--- title: MC100PRO-S1P - Combiner Box description: Requirements and instructions to install a MC100PRO-S1P Combiner Box for 1 phase systems, with whole home / partial backup --- [Skip to content](https://support.atmoce-au.com/knowledge-base/mc1#main-content) English - United Kingdom Show submenu for translations [![ATMOCE 2025 Black Logo](https://support.atmoce-au.com/hs-fs/hubfs/ATMOCE%202025%20Black%20Logo.png?width=200&height=200&name=ATMOCE%202025%20Black%20Logo.png)](https://www.atmoce.com/au) - [Home](https://support.atmoce-au.com/knowledge-base) - [Atmoce Website](https://www.atmoce.com/au) Open main navigation Close main navigation - [Home](https://support.atmoce-au.com/knowledge-base) - [Atmoce Website](https://www.atmoce.com/au) - English - United Kingdom Show submenu for translations - [Customer Portal](https://support.atmoce-au.com/tickets-view) [Customer Portal](https://support.atmoce-au.com/tickets-view?hsLang=en-gb) How can we help you? - There are no suggestions because the search field is empty. 1. 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[Combiner Box](https://support.atmoce-au.com/knowledge-base/installation?hsLang=en-gb#combiner-box) 17 September 2026 # MC100PRO-S1P - Combiner Box ## Instructions to install a MC100PRO-S1P Combiner Box for 1 phase systems, with whole home / partial backup ### Contents #### [Minimum Installation Clearances](https://support.atmoce-au.com/knowledge-base/mc1#clearance) #### [Mounting](https://support.atmoce-au.com/knowledge-base/mc1#mount) #### [Wiring SLD](https://support.atmoce-au.com/knowledge-base/mc1#wiring) #### [Cable sizing](https://support.atmoce-au.com/knowledge-base/mc1#cable) #### [3rd Party PV Connection](https://support.atmoce-au.com/knowledge-base/mc1#third) #### [Battery AC & CAN Connection](https://support.atmoce-au.com/knowledge-base/mc1#batt) #### [Grid Connection](https://support.atmoce-au.com/knowledge-base/mc1#grid) #### [Backup Load Connection](https://support.atmoce-au.com/knowledge-base/mc1#backup) #### [Non-Backup Load Connection](https://support.atmoce-au.com/knowledge-base/mc1#nonbackup) #### [Other Connections](https://support.atmoce-au.com/knowledge-base/mc1#other) --- ### Minimum Installation Clearances The Combiner Box requires a clearance of at least **1000 mm** vertically from the floor. --- ### Mounting 1. Drill holes at the wall mounting positions indicated on the marking plate. 2. Insert wall anchors into the holes and insert the M8 screw into the top hole (loosely tightened). 3. Hang the top mounting tab on the screw and then insert the M8 screw into the bottom hole. 4. Tighten the M8 screws to 9–14 Nm. ![combiner\_clearance](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_clearance.webp?width=670&height=253&name=combiner_clearance.webp) --- ### Wiring SLD ![combiner\_image](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_image.webp?width=670&height=575&name=combiner_image.webp)TheMC100PRO-S1P Combiner Box comes with the gateway, backup unit, circuit breakers, and CTs pre-assembled to reduce complexity and overall installation time. Please note that the below diagrams may differ from the Combiner Box onsite due version changes. --- ### Cable sizing ![combiner\_cable sizing](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_cable%20sizing.webp?width=590&height=212&name=combiner_cable%20sizing.webp) The recommended cable sizing for all relevant components is displayed in the table above. --- ### 3rd Party PV Connection ![combiner\_3rd](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_3rd.webp?width=670&height=571&name=combiner_3rd.webp) 1. Connect the 3rd party PV AC cable to the PV1 breaker. Additional PV sources such as Atmoce microinverters can be connected to the PV2 breaker. --- ### Battery AC & CAN Connection ![combiner\_batt](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_batt.webp?width=670&height=537&name=combiner_batt.webp) ![](https://support.atmoce-au.com/hs-fs/hubfs/image-png-Sep-10-2026-07-01-53-0039-AM.png?width=200&height=53&name=image-png-Sep-10-2026-07-01-53-0039-AM.png) 1. Connect the battery AC cables to the Battery breaker, 2. Connect the CAN communication cable to communication terminal. Always refer to the printed CAN communication labelling on the Combiner Box for accurate terminal locations. --- ### Grid Connection ### ![combiner\_grid](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_grid.webp?width=670&height=532&name=combiner_grid.webp) 1. Connect the AC cable from the grid to the Grid breaker. --- ### Backup Load Connection![combiner\_backup](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_backup.webp?width=670&height=573&name=combiner_backup.webp) 1. Connect the AC cable from the backup loads to the Backup breaker. --- ### Non-Backup Load Connection ![combiner\_nonbackup](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_nonbackup.webp?width=670&height=836&name=combiner_nonbackup.webp) 1. For any non-backup loads, connect the AC cable to the Non-backup terminal. --- ### Other Connections ![combiner\_other connections](https://support.atmoce-au.com/hs-fs/hubfs/AU%20KB%20Database%20-%20Do%20not%20delete/combiner_other%20connections.webp?width=670&height=699&name=combiner_other%20connections.webp)The Combiner Box supports other connections as required.   --- *Information in this article was current at the time of publication or last update. Product specifications, software, firmware and procedures may change. Please refer to the latest ATMOCE documentation before proceeding.* - [Installation](https://support.atmoce-au.com/knowledge-base/installation?hsLang=en-gb#main-content) - [Battery](https://support.atmoce-au.com/knowledge-base/installation?hsLang=en-gb#battery) - [Gateway](https://support.atmoce-au.com/knowledge-base/installation?hsLang=en-gb#gateway) - [Other devices](https://support.atmoce-au.com/knowledge-base/installation?hsLang=en-gb#other-devices) - [Combiner Box](https://support.atmoce-au.com/knowledge-base/installation?hsLang=en-gb#combiner-box) - [Commissioning](https://support.atmoce-au.com/knowledge-base/commissioning?hsLang=en-gb#main-content) - [Atmozen Commissioning](https://support.atmoce-au.com/knowledge-base/commissioning?hsLang=en-gb#atmozen-commissioning) - [Adding Smart Device](https://support.atmoce-au.com/knowledge-base/commissioning?hsLang=en-gb#adding-smart-device) - [Site Configuration](https://support.atmoce-au.com/knowledge-base/site-configuration?hsLang=en-gb) - [Troubleshooting](https://support.atmoce-au.com/knowledge-base/troubleshooting?hsLang=en-gb#main-content) - [Battery](https://support.atmoce-au.com/knowledge-base/troubleshooting?hsLang=en-gb#battery) - [Backup](https://support.atmoce-au.com/knowledge-base/troubleshooting?hsLang=en-gb#backup) - [Service & Warranty](https://support.atmoce-au.com/knowledge-base/service-warranty?hsLang=en-gb#main-content) - [Device Replacement](https://support.atmoce-au.com/knowledge-base/service-warranty?hsLang=en-gb#device-replacement) - [FAQs](https://support.atmoce-au.com/knowledge-base/faqs?hsLang=en-gb#main-content) - [Customer FAQs](https://support.atmoce-au.com/knowledge-base/faqs?hsLang=en-gb#customer-faqs) - [Installer FAQs](https://support.atmoce-au.com/knowledge-base/faqs?hsLang=en-gb#installer-faqs) [![ATMOCE 2025 Black Logo](https://support.atmoce-au.com/hs-fs/hubfs/ATMOCE%202025%20Black%20Logo.png?width=150&height=150&name=ATMOCE%202025%20Black%20Logo.png "ATMOCE 2025 Black Logo")](https://www.atmoce.com/au) [mailto:email@email.com](mailto:email@email.com) Copyright © 2026, ATMOCE Australia Pty Ltd