4-Channel Relay Module 5V, 12V, 24V Relay Expansion Board Low Level Trigger Relay Board Photocoupler Isolation (12V)

After-sales service - We guarantee all our products with a 100% product warranty and promise to provide you with the best customer service!If you have any problems with the 4-channel relay module, please contact us by email.We will do our best to reply within 24 hours.More options: The operating voltage of the relay module is 5V, 12V, and 24V.Each channel of the module can be triggered by a high or low level using a jumper.Stable performance: The relay board uses optocoupler isolation, providing strong driving capability and stable performance.The triggering current is 5 mA.The module can be set to high or low using a jumper setting trigger.The module uses a genuine, high-quality relay with normally open interfaces.Fault-tolerant design: This 4-channel relay module features a fault-tolerant design; even if the control line is broken, the relay will not be activated.Power indicator (green), 4-position relay status indicator (red).Fault-tolerant design: This 4-channel relay module features a fault-tolerant design; even if the control line is broken, the relay will not be activated. Power indicator (green), 4-position relay status indicator (red).24V solid-state relay, 12V relay module, 12V 4-channel relay board, 5V double relay with output, Kekeso 4-channel relay board, Arduino relay board, 4-channel relay module, 12V relay detector, 4-channel relay board, 12V 4-channel relay board, 40A relay boardFeatures:
Adopts a separate photocoupler isolation component, strong driving capability, stable performance.The trigger current is 5 mA.The module's operating voltage is selectable at 5V, 12V, and 24V.Each channel of the module can be triggered by a high or low level via a jumper.

Specification:
Weight: 60g / 2.1oz
Common interface load: AC 250V / 10A, DC 30V / 10A
Module size (L * W * H): 73 * 50 * 18.5mm / 2.9 * 2 * 0.7inch
Bolt hole: 3.1mm; 67 * 44.5mm (spacing)
Voltage: 5V, 12V, 24V (optional)

Module Interface:
1. DC+: Connect to the positive terminal of the power supply (a voltage is required for the relay; 5V, 12V, and 24V are available)
2. DC-: Connect to the negative terminal of the power supply.
3. IN1-IN4: Depending on the setting of each circuit, the corresponding relay can be controlled with a high or low level for suction.

Relay output terminal: With 12 interface lines, all interfaces can be directly connected to the cable, convenient for users.
1. NO1 - NO4: The relay normally opens the interface and is suspended before suction and is connected to COM after suction.
2. Common relay interface COM1 - COM4.
3. NC1 - NC4: Normally closed relay interface. The relay is briefly connected to COM before being activated and is suspended once activated.

High and low trigger selection terminal:
1. S1-S4 is the high-low trigger selection for relays 1-4 channels successively;
2. Common and short-short connection, the corresponding relay for the low-level trigger, the common and high-short connection for the high-level trigger.

Package List:
1 x 4-channel relay module

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