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1pc 12V One Channel Relay Module Optocoupler Isolation High & Low Level Trigger
1pc 12V One Channel Relay Module Optocoupler Isolation High & Low Level Trigger
1pc 12V One Channel Relay Module Optocoupler Isolation High & Low Level Trigger
1pc 12V One Channel Relay Module Optocoupler Isolation High & Low Level Trigger

1pc 12V One Channel Relay Module Optocoupler Isolation High & Low Level Trigger

$ 3.32

Availability: 28 in stock
  • UPC: 785380192742
  • Brand: Unbranded
  • Country/Region of Manufacture: China
  • Condition: New

    Description

    1pc 12V One Channel Relay Module Optocoupler Isolation High & Low Level Trigger
    Module description:
    Module Size: 50mm * 26mm * 18.5mm (L * W * H)
    With four fixed bolt holes, holes 3.1mm, spacing 44.5mm * 20.5mm
    Power Indicator (green), Relay Status Indicator (red)
    Interface:
    Input:
    VCC: Relay power supply +
    GND: Relay power supply -
    IN: Signal trigger input (High or Low Level Signal, select via jumper)
    Output:
    NO: Relay normally open.
    COM: Relay Common Pin
    NC: Relay normally closed.
    Package：
    1*12V 1 Channel Relay Module With Optocoupler Isolation
    How to provide an auto shut-down for Prusa i3 Mk2S?
    1. Wired it in parallel with the power switch.
    2. Use the hotend fan power as the trigger.
    3. When you run a long print ,start the printer and when the hotend fan turns on (at about 50C) you can turn off the power switch.
    4.The printer continues to run until the print is finished and the hotend cools below 50C. At that point the relay is no longer powered and the printer shuts itself off.