Three 40A/240V Relays RS485 Daisy-chainable HAT for Raspberry Pi

The Three 40A/240V Relays RS485 Daisy-channable HAT is designed for use with the Raspberry Pi. It features three heavy-duty relays that can handle up to 40A and 240V each, suitable for controlling three-phase industrial loads. The card can be daisy-chained up to 32 units through an RS485 port and is equipped with pluggable connectors, an on-board processor, and LED indicators It's compatible with all Raspberry Pi versions from Zero to 5. The card requires a 12V power supply and includes reverse power supply protection, a reset push-button, DIN-Rail mounting brackets and screws. It also supports software self-test and comes with all necessary mounting hardware. Features

* Three 40A/240V Relays RS485 Daisy-chainable HAT for Raspberry Pi

* Pluggable Connectors, 26-16 AWG wires for 12V power and RS485

* Daisy-chainable to 32 cards through RS485 port

* On-board processor

* Each relay can switch up to 40A and 240V

* Heavy duty, 40A/750V terminal block for output contacts

* RS485/MODBUS Port with TVS protection and dual connectors

* Reverse polarity power supply protection

* General purpose push-button

* LED indicators on each relay

* All mounting hardware included: stand-offs, screws and nuts

* DIN-Rail mounting clips included

* On-board resettable fuse

* Software self-test

* Three Relays for Raspberry Pi

Specifications

* Power Supply: 12V/8A pluggable connector with reverse polarity protection

* Contact Configuration: SPST-NO

* Contact Rating: 40A/277 VAC inductive load, 40A/VAC resistive load, 40A/30DC

* On/off time: 20ms max each

* Maximum Operating Frequency:

* Electrical Endurance: 600 cycles/hour, full load

* Mechanical Endurance: 18,000 cycles/hour, no load

* Electrical Life: 50,000 operations minim at 40A 277VAC

* Mechanical Life: 10,000,000 operations minimum, no load

Resources

* User's Guide

* Open Source Hardware Schematic

* 2D CAD Drawing

* 3D STEP Model

* Command Line

* Python Library

* Node-RED nodes

* Relays Datasheet

* RoHS and REACH Compliance Declaration

Package Contents

* 1x 40A/240V RS485 add-on HAT for Raspberry Pi

* Mounting hardware

* 4x M2.5x18mm male-female brass standoffs

* 4x M2.5x5mm brass screws

* 4x M2.5 brass nuts

* Connector Plugs

* DIN-Rail mounting brackets and screws