Installing EVSE with a Shunt Trip.

Not sure what you have in mind. I've seen shunt tips in a few odd places - most recently on camp site electric hookups where they were used as an alternative to interlocked sockets - there must have been a microswitch or similar on the socket as pulling the plug tripped the shunt release so the MCB/RCBO had to be reset manually after the plug had been re-inserted.

Having to manually reset a protective device is a bit tedious in general though, and it's hard to think of a situation where that would be preferred over letting the charge point itself do the switching. Maybe if some system detected some 'abstraction' through the charge point and wanted a hard shut-off. Open-pen detection and the like would need to open PE as well, so tripping normal protective devices wouldn't be the way to go.

  - Andy.

AJJewsbury 

EVSE with welded contact external shunt protection.

Does anyone make a bare bones EVSE where the contactor part is external ? Not aware of one,  but you never know.

Shunt trips can be fun anyway, but the complementary device the shunt trip resetter does not yet exist in a sensible DIN rail form.

Mike

UK made EVSE with an external shunt trip terminal.

cdn.simpson-partners.com/.../Installation-manual.pdf

cdn.simpson-partners.com/.../Installation-manual.pdf

not reassured with  company whose formal literature includes the word Saftey notice

It sounds like a nice idea but also seems an odd thing to offer, and I  wonder if their own tests resulted in  a lot of welded contacts and a bigger contactor might have been better ... (and how they detect a stuck contact condition)

Mike

I presume the shunt trips when the supply to it is made live, rather than the supply to it being permanently live and it operating as a No-Volt release if the supply is removed?

I’ve probably answered my own question, this is the under voltage trip

www.fastlec.co.uk/.../hager-under-voltage-release-230v-ac

Competitors are building welded contact detection into their EVSE without the requirement for an external shunt.

https://youtu.be/gwmiGf6tChE