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Step Switching

Assembly

Capacitor-duty contactors that connect and disconnect steps, each protected by HRC fuses, with pre-charge resistors to limit inrush. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Step Switching parts and their functions

3 top-level parts · 30 parts in total · full bill of materials below
Step Switching parts diagram: 1 capacitor-duty contactor, 2 HRC fuse, 3 inrush resistor. 30 parts in 3 top-level items.
Step Switching parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Capacitor-Duty Contactor 2 parts 5× Capacitor-duty contactor per step
2 HRC Fuse 15× HRC fuse, three per step
3 Inrush Resistor 5× Pre-insertion damping resistor

3D model

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Build & assembly graph

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Bill of materials for Step Switching

3 top-level lines · 5 rows shown · 30 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Capacitor-Duty Contactor 2 parts capbank-contactor 5× 5 2 assembly
1.1 Relay relay 1× 5 · part
1.2 Power Contact Block capbank-contact-block 1× 5 · part
2 HRC Fuse capbank-fuse 15× 15 · part
3 Inrush Resistor capbank-inrush-resistor 5× 5 · part

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Where the step switching is used

3 products across 2 domains 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