Welding Transformer

Assembly

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Three-phase to low-voltage secondary transformer delivering secondary current.

Direct parts	5
Total parts	5
Class	Assembly

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Three-phase to low-voltage secondary transformer delivering secondary current. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Welding Transformer parts and their functions

5 top-level parts · 5 parts in total · full bill of materials below

Welding Transformer parts diagram: 1 power transformer, 2 secondary taps, 3 output inductor, 4 power contactor, 5 relay. 5 parts in 5 top-level items. — Welding Transformer parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Power Transformer	1×	380/400V 3-phase 200–300 kVA step-down transformer
2	Secondary Taps	1×	Adjustable secondary taps (2–8V) for current selection
3	Output Inductor	1×	Inductor smoothing current pulses
4	Power Contactor	1×	Heavy-duty three-phase contactor switching primary
5	Relay	1×	Control relay for contactor gate drive from pulse timer

3D model

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Build & assembly graph

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Bill of materials for Welding Transformer

5 top-level lines · 5 rows shown · 5 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Power Transformer	seam-welder-power-transformer	1×	1	·	part
2	Secondary Taps	seam-welder-transformer-tap	1×	1	·	part
3	Output Inductor	seam-welder-output-inductor	1×	1	·	part
4	Power Contactor	seam-welder-contactor	1×	1	·	part
5	Relay	relay	1×	1	·	part

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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