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Insulated screwdriver for a consumer unit

Updated: October 2026

An insulated screwdriver for a consumer unit can turn a screw on a board that has already been proved dead. It does not prove the board is dead, it does not show you a newton-metre, and it does not certify the work. Replacing the unit is a different job from tightening one accessory screw. The twelve listings are on the [VDE screwdriver comparison](/hub/hand-tools/vde-screwdriver). Isolation is on [how to use a VDE screwdriver](/hub/hand-tools/vde-screwdriver/sub/vde-screwdriver-how-to-use). Faceplate geometry is on [Pozidriv versus Phillips](/hub/hand-tools/vde-screwdriver/sub/vde-screwdriver-pozidriv-vs-phillips). Products Compared checked these listings on 16 October 2026, alongside public UK guidance. There is no laboratory test. If you buy through our links, a qualifying purchase can earn a commission at no extra cost to you.

An insulated screwdriver for a consumer unit can turn a screw on a board that has already been proved dead. It does not prove the board is dead, it does not show you a newton-metre, and it does not certify the work.

Our top picks

Wera Wera 7-piece slim Kraftform set

Best overall

Wera Wera 7-piece slim Kraftform set
7.9/10about £41.80
View offer
Wera Wera 6-piece Phillips and slotted

Rank 2

Wera Wera 6-piece Phillips and slotted
8.9/10about £26.98
View offer
ArmaKit ArmaKit AKVDE-7 7-piece set

Preis-Tipp

ArmaKit ArmaKit AKVDE-7 7-piece set
8.1/10about £9.95
View offer
On this page
  1. 1.The driver is not the qualification
  2. 2.Terminals are not the same as faceplate screws
  3. 3.Tight is not a number
  4. 4.What stays out of bounds

The driver is not the qualification

In England, notifiable electrical work in a dwelling is certified through a registered competent person, a third party, or building control. Replacing a consumer unit is new work. Part P is the English label. Scotland and Northern Ireland have their own building rules. A VDE mark on a handle is not one of those routes. Regulation 14 still requires that it is unreasonable for the conductor to be dead. Insulated tools do not by themselves make live work lawful. If the task is to replace the consumer unit, book a registered electrician.

Terminals are not the same as faceplate screws

A socket faceplate is often Pozidriv or slotted. Breaker, RCD, and RCBO terminals are often a combined slot and cross, sold as plus-minus or modulo, not a plain PZ2. A plain Pozidriv tip or a plain flat can damage the head. CK's warning is that a small driver on a large combi screw loads the ends of the slot until they break. None of the twelve specification tables prints a modulo or PZ/S size. The only inventory of those tips is one review of the slim Wera, and a review is not the specification. That slim set is the only reduced-diameter set here. Reach is all the slim shaft adds. It does not add a torque scale, and it does not confirm the tip.
Wera Wera 7-piece slim Kraftform set

Testsieger

Wera Wera 7-piece slim Kraftform set
7.9/10about £41.80
View offer

Tight is not a number

Loose terminals heat, and crushed conductors fail. The IET's consumer-unit FAQ points at BS 7671 regulations 526.1 and 134.1.1, and it treats the manufacturer's torque as part of the instructions. Where a torque is specified, a torque screwdriver is one way to confirm it. The IET page does not publish one newton-metre for every British board, so this page will not invent one. None of the twelve is a torque screwdriver. A plain insulated driver can turn the screw. It cannot tell you that you stopped at the stated figure. If the instructions state a torque and you cannot show it, stop. Do not borrow a number from another brand's board.

What stays out of bounds

The cut-out, the meter, and the service head are the distributor's equipment. Seals on that equipment keep the supply side with people who are allowed to break them. An amazon.co.uk listing does not transfer that permission. Stop if you cannot prove the board dead with a two-pole tester, checked before and after, or if the sleeve is cut. A shock ends the attempt. The best VDE screwdriver page can say which of these twelve reaches a recessed screw and which lists Pozidriv for a faceplate. It cannot say that you are the person who should change the board.

Common questions

Will a VDE set let me replace a consumer unit?
No. In England that work is certified by a registered competent person, a third party, or building control. Scotland and Northern Ireland run their own building rules. A 1,000 V mark is an insulation claim, not registration, and it does not make live work on the board lawful under regulation 14.
Do I still isolate if the drivers are insulated?
Yes. Insulation is one precaution after the circuit has been proved dead. It does not replace isolation and a two-pole test, including proving the tester before and after. A neon screwdriver in the case does not clear a board.
What tip fits MCB and RCBO screws?
Often a plus-minus or modulo tip, a combined slot and cross, rather than the PZ2 used on a faceplate. CK sizes a modulo driver for RCD and RCBO screws, and a small driver in a large combi screw can break the slot ends. None of these twelve prints that tip in the specification. One review of the slim Wera mentions PZ/S sizes. That is not the listing confirming them.
Why are people talking about newton-metres?
A loose terminal heats, and an over-tightened one can crush the conductor. The IET treats the manufacturer's torque as part of the instructions. There is no single newton-metre for every UK board on that page. Use the figure for the device in front of you, or do not guess it.
Is any set in this comparison a torque driver?
No. All twelve are plain drivers, bits, or a pliers kit. The slim Wera is the only reduced-diameter set. It helps you reach a recessed screw and it does not display a torque. If the instructions state a newton-metre, you need a torque screwdriver this category does not contain. Feeling tight is not that measurement.
What must I not touch?
Do not open the meter, the cut-out, or the service head. That is the distributor's equipment, and a VDE set does not authorise you to break seals or work on the supply side. Also stop if the board has not been proved dead, if the sleeve is damaged, or if you have had a shock. Those are electrician jobs.

Related pages

VDE screwdrivers 2026

Best VDE screwdriver: faceplate, reach or first set

VDE screwdriver buying guide: marks, tips and tester

How to use a VDE screwdriver: prove the circuit dead

Pozidriv vs Phillips screwdriver on a UK faceplate

Sources

Public UK sources and the amazon.co.uk listings in this comparison. Listings captured 15 October 2026. Page updated October 2026.

  1. Electricity at Work Regulations 1989, regulation 14 (retrieved 15 October 2026)
  2. HSE HSG85 (retrieved 15 October 2026)
  3. HSE GS38 (retrieved 15 October 2026)
  4. BSI, BS EN IEC 60900:2018 (retrieved 15 October 2026)
  5. Professional Electrician on insulated tools (retrieved 15 October 2026)
  6. GOV.UK competent person schemes (retrieved 15 October 2026)
  7. IET consumer-unit FAQ (retrieved 15 October 2026)
  8. BAuA GS mark FAQ (retrieved 15 October 2026)