Speaker Protection Board, High Power Speaker Protect Relay Board 2.1 Channel Speaker DC Protector Module

This is high power speaker protection relay board 2.1 channel speaker DC protector module. This common power DC protection board uses an opto-coupler. Since the opto-coupler has input and output isolation. It has electrical signal transmission has the characteristics of uni-directionality, so it has good electrical insulation and anti-interference ability. Since the input end of the opto-coupler belongs to the low-resistance type of current type operation, it has strong common mode suppression capability. Made of classic UPC1237 specially designed speaker protect integrated board, with heat sink on relay power supply IC. With two functions, one is power on delay (3 second) function, the other is DC protection function( effective for at least 1V). With LED indicator, the light will be on as the relay pull-in during working; printed with component name on the board, simple to wire it up with your appliance.

Speaker Protection Specification:

• Input Voltage: DC12-16V or AC12-16V
• Channel Design: Independent 3 Channels
• Can Withstand Power: Power Within 300Wx3
• Power on Delay Time: 3S
• With LED Indicator: Yes

Speaker Protection Features:

• The speaker protector board can be operated with AC 12~15V and it needs a separate power supply to be powered.
• Made of classic UPC1237 specially designed speaker protect integrated board, with heat sink on relay power supply IC.
• Adaptable and reliable for higher voltage and long-time working, low heat generated during working.
• With two functions, one is power on delay (3 second) function, the other is DC protection function( effective for at least 1V).
• With LED indicator, the light will be on as the relay pull-in during working; printed with component name on the board, simple to wire it up with your appliance.

Package Included:

1 x Speaker Protection Board, High Power Speaker Protect Relay Board 2.1 Channel Speaker DC Protector Module