Please note: Raspberry Pi is not included
Overview
The 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 /4B
 - 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
 
Dimensions
What's in the box?
1 x RPi Relay Board (B) 
1 x Rail mount bottom case 
1 x Screws pack 
Resources