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Author Topic: Is there a difference between these two Solid State Relays?  (Read 1513 times)

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Offline dog80Topic starter

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Is there a difference between these two Solid State Relays?
« on: November 06, 2013, 10:17:17 am »
Original relay: http://www.celduc-relais.com/all/pdfcelduc/scfl42100.pdf

Possible replacement: https://www.relayspec.com/specs/005510/WG_280_D.pdf

These two look similar, but the original has an extra pin that is supposed to be connected to the neutral. What is the purpose of that pin? Can the other SSR be used in place of the original?

EDIT: Fixed link
« Last Edit: November 06, 2013, 11:52:12 am by dog80 »
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Offline Rerouter

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Re: Is there a difference between these two Solid State Relays?
« Reply #1 on: November 06, 2013, 11:31:49 am »
the original is a zero crossing style one, I'm going to assume it only switches when active = neutral, where the other one is essentially just a switch,
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Offline dog80Topic starter

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Re: Is there a difference between these two Solid State Relays?
« Reply #2 on: November 06, 2013, 11:53:11 am »
I fixed the link for the second relay. It is too a zero crossing type but it doesn't have the Neutral connection
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