MSB-A breaker settings

Everything saves as you go, against your name. Nothing to send. Craig sees it straight away.

Scope

“Turning unmetered SPD up from 1200A to 1600A and turning up each tenancy main switch from 200A to 250A” (Craig)

Before you start

1. Do the JSA first: thorntek-jsa.pages.dev
2. The board stays live. Open the doors only. Escutcheons stay on: the MDB-A1, A2 and A3 dials show through the cut-outs.
3. Doors open: arc-rated clothing, insulated gloves, face shield.
4. Tools: small flat screwdriver, phone, seal stickers or lead seals, marker.
5. Only turn dials marked orange. Green = check only.
6. Anything doesn't match this page? Stop and call Craig 0415 190 248.

How to turn a dial

1. Cut the seal sticker and lift the clear cover over the dials.
2. Small flat screwdriver in the arrow slot. Turn clockwise to go up. One click per number.
3. Never turn a dial lower than where you found it. These breakers are on load.
4. Close the cover, re-seal it, sign and date the seal.

Where the breakers are

Chadwick drawing 10832 sheet 2 Rev B, escutcheons fitted. Orange = work on it. Grey = don't touch.

Notes

Sign off

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