# 3 gang switch with 2 live source and zbmini L2 **URL:** \ **Category:** Ideas & Suggestion\ **Created:** [December 10, 2023, 2:26am UTC](https://forum.ewelink.cc/t/3-gang-switch-with-2-live-source-and-zbmini-l2/25563 "2023-12-10T02:26:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![halimhussein](https://avatars.discourse-cdn.com/v4/letter/h/f14d63/32.png) [@halimhussein](https://forum.ewelink.cc/u/halimhussein)\ **Post date:** [December 10, 2023, 2:26am UTC](https://forum.ewelink.cc/t/3-gang-switch-with-2-live-source-and-zbmini-l2/25563/1 "2023-12-10T02:26:54Z")
![IMG_20231210_094942](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/1/1e679a80a2072a02437293293252f4b7d39f8a90.jpeg) ![IMG_20231210_094956](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/8/8fccb6008f5250b25ccd6c635859e7372a86f62c.jpeg) i have 2 questions here. 1. how to power up zbmini? power up only without connecting to lamp. 2. my original manual 3 gang switchs come with 2 live source. my house is on 3 phase circuit. but sonoff 3gang switchs only have one L in and 3 Out. i cannot combine both live line as it will tripped my DB. So i am thinking to use zbmini to connect to one of sonoff 3 gang out line to power up zbmini. how ever it doesn’t work. so need help here. sorry about the wording might be a but confusing ![IMG_20231210_121601](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/1/170e53942ba2c30e675bc838347596b8acb40f3c.jpeg) ---
**Author:** ![halimhussein](https://avatars.discourse-cdn.com/v4/letter/h/f14d63/32.png) [@halimhussein](https://forum.ewelink.cc/u/halimhussein)\ **Post date:** [December 10, 2023, 11:21am UTC](https://forum.ewelink.cc/t/3-gang-switch-with-2-live-source-and-zbmini-l2/25563/3 "2023-12-10T11:21:41Z")
💡 you just give me an idea. i just use relay instead of zbmini. it just a switch anway. the 3gang switch, when activated, turn on the relay which act as switch to the other phase circuit. it can work isnt it?