Distribution boards with automatic transfer switching and a transformer cooling control cabinet. From the design institute's schematics to a drawing package and a 3D model where every device comes from its manufacturer's STEP.
The factory gets schematics from the design institute, but a cabinet is assembled from working documentation: layout, copper, bill of materials, wiring table, labelling. The facility has sixteen such cabinets, and the package is the same every time.
My job: build the documentation so the next cabinet does not start from zero, and take every one to 3D that proves the devices, busbars and cables really fit the enclosure.
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A schematic always fits on paper. A cabinet does not always, and that has to be found before the factory, not at it.
No made-up devices. Schneider Electric breakers, contactors, relays and switch-disconnectors sit in 3D from the manufacturer's STEP, part numbers checked against datasheets. A motor-operated breaker turned out 284 mm deep, not 225, and it was the 3D that caught it.
Cables need a way out. The first ShR.KRUE layout looked right, but checking cable routes showed the 5 × 95 outgoing cables had no path to the gland plate and the side ducts would be 65 to 79 % full. The cabinet was re-laid out bottom up.
Copper and clearances. Busbars, flexible bars, insulators and links are modelled one by one: 79 copper items in ShR.KRUE, phase gaps of at least 8 mm, and the bill of materials counts flexible bar from the model.
Enclosure from the maker's data. The 1650 × 1052 × 515 ShAOT enclosure was checked against the enclosure maker's own 3D: asymmetric doors, frame, split gland plate; over 250 mm from the switches to the nearest device, so the doors close.
One generator for all cabinets: a cabinet is data, and the drawing package and the 3D are built from it automatically.
Cabinet data → schematic E3, layout E7, bill of materials, wiring diagram E4, Excel wiring and labelling tables
End-to-end check schematic ↔ BOM ↔ layout ↔ labels ↔ E4: zero mismatches, plus a clearance check on the sheets
The same generator builds the Fusion 360 3D in stages: enclosure, devices from Schneider STEP, copper, cables, threaded fasteners
Ferrules come from the wiring table: in ShR.KRUE 122 single 1.5 ferrules, 60 twin ones, a lug for every power core, 248 markers
3D clash check: zero in every cabinet (ShR.KRUE 768 bodies, RShch.ZRU 1213, ShchZS-BRP AT 674, ShAOT 504)
KUB enclosures: RShch.ZRU and ShchZS-BRP AT are 2000 × 800 × 600 single-door, ShAOT is 1650 × 1052 × 515 double-door. Schneider Electric devices: NSX, iC60 and C120 breakers, INS and iSW switch-disconnectors, TeSys contactors, Zelio relays; Weidmüller terminals and DIN rails, PG cable glands.
Masses are from the E7 drawings including copper, devices and fasteners. The ShR.KRUE wiring table has 124 wires, ShAOT 216.
Every cabinet has the same package: bill of materials, general view and layout E7 with a label list, schematic E3, wiring diagram E4. Each one also comes with Excel wiring and labelling tables, a STEP and 3D views.
The client approved the ShR.KRUE reference cabinet without comments, and RShch.ZRU and ShchZS-BRP AT followed from the same generator. A new cabinet is new data, not a new package from scratch.
Every cabinet reaches the factory with 3D that shows everything fits, and with the tables it is assembled and labelled from.
Send a sketch or a photo, and within 24 hours I'll tell you how long it takes and what I need from you.
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