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Step Switching

Assembly

The contactors that connect or drop element groups to set the load in fixed kilowatt steps. 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

4 top-level parts · 19 parts in total · full bill of materials below
Step Switching parts diagram: 1 step contactor, 2 fine contactor, 3 contactor bus, 4 relay. 19 parts in 4 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 Step Contactor 8× Step contactors
2 Fine Contactor 4× Fine-trim contactors
3 Contactor Bus 1× Contactor bus
4 Relay 6× Electromechanical switch in which a small coil current closes or opens contacts rated for a much larger load, isolating control circuits from what they switch.

3D model

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Build & assembly graph

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

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Bill of materials for Step Switching

4 top-level lines · 4 rows shown · 19 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Step Contactor load-bank-resistive-step-contactor 8× 8 · part
2 Fine Contactor load-bank-resistive-fine-contactor 4× 4 · part
3 Contactor Bus load-bank-resistive-contactor-bus 1× 1 · part
4 Relay relay 6× 6 · part

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Where the step switching 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