Finding your suitable dc relay 8 channel is not easy. You may need consider between hundred or thousand products from many store. In this article, we make a short list of the best dc relay 8 channel including detail information and customer reviews. Let’s find out which is your favorite one.
Best dc relay 8 channel
1. Huayao 2pcs 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
Feature
5V 8-Channel Relay interface board, each one needs 15-20mA Driver Current; Equiped with high-current relay, AC250V 10A ; DC30V 10AEach relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground.
With power indicator,8-way road has a status indicator. With a relay coil to absorb the diode protection.
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
The 8 channels are optically isolated, safe, reliable, anti-interference. Widely used for all MCU control, industrial sector, PLC control, smart home control
Description
Huayao 8-Channel Relay ModuleFeature:
Can be used as microcontroller development board module can be used as home appliance control
5 V-12V to TTL control signal
The control signal DC or AC, 220V AC load can be controlled
There is a normally open and one normally closed contact
A power indicator light
A control indicator, pull off, disconnect does not shine
Transistor drive to increase the relay coil control pins high impedance
The control pin has a pull-down circuit to prevent malfunction relay vacant
Specifications:
Product Name: 8-Channel Relay Module
Output Channel: 8
Power Supply: 5V
Load Voltage: AC 250V 10A, DC 30V 10A
Total Size: 137mm x 56mm x 17mm/ 5.4" x 2.2" x 0.7" (L*W*H);
Mounted Hole Size: 3mm/ 0.12"
Mounted Hole Center Distance: 132 x 50mm/5.2" x 2"(L*W);
Material: Electric Part
Package Content :
2 x 8-Channel Relay Module
2. LANDZO 8 Channel 5V DC Relay Module Expansion Board for Arduino Raspberry Pi DSP AVR PIC ARM
Feature
5V 8-Channel Relay interface board equiped with high-current relay, AC250V 10A ; DC30V 10AStandard interface that can be controlled directly by all microcontroller (Arduino , Raspberry pi ,51, AVR, ARM, )
ApplicationSupports all MCU control, The industrial field, PLC control, Smart home control
This module complies with international safety standards, with isolation slot in the control area and load area;
Description
Product introductionCan be used as microcontroller development board module can be used as home appliance control
5 V-12V to TTL control signal
The control signal DC or AC, 220V AC load can be controlled
There is a normally open and one normally closed contact
A power indicator light
A control indicator, pull off, disconnect does not shine
Transistor drive to increase the relay coil control pins high impedance
The control pin has a pull-down circuit to prevent malfunction relay vacant
The module size: 138m * 56mm * 18.5mm (length * width * height), with four fixed bolt holes, holes 3.1mm, spacing 131mm * 49.5mm,net weight: 120g
3. KNACRO 8-Channel 8-CH Relay Module DC 12V with Optocoupler isolation H/L high/low Level Triger for Arduino
Feature
This module Operating voltage 12VThis module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A
Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA
This module can be high or low by a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
Description
1. the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A;2. using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;
3. the module Operating voltage 12V;
4. the module can be high or low by a jumper setting trigger;
5. fault-tolerant design, even if the control line is broken, the relay will not operate;
6. the power indicator (green), the relay status indicator (red)
7. the interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient
8. module size: 73mm*50mm*17mm (L*W*H)
Module interface:
1. DC+: positive power supply (VCC)
2. DC-: negative power supply (GND)
3. IN1,2,3,4,5,6,7,8: can be high or low level control relay
S1,S2,S3,S4, S5,S6,S7,S8 HIGHT OR LOW LEVER
Relay outputs:
1. NO1,2,3,4,5,6,7,8: normally open relay interface
2. COM1,2,3,4,5,6,7,8: Common Interface Relays
3. NC1,2,3,4,5,6,7,8: normally closed relay interface
High and low level trigger options:
It is low level trigger when jumper connect to LOW pin
It is high level trigger when jumper connect to HIGH pin
Package:
1*12V 8CH relay module
4. ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
Feature
5V 8-Channel Relay interface board, each one needs 70mA Driver Current; Equiped with high-current relay, AC250V 10A ; DC30V 10AEach relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground.
With power indicator,8-way road has a status indicator. With a relay coil to absorb the diode protection.
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
The 8 channels are optically isolated, safe, reliable, anti-interference. Widely used for all MCU control, industrial sector, PLC control, smart home control
Description
Product Name : 8-Channel Relay Module;Output Channel : 8Power Supply : 5V;Load Voltage : AC 250V 10A,DC 30V 10A
Total Size : 137mm x 56mm x 17mm/ 5.4" x 2.2" x 0.7" (L*W*H);
Mounted Hole Size : 3mm/ 0.12"
Mounted Hole Center Distance : 132 x 50mm/5.2" x 2"(L*W);
Material : Electric Part
Weight : 122g;
Package Content : 1 x 8-Channel Relay Module
5. Bestgle 2Pcs 8 Channel Relay Module DC 5V with Optocoupler Relay Control Board for Arduino Raspberry Pi DSP AVR PIC ARM
Feature
2pcs 8 Channel relay module board, 8 input signals active low, working voltage: DC 5VHigh-current relay, relay output maximum contact: AC250V 10A; DC30V 10A
Equiped with Optocoupler isolation and status indicators, safe, reliable, strong compatibility, strong anti-interference
Standard interface, can be expanded on a variety of development boards such as Arduino, Raspberry pi ,51, AVR, PIC, ARM, PIC, etc
Supports all MCU control, industrial sector, PLC control, household intelligent control, can control various appliances, and other equipments with large current
Description
Bestgle 8 Channel Relay Module 5V with Optocoupler
- 8 Input signals(IN1, IN2, IN3, IN4, IN5, IN6, IN7, IN8) are active low. Relay output contact up to AC250V 10A and DC30V 10A.
- Each relay has normally open and normally closed contact.
- Standard interface can be directly connected with a variety of microcontrollers.
- Optocoupler isolation, safe and strong anti-interference, protect any delicate control circuitry.
- Come with status indicator. Indicator lights for relay output status are conducive to the safe use.
- 5V 8-Channel Relay interface board can control various appliances, and other equipments with large current. It also can be controlled directly by Microcontroller such as Arduino, Raspberry PI, 8051, AVR, PIC, DSP, ARM, MSP430, TTL logic.
- Support for all MCU control, industrial area, PLC control, home intelligent control.
-------------Specification---------------
Channels: 8 Opto-isolated for protection
Working voltage: DC 5V
Relay Output Maximum Contact: AC250V 10A; DC30V 10A
Input Signal: IN1, IN2, IN3, IN4, IN5, IN6, IN7, IN8
Power Input: VCC, GND
--------------Package Includes--------------
2 x 8-Channel 5V Relay Module
6. KNACRO 8-Channel 8-CH Relay Module DC 5V with Optocoupler isolation H/L high/low Level Triger for Arduino
Feature
This module Operating voltage 5VThis module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A
Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA
This module can be high or low by a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
Description
1. the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A;2. using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;
3. the module Operating voltage 5V;
4. the module can be high or low by a jumper setting trigger;
5. fault-tolerant design, even if the control line is broken, the relay will not operate;
6. the power indicator (green), the relay status indicator (red)
7. the interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient
8. module size: 73mm*50mm*17mm (L*W*H)
Module interface:
1. DC+: positive power supply (VCC)
2. DC-: negative power supply (GND)
3. IN1,2,3,4,5,6,7,8: can be high or low level control relay
S1,S2,S3,S4, S5,S6,S7,S8 HIGHT OR LOW LEVER
Relay outputs:
1. NO1,2,3,4,5,6,7,8: normally open relay interface
2. COM1,2,3,4,5,6,7,8: Common Interface Relays
3. NC1,2,3,4,5,6,7,8: normally closed relay interface
High and low level trigger options:
It is low level trigger when jumper connect to LOW pin
It is high level trigger when jumper connect to HIGH pin
Package:
1*5V 8CH relay module
7. Yakamoz 2Pcs DC 5V 8-Channel Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM
Feature
5V 8-Channel Relay interface board equiped with high-current relay, AC250V 10A, DC30V 10AIndication LED's for relay output status, with a relay coil to absorb the diode protection.
The 8 channels are optically isolated, safe, reliable, anti-interference.
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
ApplicationSupports all MCU control, The industrial field, PLC control, Smart home control
Description
Yakamoz 8-Channel Relay Module
Feature:
Can be used as microcontroller development board module can be used as home appliance control
5 V-12V to TTL control signal
The control signal DC or AC, 220V AC load can be controlled
There is a normally open and one normally closed contact
A power indicator light
A control indicator, pull off, disconnect does not shine
Transistor drive to increase the relay coil control pins high impedance
The control pin has a pull-down circuit to prevent malfunction relay vacant
Specifications:
Product Name: 8-Channel Relay Module
Output Channel: 8
Power Supply: 5V
Load Voltage: AC 250V 10A, DC 30V 10A
Total Size: 137mm x 56mm x 17mm/ 5.4" x 2.2" x 0.7" (L*W*H);
Mounted Hole Size: 3mm/ 0.12"
Mounted Hole Center Distance: 132 x 50mm/5.2" x 2"(L*W);
Material: Electric Part
Package Content :
1 x 8-Channel Relay Module
8. KEYESTUDIO Eight-Channel Solid State Relay for Arduino PIC AVR DSP ARM Relay Module Effective High-Level AC240V/2A Output
Feature
It is an effective high-level four-channel solid state relay, when the input control signal is 0-2.5V, the relay is OFF, and when 3.3-5V, it is ONChannels 1-8: Voltage DC 5V; Static Current 0mA; Trigger Voltage 3.3-5V; Trigger Current 2mA; Output port AC240V/2A
Solid State Relay is a new kind of contactless switching device which is composed of all solid state electronic components
NOTE: The output control terminal of it must be connected to the circuit, and the working current needs to be > 50mA, so that the solid state relay can be disconnected normally
Compared with the electromagnetic relay, its reliability is more higher, with the features of non-contact, long service life, fast and less outside interference
Description
Electrical parameters:Voltage Static Current Working Current Trigger Voltage Trigger Current
Channel 1 DC 5V 0mA 13.8mA 3.3-5V 2mA
Channel 2 DC 5V 0mA 26.8mA 3.3-5V 2mA
Channel 3 DC 5V 0mA 37mA 3.3-5V 2mA
Channel 4 DC 5V 0mA 48mA 3.3-5V 2mA
Channel 5 DC 5V 0mA 59mA 3.3-5V 2mA
Channel 6 DC 5V 0mA 70mA 3.3-5V 2mA
Channel 7 DC 5V 0mA 81mA 3.3-5V 2mA
Channel 8 DC 5V 0mA 90mA 3.3-5V 2mA
Output port AC240V/2A
Size: 21.6x22.5x9 inch
Video is provide for beginner
Sample Code
int BASE = 3 ; //The first relay I/O port
int NUM = 8 //Total number of relay
void setup()
{
for (int i = BASE; i < BASE + NUM; i ++)
{
pinMode(i, OUTPUT); //Set the digital I/O port to output
}
}
void loop()
{
for (int i = BASE; i < BASE + NUM; i ++)
{
digitalWrite(i, HIGH); //Set the digital I/O port outputs to "HIGH", that is, gradually open relay
delay(200); //delay
}
for (int i = BASE; i < BASE + NUM; i ++)
{
digitalWrite(i, LOW); //Set the digital I/O port outputs to "LOW", that is, gradually close relay
delay(200); //delay
}
}
Result
Wiring as the above image, after powered-on, eight-channel solid state relays are first connected and then broken successively,repeating alternately.
9. Electronics-Salon DIN Rail Mount AC/DC 24V control 8 SPDT 16Amp Pluggable Power Relay Module, G2R-1-E
Feature
OMRON G2R-1-E industrial power relays, switching current up to 16A at 250VAC (or 30VDC), and easy to replace pluggable relays.Support AC / DC control signals.
LED indicator for each relay channel , relay coil protection by means of a freewheeling diode.
High quality screw terminal block, FR-4 fiber glass PCB, dual copper layers.
Panel mount or DIN rail mount versions are available. Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail, and the carrier can be taken apart for panel mount use.
Description
Datasheet: https://images-na.ssl-images-amazon.com/images/I/B1Chf3U0b5S.pdf
Relay: OMRON G2R-1-E 24V
Channel: 8
Control Signal: Voltage AC 18V~30V , or DC 18V~40V. Current 20mA(at 24V)
Relay Switch Contact Rating: Resistive Load 250VAC/16A 30VDC/16A, Inductive Load: 250VAC/8A.
Omron G2R-1-E industrial power relays, switching current up to 16A at 250VAC (or 30VDC), and easy to replace pluggable relays.
Support AC / DC control signals.
LED indicator for each relay channel , relay coil protection by means of a freewheeling diode.
High quality screw terminal block, FR-4 fiber glass PCB, dual copper layers.
Panel mount or DIN rail mount versions are available. Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail, and the carrier can be taken apart for panel mount use.
10. Raspberry Pi A+/B+/2B/3B/3B+ 8-Channel Relay Expansion Board Loads up to 5A 250V AC or 5A 30V DC SPDT-NO NC Contact Form 6mA per Channel 5v Power
Feature
Expansion board with 8-ch relays for Raspberry Pi, gives your Pi the ability to control high voltage products such as home appliances; Contact form: SPDT-NO,NCSupports Raspberry Pi A+/B+/2B/3B/3B+, high quality relays, loads up to 5A 250V AC or 5A 30V DC;Power supply voltage: 5V;Trigger signal: 3.3V/5V;Closed current: 6mA (per channel)
Photo coupling isolation, prevent interference from high voltage circuit, standard rail mount bottom case, onboard LEDs for indicating relays status;Relay channels: 8-ch
Relay control pin selection jumper, allows to control the relays by custom pins other than the default pins, reserved control Interface, allows to work with controllers like PLC
Development resouces: www.waveshare.com/wiki/RPi_Relay_Board_(B)
Description
DescriptionThe RPi Relay Board (B) is an expansion board with 8-ch relays for Raspberry Pi. It gives your Pi the ability to control high voltage products such as home appliances.
Features
Supports Raspberry Pi A+/B+/2B/3B/3B+
High quality relays, loads up to 5A 250V AC or 5A 30V DC
Photo coupling isolation, prevent interference from high voltage circuit
Standard rail mount bottom case
Onboard LEDs for indicating relays status
Relay control pin selection jumper, allows to control the relays by custom pins other than the default pins
Reserved control Interface, allows to work with controllers like PLC
Comes with development resources, including examples in wiringPi, bcm2835, python, python-bottle (webpage control), and crontab (cron job)
Specifications
Power supply voltage: 5V
Trigger signal: 3.3V/5V
Relay channels: 8-ch
Contact form: SPDT-NO,NC
Closed current: 6mA (per channel)
Connector: screw terminal block
Dimension: 232 72 (mm)
Mounting hole size: 3.0mm
PACKAGE CONTENT
RPi Relay Board (B) x1
Rail mount bottom case x1
Screws pack x1
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