Charger lockout and vehicle lockout are different jobs
A charger installer's lockout kit is a set of miniature circuit breaker locks, hasps and isolator covers. It locks off the supply to a wallbox while the electrician is wiring it, and it is good at that. None of it touches the car.
On a vehicle the energy source is inside the car and cannot be switched off at a board. Isolation means removing the service plug or operating the disconnect, and the lockout job is to stop the car being re-energised while the work goes on: the plug being refitted, the car waking because a key came near it, or somebody plugging it in to charge.
The two get mixed up online because both carry the letters EV and retailers list installer kits under the broader term. If a listing shows breaker locks and no MSD device, it is the wrong kit for a workshop.
What a vehicle lockout kit should contain
- An MSD or service plug lockout. Holds the removed disconnect, or covers the socket it came out of, so nobody can refit it. Disconnects vary by platform, so check the device suits the shapes you see in your bays.
- A charge port lock. A car on charge is being energised from outside. The lock blocks the inlet so nobody plugs it in, including the customer who turns up early.
- A steering wheel lock or cover. A visible sign to anyone walking in that the car is not to be started or moved.
- A Faraday pouch for the keys. A keyless car wakes when its key is in range, and HSE guidance for motor vehicle repair expects keys to be locked away. The pouch blocks the signal from a key that is still in somebody's pocket across the workshop. Keys go in the pouch, the pouch goes in the locked station.
- One padlock per technician, keyed differently, with a tag that names them. The person who applied the lock is the only person who can remove it.
- Somewhere the disconnect lives while it is out. A lockable box or a station on the wall. The top of a toolbox does not count.
One padlock, one key, one person
Lockout works because the person at risk controls the isolation. A shared padlock, or a set of padlocks keyed alike because it was cheaper, breaks that. It means anyone in the building can re-energise a car that someone else has their hands inside.
Two technicians on the same car means two padlocks on a hasp. The car stays isolated until the last lock comes off.
The tag names the person, the date and the job. A tag that only says "do not remove" tells nobody who to find at 5pm when the car has to be moved, and that is how padlocks get cut off.
What a lockout station adds over a bag of parts
A bag of parts works on day one. A station is what makes it work on day two hundred: a wall panel or board with a hook or slot for every item, so a missing padlock is visible from across the workshop and the MSD, the keys and the pouch have a locked home instead of a bench.
It is also the thing an insurer or a HEVRA auditor sees. A station on the wall beside the signed bay shows the procedure exists before anyone asks for the paperwork.
On price, an MSD lockout device on its own is about £20 to £25 ex VAT and a branded lockout station lists at roughly £100 to £135 ex VAT. Against the cost of the padlocks and the rest of the contents, the station is a small step up.
The mistakes that keep coming up
Buying the installer kit and finding out on the first EV that nothing in it fits.
Padlocks keyed alike. The point of a lock is that one key opens it.
Keys in a drawer rather than a pouch, so the car wakes while the pack is open.
The disconnect left on the bench, where somebody refits it to "test something" while a colleague is still under the car.
No charge port lock, and the car is found on charge the next morning because a customer or a colleague was being helpful.
Kit bought and never written into the safe system of work, so it gets used only when somebody remembers.