Knight Fire & Security MX004 resettable element, White

Who this is for

For the installer — this is the pack of 10 resettable elements supplied under Knight Fire & Security part number MX004. Specify it by that part number.

In plain English: this is a pack of 10 resettable elements made by Knight Fire & Security. The part number MX004 is the manufacturer's own code for this exact version of it.

Similar-looking items in the same family often differ only by a suffix on that code. If you are replacing something, match the code rather than the picture.

Buying this in the UK

We are a UK supplier and this pack of 10 resettable elements is sold and shipped from the UK. Prices are shown in pounds sterling.

This item is returnable under our standard returns terms. Faulty goods are handled separately and are never affected by a returns restriction.

We do not quote a warranty term for this part.

Ask us and we will check it for you. Your statutory rights are unaffected.

Stock on this line moves, and lead times move with it. Ask us for the current position before you commit to a date on site.

Questions we get asked

Is this the exact pack of 10 resettable elements I have been quoted? Check the manufacturer part number MX004 against your quote. That code is the only reliable identity for this item.

Is there a datasheet? Yes — the documentation attached to this listing was checked and names this exact part number. Documents that named only the family, or a different item, are not attached.

Can you check compatibility for us? Ask before you order and we will check it against the manufacturer's own documentation.

What if I order the wrong version? Tell us the installation you are matching and we will work back to the part number with you. That is a faster conversation than a return.