From the perspective of product design, electrical parameters, and load matching, the common operating power range of fan speed control wall switches is typically:
Minimum power approximately 75W
Maximum power approximately 500W
A satellite TV wall socket is a low-voltage connection port used for transmitting television signals, satellite signals, and radio frequency signals. Unlike 220V or 110V high-voltage sockets, satellite TV wall sockets only transmit signals, not power.
USB wall socket is a power device that integrates a traditional AC power socket with a USB DC output interface on the same panel.
• Directly output 5V or other standard USB DC voltages
• Built-in power conversion module (AC to DC)
• Powers USB devices without an external charger
• Typically installed on the wall in combination with a regular socket
Based on industry standards and electrical wiring experience, in a 220V power system:
• 2.5mm² copper wire: commonly used with a maximum capacity of 16A
• 4mm² copper wire: can carry 20A~25A
• 6mm² copper wire: commonly used for high-power equipment around 32A
Therefore, the most suitable wire for a 20A DP wall switch is:
✅ 4mm² copper core wire (BV 4mm² or RV 4mm²)
Assuming a rated voltage of 250V and a current of 20A, the maximum theoretical power is:
20A × 250V = 5000W
This means that a 20A DP Wall Switch can theoretically withstand a maximum load of 5000W.
