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AH connection box is used for connection between power and heating cable. It is fixed on pipe. It is designed and manufactured according to the requirements of increased safety or explosion-proof electrical appliances.
It is applicable to division 1 and 2 of explosive environment, IIA-IIC hazardous area and flammable dust environment division 21 and 22.
The shell is made of high-quality aluminum alloy by die-casting, and the surface is high pressure electrostatic sprayed; there are many types and specifications of inlet and outlet; it is suitable for hazardous places such as petroleum, chemical, offshore platforms, military, docks, etc. It is used for wiring in AC 50Hz, voltage 220V/380V circuit.
| Type | Rated Volt | Rated Current | Protection Class | Diameter | Material |
| AH-A | 220V/380V | 20A | ExeIIBT6 Gb ExdIICT6 Gb | G1/2～G2 | Cast aluminum |
| AH-B | 220V/380V | 20A | ExeIIBT6 Gb ExdIICT6 Gb | G1/2～G2 | Cast aluminum |
| AH-C | 220V/380V | 20A | ExeIIBT6 Gb ExdIICT6 Gb | G1/2～G2 | Cast aluminum |
| AH-C | 220V/380V | 20A | ExeIIBT6 Gb ExdIICT6 Gb | G1/2～G2 | Cast aluminum |
Before installation, please carefully check the connection box (such as damage, deformation, looseness, etc.), otherwise it is not allowed to install and replace it in time. When connecting the internal wiring, the connecting screw should be tightened. It is strictly forbidden to entangle the cores in the connection box to ensure sufficient electrical clearance.
All fixed screws are tightened to ensure explosion-proof performance.
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