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SF6 Circuit Breaker

Assembly

Three-pole SF6 puffer-type interrupter with spring operating mechanism, the primary fault-clearing device. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

SF6 Circuit Breaker parts and their functions

6 top-level parts · 47 parts in total · full bill of materials below
SF6 Circuit Breaker parts diagram: 1 interrupter unit, 2 spring operating mechanism, 3 support insulator, 4 breaker pole housing, 5 grading capacitor, 6 o-ring set. 47 parts in 6 top-level items.
SF6 Circuit Breaker parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Interrupter Unit 6 parts 3× Interrupter chamber, one per phase
2 Spring Operating Mechanism 8 parts 1× Spring operating mechanism driving all three poles
3 Support Insulator 3× Epoxy post insulator carrying each pole
4 Breaker Pole Housing 3× Cast aluminum pole housing
5 Grading Capacitor 3× Voltage grading capacitor across the gap
6 O-Ring Set 6× Flange seals between breaker compartments

3D model

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Build & assembly graph

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Bill of materials for SF6 Circuit Breaker

6 top-level lines · 20 rows shown · 47 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Interrupter Unit 6 parts gas-insulated-switchgear-interrupter-unit 3× 3 7 assembly
1.1 Main Contact gas-insulated-switchgear-main-contact 1× 3 · part
1.2 Arcing Contact gas-insulated-switchgear-arcing-contact 2× 6 · part
1.3 Puffer Cylinder gas-insulated-switchgear-puffer-cylinder 1× 3 · part
1.4 PTFE Nozzle gas-insulated-switchgear-nozzle 1× 3 · part
1.5 Insulated Pull Rod gas-insulated-switchgear-moving-rod 1× 3 · part
1.6 Contact Pressure Spring gas-insulated-switchgear-contact-spring 1× 3 · part
2 Spring Operating Mechanism 8 parts gas-insulated-switchgear-operating-mechanism 1× 1 11 assembly
2.1 Closing Spring gas-insulated-switchgear-closing-spring 1× 1 · part
2.2 Opening Spring gas-insulated-switchgear-opening-spring 3× 3 · part
2.3 Spring Charging Motor gas-insulated-switchgear-charging-motor 1× 1 · part
2.4 Trip / Close Coil gas-insulated-switchgear-trip-coil 2× 2 · part
2.5 Cam and Latch Shaft gas-insulated-switchgear-cam-shaft 1× 1 · part
2.6 Hydraulic Damper gas-insulated-switchgear-damper 1× 1 · part
2.7 Helical Gear Pair gear-pair 1× 1 · part
2.8 Fastener Set fastener-set 1× 1 · part
3 Support Insulator gas-insulated-switchgear-support-insulator 3× 3 · part
4 Breaker Pole Housing gas-insulated-switchgear-cb-enclosure 3× 3 · part
5 Grading Capacitor gas-insulated-switchgear-grading-capacitor 3× 3 · part
6 O-Ring Set oring-set 6× 6 · part

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Where the SF6 circuit breaker 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