Replacement for Wylex NSB 40 Type 2 ?

ianphilip007 · Apr 11, 2017

hi need to replace a Wylex NSB 40 Type 2 (BS3871) (it has the orange dollie)

will a Wylex NHXb be a straight swap ?

ianphilip007 · Apr 11, 2017

Wylex state the nhx range is a direct replacement for the NSB range just wondered with it being the older type 2, they look identical in size.

Dave the spark · Apr 11, 2017

Certainly the NHX is fine for the 60898, if they look the same size it should be ok

ianphilip007 · Apr 11, 2017

the busbar is forward, not to the rear, mcb slots in. they look nearly identical so i guess they should fit.

Ian1981 · Apr 11, 2017

I would ring electrium who produce wylex and seek manufacturer guidance before you replace a 3871 with a 60898

westward10 · Apr 11, 2017

It will fit as they are compatible, makes no difference whether it is 60898 or 3871. The attached picture shows both types.

[ElectriciansForums.net] Replacement for Wylex NSB 40 Type 2 ?

Ian1981 · Apr 11, 2017

Yep they look identical
I'd still enquire, just my preference

westward10 · Apr 11, 2017

They are, their characteristics make no difference so long as they are compatible with the enclosure.

ianphilip007 · Apr 11, 2017

that pic clears it up, thanks westward 10. The NSB type 2 appears identical to the NSB BSEN60898 in dimensions. The NHXB should fit perfectly as that, according to wylex is the direct replacement for the old NSB range. The circuit in question meets the criteria for a type b MCB and the breaking capacity is 6kA for both existing (Wylex NSB Type 2) and the replacement (NHXB Type B)