Relay Module 4 Channel 5VDC: An Overview
This is a LOW Level 5V 4-channel relay interface board, and each channel needs a 15-20mA driver current. It can be used to control various appliances and equipment with large current. It is equipped with high-current relays that work under AC250V 10A or DC30V 10A. It has a standard interface that can be controlled directly by microcontroller. This module is optically isolated from high voltage side for safety requirement and also prevent ground loop when interface to microcontroller. It is a 4 Channel Isolated 5V 10A Relay Module Opto-coupler, A wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on can control it. It is also able to control various appliances and other types of equipment with a large current.
Specification
| Parameter | Description |
|---|---|
| Operating Voltage | 5V DC |
| Control Signal Voltage | 3.3V to 5V DC |
| Number of Channels | 4 (Four) |
| Maximum Current per Channel | 10A |
| Maximum Voltage per Channel | 250V AC / 30V DC |
| Control Signal Input | Low-Level: 0-2.5V; High-Level: 3-5V |
| Relay Type | Single Pole Double Throw (SPDT) |
| Trigger Mode | Active High |
| Relay Indicator | LED indication for each relay channel |
| Opto-Isolation | Yes |
| Protection | Freewheeling diode |
| Dimensions | Typically around 75mm x 56mm x 18mm (L x W x H) |
| Mounting Holes | Standard PCB mounting holes |
| Operating Temperature | -30°C to +70°C |
| Application | Home automation, robotics, industrial control, etc. |
Features :
-
- One normally closed contact and one normally open contact
- Triode drive, increasing relay coil
- High impedance controller pin
- Pull-down circuit for the avoidance of malfunction
- Power supply indicator and Control indicator lamp
- Power supply and relay instructions, lit, the disconnect is off;
- The input signal, signal, common Terminal and start conducting;
- Useful for appliance control;
- DC or AC signal, control, you can control the 220V AC load;
- There is a normally open and one normally closed contact;
- The module is compliant with international safety standards, control and load areas isolation trenches.
Additional:
Relay output maximum contact is AC250V 10A and DC30V 10A. One can connect a microcontroller with standard interface directly to it. Red working status indicator lights are conducive to the safe use. It has a wide range of applications such as all MCU control, industrial sector, PLC control, smart home control. Each relay can individually switch on/off by an opto-isolated digital input, which that can connect directly to a microcontroller output pin. It only requires a voltage of approx 1.0V to switch the inputs on but can handle input voltages up to 5V. This makes it ideal for 1.0V to 5V devices.
- High-level trigger refers to the signal voltage between input and trigger, can be understood as a signal input with VCC cathode short-circuit triggered a way;
- Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, can be understood as the signal input terminal and the GND negative electrode short circuit triggered away 1-channel relay module connection.
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