https://community.element14.com/technologies/power-management/w/documents/10379/using-solid-state-relays-in-parallel-and-or-seriesen-USTelligent Community 12https://community.element14.com/technologies/power-management/w/documents/10379/using-solid-state-relays-in-parallel-and-or-seriesFri, 08 Oct 2021 05:11:37 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:3ad36c0d-44e3-4ffa-9bf0-980ab932f522dsohalhttps://community.element14.com/technologies/power-management/w/documents/10379/using-solid-state-relays-in-parallel-and-or-series#commentsCurrent Revision posted to Documents by dsohal on 10/8/2021 5:11:37 AM<br /> <p style="margin:0;"><span style="font-size:14pt;">When can I use DC SSRs in series</span></p><p style="margin:0;"><span style="font-size:14pt;">or parallel?</span></p><p style="margin:0;"><span style="font-size:14pt;">DC relays using bipolar transistors,</span></p><p style="margin:0;"><span style="font-size:14pt;">usually in the lower voltage and current</span></p><p style="margin:0;"><span style="font-size:14pt;">range, should not be paralleled as they</span></p><p style="margin:0;"><span style="font-size:14pt;">do not share current. If a higher voltage</span></p><p style="margin:0;"><span style="font-size:14pt;">is required it is advisable to use the</span></p><p style="margin:0;"><span style="font-size:14pt;">MOSFET based DC relays which have a</span></p><p style="margin:0;"><span style="font-size:14pt;">wider voltage range. Crydom offers</span></p><p style="margin:0;"><span style="font-size:14pt;">such a series with voltage ranges of up</span></p><p style="margin:0;"><span style="font-size:14pt;">to 500VDC</span></p><p style="margin:0;"><span style="font-size:14pt;">The situation with DC relays that use</span></p><p style="margin:0;"><span style="font-size:14pt;">MOSFET switching in the output is</span></p><p style="margin:0;"><span style="font-size:14pt;">rather different, here both series and</span></p><p style="margin:0;"><span style="font-size:14pt;">parallel connections are possible to</span></p><p style="margin:0;"><span style="font-size:14pt;">achieve the following goals.</span></p><p style="margin:0;"><span style="font-size:14pt;">For full details, please see attached file.<br /></span></p> <div class="migration-injected-attachments"><div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div><div></div><table style="border:0;"><tbody><tr><td width="160"><span class="_se_attachment" id="attid_https://www.element14.com/community/api/core/v3/attachments/101940"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-03/Farnell-Sep-2012-_2D00_-Crydom-Solid-Statements.pdf">community.element14.com/.../Farnell-Sep-2012-_2D00_-Crydom-Solid-Statements.pdf</a></span></td><td><span style="font-size:80%;">Farnell Sep 2012 - Crydom Solid Statements.pdf</span></td></tr></tbody></table></div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: in, series., relays, solid, and/or, state, parallel, using</div>