Electrical System parts and their functions

19 top-level parts · 10,769 parts in total · full bill of materials below

#	Part	Qty	What it does
1	12 V Battery	2×	24V pack
2	LV Wiring Harness 4 parts	1×	Low-voltage wiring harness distributing 12 V power and signals to lights, sensors, switches, and control units.
3	Fuse Box	1×	Enclosure holding the fuses and relays that protect and switch the vehicle's electrical circuits.
4	Lighting Set 3 parts	1×	Exterior and interior LED lighting.
5	Insulated Wire (cut length)	2200×	One cut-to-length conductor in the multiplex or power harness.
6	Crimp Terminal	4400×	two per wire
7	Connector	380×	Mating plug-and-socket pair that joins two lengths of wiring or a cable to a board so a circuit can be assembled, serviced, and separated without soldering.
8	Fuse	90×	Blade or midi fuse protecting one circuit.
9	Multiplex I/O Node	12×	Distributed input/output module on the vehicle CAN bus.
10	Electronic Control Unit 4 parts	16×	engine, transmission, ABS, doors, HVAC, lighting and more
11	Camera	6×	Door, rear-view or saloon CCTV camera.
12	Passenger Counter Sensor	4×	Infrared or stereo sensor above each door.
13	PA Speaker	10×	Saloon loudspeaker for announcements.
14	Battery Cable & Isolator	1×	Heavy 24 V cables, master isolator switch and busbar.
15	Alternator	2×	High-output 24 V alternator.
16	Starter Motor	1×	24 V starter motor.
17	Cable Tie & Harness Clip	900×	Tie or clip securing wiring, air lines and hoses to the frame.
18	Ticket Machine & Validator	3×	Fare collection unit and card validators at the doors.
19	LED	1200×	interior lighting strips

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Build & assembly graph

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Bill of materials for Electrical System

19 top-level lines · 30 rows shown · 10,769 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	12 V Battery	lv-battery	2×	2	·	part
2	LV Wiring Harness 4 parts	lv-harness	1×	1	54	assembly
2.1	Wire Bundle	wire-bundle	1×	1	·	part
2.2	Connector	connector	40×	40	·	part
2.3	Fuse Box	fuse-box	1×	1	·	part
2.4	Relay	relay	12×	12	·	part
3	Fuse Box	fuse-box	1×	1	·	part
4	Lighting Set 3 parts	city-bus-lighting	1×	1	15	assembly
4.1	Headlight	city-bus-headlight	2×	2	·	part
4.2	Interior Light	city-bus-interior-light	12×	12	·	part
4.3	Wire Bundle	wire-bundle	1×	1	·	part
5	Insulated Wire (cut length)	city-bus-wire	2200×	2,200	·	part
6	Crimp Terminal	city-bus-crimp-terminal	4400×	4,400	·	part
7	Connector	connector	380×	380	·	part
8	Fuse	city-bus-fuse	90×	90	·	part
9	Multiplex I/O Node	city-bus-multiplex-node	12×	12	·	part
10	Electronic Control Unit 4 parts	ecu	16×	16	93	assembly
10.1	Bare PCB	pcb-bare	1×	16	·	part
10.2	Microcontroller	mcu	1×	16	·	part
10.3	CAN Transceiver	can-transceiver	1×	16	·	part
10.4	SMD Passive (R/C/L)	smd-passives	90×	1,440	·	part
11	Camera	city-bus-camera	6×	6	·	part
12	Passenger Counter Sensor	city-bus-passenger-counter	4×	4	·	part
13	PA Speaker	city-bus-pa-speaker	10×	10	·	part
14	Battery Cable & Isolator	city-bus-battery-cable	1×	1	·	part
15	Alternator	city-bus-alternator	2×	2	·	part
16	Starter Motor	city-bus-starter	1×	1	·	part
17	Cable Tie & Harness Clip	city-bus-cable-tie	900×	900	·	part
18	Ticket Machine & Validator	city-bus-ticket-machine	3×	3	·	part
19	LED	city-bus-led	1200×	1,200	·	part

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Where the electrical system is used

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

• Rail & Transit 1 City Bus

Used in 1 assembly

City Bus

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

Vendor	HQ	Specialty	MOQ	Lead 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