32a three phase isolator neutral bar?

[BiddeldyBwah]

Came across one of these today at work. Had L1 L2 L3 and switched Neutral, but also had an N link bar inside.

Just wondering what it's for?

 

[BiddeldyBwah]

Even magnified it doesn't appear to have a marking on the 4th contact, jut the arrow in the plastic case.
From the style (plastic screws) it looks to be a Europa, which also appears very similar to older Klockner style disconnectors.
There's space on the left side for another contact so it may be that the 4th contact is auxiliary and could have a 5th.The 4th contact will have details on the side.

32A 4 Pole Surface Mount Isolator IP65 - https://www.yesss.co.uk/32a-4pole-surface-mount-isolator-ip65 It's one of those. We're basically using them as an emergency stop.

 

[westward10]

No it's just bare. The guys i am working with said it was the N though. Incidentally we were hooking up machines with no neutral anyway.

It's an 'Eris Industrial' 32a/20a from Yesss.

Strictly speaking the neutral is the separate terminal on the enclosure. The fourth switch terminal I would consider an auxiliary as it is not marked for a specific purpose and can be used for several things.

 

[BiddeldyBwah]

Strictly speaking the neutral is the separate terminal on the enclosure. The fourth switch terminal I would consider an auxiliary as it is not marked for a specific purpose and can be used for several things.

Is there any advantage/disadvantage to the way we've done it? The machinery we're hooking up doesn't use neutral so it's not used anyway.

 

[snowhead]

From the link above it's shows switched neutral