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

Control System

Assembly

Manual series-parallel drum controller stepping the two motors through resistor banks, supported by line breaker, reverser, and fuses, in the heritage configuration rather than solid-state chopper control. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Control System parts and their functions

8 top-level parts · 59 parts in total · full bill of materials below
Control System parts diagram: 1 drum controller, 2 resistor bank, 3 line breaker, 4 reverser drum, 5 main HV fuse, 6 power contactor, 7 relay, 8 wire bundle. 59 parts in 8 top-level items.
Control System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Drum Controller 4 parts 2× One per operating end
2 Resistor Bank 2 parts 1× Starting and braking grids
3 Line Breaker 1× Main HV circuit breaker
4 Reverser Drum 1× Motor field reverser drum
5 Main HV Fuse 2× HV cartridge fuses
6 Power Contactor 6× Power switching contactors
7 Relay 4× Control interlocks
8 Wire Bundle 2× Control and power wiring

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 Control System

8 top-level lines · 14 rows shown · 59 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Drum Controller 4 parts heritage-streetcar-drum-controller 2× 2 15 assembly
1.1 Controller Drum heritage-streetcar-controller-drum 1× 2 · part
1.2 Contact Finger heritage-streetcar-controller-finger 12× 24 · part
1.3 Controller Handle heritage-streetcar-controller-handle 1× 2 · part
1.4 Arc Chute heritage-streetcar-arc-chute 1× 2 · part
2 Resistor Bank 2 parts heritage-streetcar-resistor-bank 1× 1 13 assembly
2.1 Grid Resistor heritage-streetcar-grid-resistor 12× 12 · part
2.2 Resistor Frame heritage-streetcar-grid-frame 1× 1 · part
3 Line Breaker heritage-streetcar-line-breaker 1× 1 · part
4 Reverser Drum heritage-streetcar-reverser 1× 1 · part
5 Main HV Fuse heritage-streetcar-main-fuse 2× 2 · part
6 Power Contactor heritage-streetcar-contactor 6× 6 · part
7 Relay relay 4× 4 · part
8 Wire Bundle wire-bundle 2× 2 · part

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

Where the control system is used

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

Used in 1 assembly

Heritage Streetcar

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 (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
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