Introduction:
LWHT series distribution box, which meets IEC60529 standard, is attractive and durable, safe and reliable, which is widely used in various places such as factories, mansions, residences, shopping centers and so on.
Waterproof Power Distribution Box
1. Outdoor Power Distribution
2. Used for home, commercial, hotel and so on
3. IP55 rated units feature a hose proof cap which maintains the international protection rating when the accessory is not being used.
4. Resistance to severe weather and ageing
Waterproof DB box LWHT Series | |||||
| Model | Din-rail(mm) | Terminal bar | (P)L*W*H(mm) | QTY/CTN | (C)W*H*D(mm) |
| LWHT-2P | 45 | - | 120*55*90 | 100 | 535*260*465 |
| LWHT-5P | 105 | 3+3 | 119*159*90 | 40 | 495*335*475 |
| LWHT-8P | 175 | 4+5 | 20*155*90 | 30 | 480*480*420 |
| LWHT-12P | 230 | 8+5 | 255*198*108 | 20 | 550*400*530 |
| LWHT-15P | 290 | 8+6 | 309*198*108 | 15 | 613*555*325 |
| LWHT-18P | 320 | 8+8 | 363*198*100 | 15 | 610*560*380 |
| LWHT-24P | 230*2 | (8+5)*2 | 360*280*108 | 10 | 595*380*320 |
A distribution box contains large amounts of parameter data. Generally, it constitutes a low-voltage area. According to electrical wiring method, it is required to assemble switchgear, measuring instruments, protective appliances, and auxiliary equipment in a closed or semi-enclosed metal cabinet or screen to form a low-voltage power distribution box. During normal operation, the circuit can be turned on or off by means of manual or automatic switches.
The distribution box is characterized by small size, easy installation, special technical performance, fixed location, unique configuration function, not restricted by the site, it also has other merits, for example, a wide range of application, a stable and reliable operation, high space utilization, small footprint, and environmental protection.The cover of Plastic Distribution Board is injection-molded with flame retardant PC material, which has high transparency and hardness, and is not easy to deform.
The distribution box is also a control center that directs various components in the power supply line to reasonably distribute electrical energy. It is a control link that reliably receives the upper power supply and correctly feeds out the load electrical energy. It is also the key to obtaining users' satisfaction with the power supply quality. Improving the operational reliability of power Plastic Distribution Board is the goal of creating high-quality projects.
The purpose of the distribution box: distribute electric energy reasonably, facilitate the opening and closing operation of the circuit. It can visually display the conduction state of the circuit with a high level of safety protection.
Safety operation specification for distribution box and switch box
1. The metal box of the distribution box, the switch box, the metal electrical installation board, and the metal base and shell of the electrical appliance that are normally not charged must be electrically connected to the PE wire through the PE wire terminal board. (www.dgjs123.com Electrical Technology Home) The metal box door and the metal box must be electrically connected by using braided soft copper wire. The electrical installation board of the distribution box must be divided into N line terminal board and PE line terminal board. The N wire terminal board must be insulated from the metal electrical installation board; the PE wire terminal board must be electrically connected to the metal electrical installation board.
2. The connection wires in the distribution box and switch box must be insulated copper core wires. The color markings of the wire insulation shall be arranged and arranged neatly according to the requirements of Article 5.1.11 of this code; the branch joints of the wires shall not be crimped with bolts, but shall be welded and wrapped with insulation, and there shall be no exposed live parts.
3. The electrical appliances (including sockets) in the Plastic Distribution Board and switch box should be fastened on the electrical installation board according to their specified positions, and should not be skewed and loose.
4. The box size of the distribution box and switch box should be compatible with the number and size of the electrical appliances in the box. The electrical installation dimensions of the electrical installation board in the box can be determined according to Table 8.1.14.
The number of Plastic Distribution Board mainly refers to four types of miniature circuit breakers.
One of the most widely used terminal protection appliances in building electrical terminal distribution devices. It is used for single-phase and three-phase short circuit, overload and overvoltage protection below 125A, including single-pole 1P, two-pole 2P, three-pole 3P, and four-pole 4P.
Miniature circuit breakers are composed of operating mechanisms, contacts, protection devices (various releases), and arc extinguishing systems. Its main contacts are manually operated or electrically closed. After the main contact is closed, the free trip mechanism locks the main contact in the closed position. The coil of the overcurrent release and the thermal element of the thermal release are connected in series with the main circuit, and the coil of the undervoltage release is connected in parallel with the power supply.
When the circuit is short-circuited or severely overloaded, the armature of the overcurrent release is pulled in to make the free release mechanism act, and the main contact disconnects the main circuit. When the circuit is overloaded, the thermal element of the thermal release will heat up and bend the bimetal, pushing the free release mechanism to act. When the circuit is undervoltage, the armature of the undervoltage release is released. Also actuate the free trip mechanism.
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