Power Distribution
Usage Features
PZ40 modular terminal combination electrical appliance (PZ40 distribution box is suitable for single-phase three-wire or three-phase five-wire terminal circuits with AC frequency of 50Hz, rated working voltage of 220V or 380V, and rated current not exceeding 100A. It controls and distributes power to electrical equipment and protects against overload, short circuit, leakage and undervoltage of the line. It can be widely used in modern hotels, commercial buildings, industrial and mining enterprises, residential buildings and other buildings.
Environmental conditions for use
The ambient air temperature does not exceed +40°C, and the lower limit of the ambient air temperature is -5°C;
When the maximum temperature is +40℃, the relative humidity of the air shall not exceed 50%; higher relative humidity can be allowed at lower temperatures, for example, up to 90% at +20℃;
The altitude of the installation site shall not exceed 2000m;
Category II;
3
Product Features
The main structural components of the terminal combination electrical appliance include transparent cover, upper cover, box, mounting rail, conductive bar, wiring, double-wire cover and electrical switch components. The internal electrical switch components are all electrical components with a width of 9mm, installed on the top hat track, and can be combined arbitrarily according to needs. The disassembly and assembly are quick and convenient. The switch component handle is exposed, and the live and other parts are covered inside the upper cover. It can be easily operated by opening the door, and it is safe and reliable to use. There are inlet and outlet holes on the top, bottom, left, right and back of the box for easy wiring.
Product Introduction
A key feature of the PZ40 meter box is its operational reliability in specific environmental conditions. The device is designed to operate optimally in an ambient temperature range of -5°C to +40°C. This high temperature resistance ensures that the meter box can be installed in a variety of climate conditions without any loss of performance. Its humidity level is carefully designed to achieve a maximum relative humidity of 50% at +40°C and can be flexibly adjusted to 90% at lower temperatures (such as +20°C). This adaptability makes the PZ40 suitable for a variety of installation environments.
The PZ40 meter box installation requirements are also worth noting. It is classified as a Class II installation, which means it is suitable for environments where transient overvoltages are expected. The pollution degree is 3, which means the device can operate effectively in areas with moderate pollution levels. The installation altitude must not exceed 2000 meters to ensure that the meter box can maintain its integrity and functionality in different geographical locations.
The structural design of the PZ40 meter box is another highlight of its ease of use. The main components include transparent cover, upper cover, box body, mounting rail, conductive strip, line, double-line cover and electrical switch elements. The transparent cover allows easy observation of internal components for maintenance and monitoring. The built-in electrical switch elements adopt a 9mm modular width, can be installed on the top hat rail, and can be flexibly configured according to user needs. This modular design ensures that the meter box can be customized according to specific power needs.
The PZ40 meter box is designed with safety and convenience in mind. The switch element handles are exposed for easy operation, while live parts are securely covered in the upper cover. This thoughtful design minimizes the risk of accidental contact with live parts, thereby improving user safety. Multiple access holes are provided on the top, left, right and back of the meter box for easy wiring and installation. The PZ40 series meter box is a reliable and efficient power distribution solution that combines safety, flexibility and ease of use.
Frequently Asked Questions (FAQ)
What electrical systems is the PZ40 distribution box suitable for?
The PZ40 distribution box is suitable for single-phase three-wire or three-phase five-wire terminal circuits with an AC frequency of 50Hz, rated working voltage of 220V or 380V, and a rated current not exceeding 100A.
What are the temperature and humidity limits for operating the PZ40 meter box?
It operates optimally in temperatures ranging from -5°C to +40°C. For humidity, it permits up to 50% relative humidity at +40°C, and can adapt up to 90% relative humidity at lower temperatures such as +20°C.
What installation altitude limit applies to the PZ40?
To maintain its overall integrity and operational safety, the installation altitude of the site must not exceed 2000 meters.
How does the modular design of the switch components work?
The internal electrical switch components have a standardized modular width of 9mm and are mounted on a top hat rail. This allows them to be combined arbitrarily, making assembly and disassembly quick and convenient.
What safety measures are built into the PZ40 meter box?
The switch component handles are exposed for easy external operation, while all live parts are safely enclosed within the upper cover to prevent accidental contact. It also features a transparent cover for easy inspection.
Where can wiring be routed into the PZ40 distribution box?
The box is designed with multiple inlet and outlet wiring holes located on the top, bottom, left, right, and back, allowing for highly flexible installation options.

