# Can the IDT-E2RH +12VDC output be used to switch SSR-40DA?

**URL:** <https://community.inkbird.com/t/can-the-idt-e2rh-12vdc-output-be-used-to-switch-ssr-40da/29740>\
**Category:** Questions & Answers\
**Created:** [March 6, 2023, 11:18pm UTC](https://community.inkbird.com/t/can-the-idt-e2rh-12vdc-output-be-used-to-switch-ssr-40da/29740 "2023-03-06T23:18:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![inewton888](https://avatars.discourse-cdn.com/v4/letter/i/94ad74/32.png) [@inewton888](https://community.inkbird.com/u/inewton888)\
**Post date:** [March 6, 2023, 11:18pm UTC](https://community.inkbird.com/t/can-the-idt-e2rh-12vdc-output-be-used-to-switch-ssr-40da/29740/1 "2023-03-06T23:18:14Z")

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I like to use the +12VDC from E2RH (terminal 4 and 5) to switch 3 solid state relays (SSR-40DA) connected to E2RH Timer A relay (terminal 7 and 8). The SSR relays will send 120VAC output to heaters when switched. Each relay draws about 7mA for switching. Is this possible and do you have a wiring diagram?