8 Channel I2C Electromagnetic Relay Module Opto

Name: 8 Channel I2C Electromagnetic Relay Module Opto
SKU: 38875
Price: 20.95 USD
Availability: InStock

8 Channel I2C Electromagnetic Relay Module Opto Isolated PCF8574 3.3V 5.0V

Designed by KRIDA Electronics in Latvia

8 Channel I2C Electromagnetic Relay Module Opto 1

8 Channel I2C Electromagnetic Relay Module Opto 2

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8 Channel I2C Electromagnetic Relay Module Opto 15

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8 Channel I2C Electromagnetic Relay Module Opto Isolated PCF8574 3.3V 5.0V

8 Channel Opto Isolated Electromagnetic Relay Module with I2C Interface, PCF8574 compatible with Home Assistant / ESPHome DUAL Power support - 3.3V for logic side and 5.0V for relays Product …

8 Channel Opto Isolated Electromagnetic Relay Module with I2C Interface, PCF8574

compatible with Home Assistant / ESPHome
DUAL Power support - 3.3V for logic side and 5.0V for relays

Product description:

PCB board dimension 72mm x 150mm
Compatible with DIN rail plastic holder
Operation DC voltage – 3.3V and 5.0V
Maximum current @5.0V – 700mA
Maximum current per relay – 10A peak
LEDs indicators for each electromagnetic relay channel
Relays with SPDT switch contacts: Normally Open, Common, Normally Closed
Relay contact resistance 100 milliohms max. ( initial value )
Relay insulation resistance 100 MOhm min. (DC 500V)
Relay operation time 8 ms max
Relay release time 5ms max
Relay dielectric strength 750 VAC, 50/60Hz between contact
Relay dielectric strength 1,500 VAC, 50/60Hz between all elements
Relay expected life Mechanical - 10,000,000 operations min.
Relay expected life Electrical - 100,000 operations min. at rated load
Working temperature range - 25 C ~ + 80 C
Comes with different slave address 0x27 or 0x3F, depends on the batch
Each board can be assigned an I2C address between 0x20...0x27 (0x38...0x3F) by the DIP switch
The module contains an PCF8574 or PCF8574A chip
The SDA and SCL lines are pulled up to D.VCC with 5.6k resistors on the relay module.
Up to 8 boards can be connected to I2C bus line.

PIN description:

A.VCC - analog (relays) power supply
A.GND - analog (relays) ground
D.VCC - logic side (digital) power supply
D.GND - logic side (digital) ground
SDA - i2c serial data
SCL - i2c serial clock

Sample codes:

Arduino sample code for 0x27 slave address - https://drive.google.com/open?id=1bhoR4dusLg54g0WM_b_a0Efto5wGJ3SZ
Arduino sample code for 0x3F slave address - https://drive.google.com/open?id=14HXx25LMoYRrmThCqxxRv5AvvmoChJDV
Code for controlling each channel separately - https://drive.google.com/open?id=1xvJZBvRlOtW8DJ1urEnSKOScQ5fM5Zs1
Multiboards controlling code - https://drive.google.com/open?id=131HilQV8ZbCkEMC_oS3NJGbEQn-aUKaF
Home Assistant *yaml code - https://drive.google.com/file/d/1puJG7e_3uAKEAuQfctY5cBt5C62L2Q1I/view?usp=sharing

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