# ‌Is it necessary to install an RCD circuit breaker at the input side of a Quattro?

**URL:** <https://community.victronenergy.com/t/is-it-necessary-to-install-an-rcd-circuit-breaker-at-the-input-side-of-a-quattro/38170>\
**Category:** DIY\
**Tags:** beginner, quattro\
**Created:** [3 July 2025 02:12 UTC](https://community.victronenergy.com/t/is-it-necessary-to-install-an-rcd-circuit-breaker-at-the-input-side-of-a-quattro/38170 "2025-07-03T02:12:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Yvo](https://avatars.discourse-cdn.com/v4/letter/y/ea666f/32.png) [@Yvo](https://community.victronenergy.com/u/Yvo)\
**Post date:** [3 July 2025 02:12 UTC](https://community.victronenergy.com/t/is-it-necessary-to-install-an-rcd-circuit-breaker-at-the-input-side-of-a-quattro/38170/1 "2025-07-03T02:12:49Z")

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‌Is it necessary to install an RCD circuit breaker at the input side of an Quattro? You will find that there is some residual current in the Quattro . This could trip the RCD breaker before the inverter.

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**Author:** ![UpCycleElectric](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/upcycleelectric/32/36895_2.png) [@UpCycleElectric](https://community.victronenergy.com/u/UpCycleElectric)\
**Post date:** [3 July 2025 02:32 UTC](https://community.victronenergy.com/t/is-it-necessary-to-install-an-rcd-circuit-breaker-at-the-input-side-of-a-quattro/38170/2 "2025-07-03T02:32:03Z")

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yes