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Load break switch product family
Load Break Switches for Feeder Switching and Ring Network Isolation
Use this selector to separate indoor AIS, SF6, puffer, outdoor air, fuse-combination, manual IACM, horn-gap, accessory, PGS, indoor vacuum and outdoor vacuum load break switch paths before confirming ratings and drawings.
12 product routesDirect category selector for the Load Break Switches equipment category.
5 Drawing tabsDrawing is shown only where a clean usable drawing view was processed.
Updated Jun 30, 2026Technical documents, clean product images, modal data and schema were checked together.
Product paths
Load break switch types by installation point and interruption medium
This category works best as one direct selector page. Some routes have full rating rows, some are image-supported, and some are accessory or cross-use paths.
LBS 01Indoor AIS
Indoor High Voltage Load Break Switch
Indoor high-voltage load switch path for cabinet switching, line protection and fuse-combination review where the FN7-12 indoor LBS family is identified.
LBS 02SF6 insulated
SF6 Gas Insulated Load Break Switch
Gas-insulated load break switch path for compact distribution equipment where the switching chamber and insulation medium define the route.
LBS 03Puffer indoor
Three Pole Puffer Type Indoor Load Isolator
Indoor three-pole puffer load isolator path where the puffer mechanism and indoor cabinet fit are the first selection questions.
LBS 04Arc chute
Outdoor Air Load Break Switch with Arc Chute
Outdoor air load break switch route for line switching where visible arc-chute hardware, pole mounting and operating linkage drive the choice.
LBS 05Fuse option
Medium Voltage Air Load Break Switch with Fuse
Medium-voltage air load break switch with fuse path for projects where switching duty and fuse protection are selected together.
LBS 06Outdoor air
Three Pole Outdoor Air Break Load Isolator
Three-pole outdoor air-break load isolator path for projects where product identity is clear but a complete public rating table is not available.
LBS 07Manual outdoor
IACM Manual Outdoor Load Break Switch
Manual outdoor IACM load break switch path with arcing-horn structure, polymer insulation and rod operation for overhead-line switching.
LBS 08Horn gap
Horn Gap Fuse Switch
Horn-gap fuse switch route for adjacent fuse switching material where the visual product path is useful but full rating rows are not present.
LBS 09Accessories
Load Break Switch Accessories and Parts
Accessory and replacement-parts route for load break switch mechanisms, contacts, linkage parts and support hardware.
LBS 10Pole SF6
Pole Mounted SF6 Load Break Switch PGS
Pole-mounted SF6 PGS path for smart-grid or feeder automation projects where LBS duty crosses into distribution automation scope.
LBS 11Vacuum indoor
Indoor Vacuum Load Break Switch
Indoor vacuum load break switch path for FZN/FZRN style switchgear applications where vacuum interruption and cabinet fit need to be checked together.
LBS 12Vacuum outdoor
Outdoor Vacuum Load Break Switch
Outdoor vacuum load break switch path for FZW32 12 kV and 40.5 kV feeder switching with visible disconnecting fracture and pole mounting.
Page roleDirect DSE category selector, not a disconnect-switch child page.
The page keeps every route under /distribution-switching-equipment/load-break-switches/ and does not push these products into the disconnect-switch hierarchy.
Product routes were checked against the Load Break Switches reference set.
Content, modal data, processed images, Drawing tabs and schema were reviewed together.
Ratings come from rating tables, readable PDFs, DOCX extracts, file titles or order-sheet confirmation.
Drawing tabs appear only where clean English drawings or clean cropped drawing views are available.
Application fit
Place the load break switch before choosing the model route
The application question comes first: indoor cabinet, outdoor feeder, ring network, fuse protection, manual overhead operation, automation or accessory replacement.
Switching role
Load break duty is selected by where the circuit is opened under load.
Separate load switching from visible no-load isolation. If the equipment is only for isolation, compare disconnect switch pages instead.
Cabinet switching and vacuum interrupter paths
Use FN7, FN18 or FZN21 when the switch sits inside a panel or switchgear cabinet.
Pole-mounted air, IACM or vacuum paths
Use FKW18, IACM, FZW32 or three-pole outdoor air paths when the site is an overhead feeder.
Fuse-combination and horn-gap paths
Use fused or horn-gap routes only when the project needs switching plus fuse protection review.
Selection matrix
Compare route, medium and rating data before RFQ release
This matrix is intentionally thin. It tells the engineer which product family to open, then the modal keeps the rating boundary for that product path.
Decision route
Interruption route
Rating data
Indoor cabinet pathFN7 / FN18 / FZN21
Indoor AIS or vacuum
Cabinet interface, mechanism side, fuse and interlock
Outdoor air pathFKW18 / three-pole outdoor / IACM
Arc chute, air break or manual rod operation
Pole spacing, support height, handle route and withstand duty
Fuse or horn-gap pathFKW18-36DR630A / horn-gap fuse switch
Switching plus fuse protection
Fuse carrier, fuse link, protection duty and mounting fit
SF6 pathSF6 gas-insulated / PGS pole-mounted SF6
Sealed gas chamber and optional controller
Voltage class, short-circuit duty, controller scope and communications
Accessory pathAccessories and parts
Part replacement or service package
Switch family, part dimensions, material and quantity
Outdoor vacuum pathFZW32-12 / FZW32-40.5
Vacuum interrupter with disconnecting fracture
Pole mounting, manual or motor operation and installation drawing
Structure
Interruption medium, operating drive and mounting interface
After the route is selected, check the switching chamber, contact path, operating drive and mounting interface from the matching technical documents.
Structure inputs
Use these checks before the product path is released.
Interruption mediumAir, puffer, SF6 or vacuum path must match the application point.
Contact pathArc chute, vacuum interrupter, horn gap, fuse carrier or disconnecting fracture.
Operating driveManual rod, hook operation, panel mechanism, motor drive or controller package.
Mounting fitCabinet, pole, cross-arm, support height, phase spacing and accessory interface.
Rating boundary
Keep rating rows separate across 12 product routes
The page does not reuse one product table across the whole category. Each modal states what the current documents support.
FN7, FN18 and FZN21 stay in the cabinet route.
Do not mix puffer, fuse-combination and vacuum values unless the order sheet names the same family.
FKW18, IACM, FZW32 and three-pole outdoor paths require site mounting data.
Pole spacing, support height, operation side and drawing status decide the release package.
Document review
Review documents for load break switch selection
Clean product images are used for route recognition. Scanned pages, French sheets and Chinese drawings remain internal unless they can be processed into a usable English or clean drawing view.
Use white-background product images
The main page cards avoid scan pages and scanned document screenshots.
State only what the available documents support
Image-supported routes do not receive invented voltage or current rows.
Show Drawing only for processed usable views
FN7, FN18, FKW18, FZN21 and FZW32 include Drawing tabs. IACM stays SPEC-only because the available drawing-like documents are French.
Keep this under Load Break Switches
These routes are not moved under disconnect switches, even when a reference name includes isolator or disconnecting fracture.
Engineering selection
Engineering inputs for load break switch RFQ review
Send the product route and the switching duty first, then match the medium, rating row, operation method and mounting interface.
Indoor, outdoor, SF6, vacuum, fused, horn-gap, accessory or PGS route.
Air, puffer, SF6 or vacuum must match the feeder application.
Do not copy values across unrelated product routes.
Cabinet, pole, cross-arm, support height, operation side and controller scope decide the package.
Product pathOne of the 12 LBS routes on this page.
System voltage12, 24, 36, 40.5 kV or project value.
Rated currentUse the rating table or project order sheet.
Switching dutyActive load, closed-loop, cable charging or transformer route.
Interruption mediumAir, puffer, SF6 or vacuum.
Protection optionFuse carrier, horn gap, controller or accessory scope.
Mounting interfaceIndoor cabinet, pole, cross-arm, support or bracket.
Operation and siteManual, motorized, rod operation, controller and destination standard.
FAQ
Load break switch selection FAQ
What is a load break switch?
A load break switch opens and closes load current in a medium-voltage distribution feeder, ring network or transformer branch. Select it by installation point, interruption medium, rated current, load-breaking duty, short-time withstand, fuse or controller package, operating method and mounting interface.
Is this page a first-level product hub or a deep product page?
It is a direct category selector under Distribution Switching Equipment. This category includes 12 load break switch routes, many without another clean subcategory layer, so this page keeps the routes in one engineering selector.
Why do some load break switch paths have Drawing tabs and others do not?
Drawing tabs are shown only where a clean drawing or a cleanly cropped English drawing view is available. French, Chinese, scanned or poster-style pages stay internal and the modal remains SPEC-only.
Can the accessory group define switch ratings?
No. Accessories and parts support compatibility review only. Voltage, current and withstand duty must come from the matching switch family or project order sheet.
How should engineers choose between air, SF6 and vacuum paths?
Start from the installation point and interruption medium. Indoor cabinets use indoor AIS or vacuum routes, outdoor pole feeders use air, IACM or vacuum routes, and compact or automation projects may use SF6 or PGS paths.
What should be sent with a load break switch RFQ?
Send the product route, system voltage, rated current, interruption medium, switching duty, fuse or controller requirement, mounting interface, operation side, drawing status, quantity and destination standard.
Request a quote with load break switch details
Send the route, system voltage, rated current, interruption medium, switching duty, fuse or controller requirement, mounting interface, operation side, available drawing and destination standard. XIYA will return the suitable load break switch path and documentation boundary.