4-channel relay module, base relay expansion board with optical amplifier for Arduino (5 V)

Features:

1. Adopted the connection panel camera connection, high capacity of connection and stable performance. The current is 5 mA.
2. The operating voltage of the module can be selected between 5 V, 12 V or 24 V.
3. Each channel of the module can be activated at a high or low level during the configuration of a bridge.
4. Design tolerant of fallos; Even if the control line is interrupted, the relay will not function.
5. Power indicator (green), 4-way relay status indicator (red).

Specifications:

Characteristics:
Adopts photo connection panel connection, high power capacity and stable performance. The activation current is 5 mA.
The operating voltage of the module can be selected at 5 V, 12 V or 24 V.
Each channel of the module can be activated at a high or low level through the configuration of a bridge.
Design tolerant to failures: included if If the control line is broken, the relay will not disappear.
Light indicator (green), 4-way relay status indicator (red).
Easy to use interface design; All interfaces can be connected directly to the terminal cable, very convenient. A
Module size (L*An*Al): 73*50*18.5 mm/2.9*2*0.7 inches
Perno hole: 3.1 mm; 67*44.5 mm (space)
Voltage: 5 V, 12 V, 24 V (optional)
Module interface:
1. CC+: Connect to the positive terminal of the power supply (requires voltage for the relay; 5 V, 12 V and 24 V sound selectable)
2. CC-: Connect to the negative terminal of the power source.
3. IN1-IN4: Depending on the configuration of each circuit, the corresponding relay can be controlled at a high or low level.
Terminal of relay signal: With 12 interface lines, all of them are interfaces can be connected directly to cable, convenient for users.
1. NO1--NO4: The relay normally disconnects the interface, the relay suspends before being activated, and it connects to COM after being activated.
2. Common relay interface COM1--COM4.
3. NC1--NC4: Normally secure relay interface. The relay is circuited to the COM before it is activated and is suspended afterwards.
High and low level loss selection terminal:
1. S1-S4: High-low level disappearing selection for relay channels 1-4, successively.
2. Connection of COM circuit and bottom: the relay corresponds to disappear from the bottom level, and connection of the COM circuit to the top to disappear from the high level.
Package list:
1 x Relay module