Product Description:
		   				4 Channel Relay board suitable for controlling various appliances and equipment with high current consumption.
	
		
			| Working Voltage |  | 12 VDC | 
		
			| Operating Current max |  | 200 mA | 
		
			| Output Type |  | Relay | 
		
			| Relay Contacts |  | Single Pole Change Over | 
		
			| Number of Channels |  | 4 | 
		
			| Input Isolation |  | Yes (Opto Coupler) | 
		
			| Input Activation |  | Short to Ground | 
		
			| Voltage on Input |  | 12 VDC | 
		
			| Current to Ground * |  | 10 mA | 
		
			| Relay Specifications |  |  | 
		
			| AC voltage maximum |  | 250 V | 
		
			| AC current maximum |  | 10 A | 
		
			| DC voltage maximum |  | 30 V | 
		
			| DC current maximum |  | 10 A | 
		
			| Dimensions |  | 72 x 52 x 18mm (length x width x height) | 
		
			| Manufacturer |  | Haitronic | 
		
			| Manufacturer Part Number |  | HR0051A | 
	
* Use an Open-Collector transistor or Open-Drain MOSFET to pull to the ground.