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Old 13th Jul 2018, 11:30 pm   #1
Sparky67
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Default Latching Switch ID

Hi all,

Can anyone ID the switch in the attached photos for me please, and/or suggest where a replacement could be obtained?

It is a latching mains switch used in a Weir PSU.

Many thanks,

Martin
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Old 14th Jul 2018, 7:46 am   #2
Diabolical Artificer
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Default Re: Latching Switch ID

Is that the power off/on sw? Double pole single throw? I've a few switches of that type but nothing like that.

Andy.
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Old 14th Jul 2018, 8:35 am   #3
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Default Re: Latching Switch ID

You might find a TV on/off switch that will fit. With that strong spring inside it suggests a strong snap action and relatively high current capability.
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Old 14th Jul 2018, 11:42 pm   #4
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Default Re: Latching Switch ID

Yes, it's a DPDT switch used for mains on/off, on a 30V 2A variable bench PSU Andy. And yes, it does have quite a positive action vidjoman. I *could* replace it with a toggle, but would much prefer to keep it original if possible...
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Old 17th Jul 2018, 1:13 am   #5
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Default Re: Latching Switch ID

Update on this... It turned out that one end of the small spring visible in the second photo above had come adrift from its hole in the internal moving arm and as the tension was off the arm the contacts weren't making. After 20 minutes trying various tools I somehow managed to get the end back in and the switch now works as it should.

Mods - this thread can be closed. Thanks.
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Old 17th Jul 2018, 7:43 am   #6
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Default Re: Latching Switch ID

Good to hear you sorted it.

A.
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