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Discussion History

Operating Mechanism

Assembly

Stored-energy spring drive that closes and trips the breaker poles. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Operating Mechanism parts and their functions

6 top-level parts · 8 parts in total · full bill of materials below
Operating Mechanism parts diagram: 1 coil spring, 2 spring charging motor, 3 trip coil, 4 closing coil, 5 auxiliary switch, 6 helical gear pair. 8 parts in 6 top-level items.
Operating Mechanism parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Coil Spring 2× Helical spring of round steel wire that stores energy in compression or extension, used for suspension, return force, and preload.
2 Spring Charging Motor 1× Geared motor that re-charges the closing spring after each operation.
3 Trip Coil 2× Solenoid that releases the opening spring on a protection signal.
4 Closing Coil 1× Solenoid releasing the closing spring to make the contacts.
5 Auxiliary Switch 1× Contact block signalling breaker open or closed state to the relay panel.
6 Helical Gear Pair 1× Two meshing helical gears forming one reduction stage that steps torque up and speed down between parallel shafts with quiet, continuous tooth contact.

3D model

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Build & assembly graph

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Bill of materials for Operating Mechanism

6 top-level lines · 6 rows shown · 8 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Coil Spring coil-spring 2× 2 · part
2 Spring Charging Motor ais-charging-motor 1× 1 · part
3 Trip Coil ais-trip-coil 2× 2 · part
4 Closing Coil ais-close-coil 1× 1 · part
5 Auxiliary Switch ais-aux-switch 1× 1 · part
6 Helical Gear Pair gear-pair 1× 1 · part

Where the operating mechanism is used

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

Used in 1 assembly

SF6 Circuit Breaker

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