BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

Low-Voltage Electrical

Assembly

Auxiliary power converter stepping 750 V DC down to a 110 V DC control bus and 400 V AC for HVAC and compressors, with a backup battery for emergency lighting and controls. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Low-Voltage Electrical parts and their functions

4 top-level parts · 217 parts in total · full bill of materials below
Low-Voltage Electrical parts diagram: 1 static auxiliary converter, 2 backup battery (ni-cd), 3 LV wiring harness, 4 LV distribution box. 217 parts in 4 top-level items.
Low-Voltage Electrical parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Static Auxiliary Converter 5 parts 1× Static auxiliary converter
2 Backup Battery (Ni-Cd) 2 parts 1× Nickel-cadmium backup
3 LV Wiring Harness 3 parts 1× LV wiring
4 LV Distribution Box 3 parts 1× Fuses + breakers

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Low-Voltage Electrical

4 top-level lines · 17 rows shown · 217 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Static Auxiliary Converter 5 parts rubber-tyred-metro-aux-converter 1× 1 9 assembly
1.1 Bare PCB pcb-bare 2× 2 · part
1.2 IGBT Power Stack rubber-tyred-metro-igbt-stack 1× 1 · part
1.3 DC-Link Capacitor rubber-tyred-metro-dc-link-cap 4× 4 · part
1.4 Power Supply power-supply 1× 1 · part
1.5 Auxiliary Transformer rubber-tyred-metro-aux-transformer 1× 1 · part
2 Backup Battery (Ni-Cd) 2 parts rubber-tyred-metro-battery 1× 1 81 assembly
2.1 Ni-Cd Cell rubber-tyred-metro-battery-cell 80× 80 · part
2.2 Battery Tray rubber-tyred-metro-battery-tray 1× 1 · part
3 LV Wiring Harness 3 parts rubber-tyred-metro-lv-harness 1× 1 77 assembly
3.1 Wire Bundle wire-bundle 1× 1 · part
3.2 Connector connector 60× 60 · part
3.3 Relay relay 16× 16 · part
4 LV Distribution Box 3 parts rubber-tyred-metro-distribution-box 1× 1 50 assembly
4.1 Miniature Circuit Breaker rubber-tyred-metro-breaker 12× 12 · part
4.2 Relay relay 8× 8 · part
4.3 Connector connector 30× 30 · part

Something wrong in this list? Report a problem with this BOM.

Where the low-voltage electrical is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
bydelectronic.com ↗ Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗
Singapore Electronics contract mfg 1,000 pcs 6–10 wks