> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/cg1018-relay-box-installation-manual/installation/hardware-configuration/nc-and-no-isolated-switch-modes/isolated-switch-mode-parameters.md).

# Isolated Switch mode parameters

The parameters of the Isolated Switch mode in the table below are given per channel.

<table><thead><tr><th width="278">Parameter</th><th width="113">Value</th><th>Comment</th></tr></thead><tbody><tr><td>Max DC switching voltage</td><td>24V DC</td><td></td></tr><tr><td>Max AC switching voltage</td><td>120V AC </td><td></td></tr><tr><td>Max switching current</td><td>1A</td><td></td></tr><tr><td>Max DC switching power</td><td>24W</td><td></td></tr><tr><td>Max AC switching power </td><td>120VA</td><td></td></tr><tr><td>Protection</td><td>2A hold current 3.5A trip current</td><td>The relay switch is protected with PolySwitch® Resettable PPTC.</td></tr></tbody></table>


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