A cabinet for voltage-transformer circuits in a relay protection system: 3D device layout from manufacturer models, schematic, wiring diagram, wire table and labelling for assembly.
The factory sent a brief for a voltage-transformer terminal cabinet: device list, terminal count, enclosure requirements and labelling per the relay protection project.
My part: build the cabinet in 3D from real device models, lay them out so everything fits and stays serviceable, and issue documentation to assemble and install it without questions.
85 disconnect terminals, two switch-disconnectors, six breakers and heating in a 600 mm wide enclosure.
A dense mounting plate. XT1 with 85 URTK/S disconnect terminals and 10 UT4 feed-through terminals takes almost the full height, so breakers, switches and heating sit on DIN rails to the right.
Real device envelopes. Switch-disconnectors, iC60N breakers, auxiliary contacts, socket, heater and thermostat are manufacturer models, not boxes, so ducts and clearances are checked for real.
Schematic and table must agree. 65 wires, addresses at both ends, terminal bridges: one error in the table means a wrongly assembled cabinet.
Outdoors. AISI 304 IP54 enclosure with a rain roof, a 150 W heater with thermostat against condensation, cable glands at the bottom.
All cabinet data lives in one place, and schematics, tables and labels are generated from it, so they cannot drift apart.
1200 × 600 × 450 AISI 304 s1.5 enclosure, 2.5 mm galvanised mounting plate, wall brackets
Devices: 2 SIRCO MV 4P 100 A switch-disconnectors, 5 iC60N 3P 2 A and 1 iC60N 1P 6 A breakers with iOF contacts
Phoenix Contact terminals: XT1 85 × URTK/S + 10 × UT4, XT2 7 × UT10 + 3 × UT10-PE, tinned copper PE bar
Single data source: devices, terminals, bridges, 65 wires and labels; all sheets and Excel files are built from it
Automated check of addresses, nets and wire counts, plus a search for text overlapping lines in the PDF
Enclosure and door in 1.5 mm AISI 304 stainless, IP54, rain roof, four wall brackets. Inside: galvanised mounting plate, TS35 DIN rails, 40 × 60 slotted ducts, cable support rail.
Devices: Socomec SIRCO MV switch-disconnectors, Schneider Electric iC60N breakers with auxiliary contacts, 2P+E socket, NSYCR150 heater with thermostat, door limit switch, lamp; Phoenix Contact terminals.
The package: bill of materials, general arrangement and device layout, schematic, wiring diagrams 4.1 and 4.2, XT1 and XT2 terminal tables. Separately in Excel: connection table and wire labels.
The factory got a cabinet it can assemble without queries: every device has a place, every wire has an address at both ends, every terminal has a label.
A change now means editing one data file and regenerating: schematics, tables and labels update together and never disagree.
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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