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Fuse disconnect switch types
Fuse Disconnect Switches for Protection and Visible Isolation
Fuse disconnect switches place fuse protection at the same point as a switch or visible open point. Compare GWR high-voltage fuse type disconnects, RGW1 fuse-switch combinations, OFS-4A5 low tension fuse switches and low-voltage fused knife switches before sending an RFQ.
Product types
Fuse Disconnect Switch Types
Start with voltage class and fuse package. GWR and RGW1 cover the high-voltage options. OFS-4A5 covers the supplied 500 V low tension row, while the fused knife switch needs order-specific ratings.
FDS 0112/36 kV
GWR-12/36 Fuse Type Disconnect Switch
Outdoor AC high-voltage fuse type disconnect switch for distribution points that need fuse protection and visible isolation.
FDS 02HRC fuse type
RGW1-24/36 Fuse-Switch Combination
Outdoor AC fuse-switch combination using a disconnect blade, HRC fuse and operating mechanism in one assembly.
FDS 03500 V / 400 A
OFS-4A5 Low Tension Fuse Switch
Single-pole low tension fuse switch for outdoor installation with HRC fuse links and hook-stick operation.
FDS 04LV knife type
Low-Voltage Fused Knife Switch
Low-voltage fused knife switch with a manual handle and visible fuse positions.
Reference basisProduct type selector, not a single quoted model.
Use this selector to choose the right fuse disconnect configuration. Final model, drawing release and quotation still depend on the rating and mounting data sent with the RFQ.
Application fit
Fuse Protection Application Points
Choose the equipment by protection point: outdoor HV feeder, fuse-switch combination duty, low tension HRC fuse switching or LV knife isolation.
Protection role
Decide whether the fuse and visible open point sit at the same location
Use this type when the fuse is part of the switching or isolation point. If the line only needs visible no-load isolation, compare the outdoor disconnect or air break switch pages instead.
GWR fuse type disconnect
Use when the project needs 12 / 36 kV outdoor fuse-disconnect hardware with fuse cutout data and visible isolation structure.
RGW1 HRC fuse and blade
Use when disconnect blade, HRC fuse and operating mechanism should be selected as one fuse-switch combination.
OFS or fused knife switch
Use OFS-4A5 for 500 V single-pole outdoor HRC fuse switching. Use the fused knife switch type for manual low-voltage board isolation.
Selection matrix
Fuse Disconnect Selection Matrix
Use the matrix to choose the branch first: GWR/RGW1 for high-voltage fuse points, OFS-4A5 for 500 V outdoor low-tension HRC switching, or LV fused knife switch when ratings must come from the order file.
Product type
Application point
Fuse interface
Project data
GWR fuse type12/36 kV
Outdoor HV feeder/Fuse-protected tap/Visible open point
Fuse cutout/Three-phase frame/12 or 36 kV table
System voltage/Fuse cutout model/Rated current/Mounting drawing/Pollution class
RGW1 combination12/36 kV table
HV branch protection/HRC fuse duty/Switch combination
HRC fuse/Disconnect blade/Operating mechanism
Fuse size/Load-breaking duty/Loop current/Short-time current/Standard requirement
OFS-4A5 low tension500 V / 400 A
Low-tension outdoor point/Cross-arm installation/Hook-stick operation
HRC fuse link/NEMA terminal pad/Pull ring
500 V system/400 A duty/Fuse link size/Cross-arm dimension/IC and BIL
LV fused knifeProject rating
LV panel isolation/Manual incoming branch/Load-side protection
Knife contact/Fuse base/Manual handle
Project voltage/Project current/Fuse type/Incoming side/Panel and busbar layout
Structure
Fuse Interface and Mounting
Once the voltage class is selected, check the fuse package, operating side and mounting interface against the drawing or panel layout.
Structure inputs
Check these four inputs before the model is released.
Fuse packageFuse cutout, HRC fuse, fuse link or fuse base.
Switching structureVisible open point, disconnect blade, knife contact or load-side branch.
Operating methodHook-stick operation, manual handle, mechanism and operating side.
Mounting fitPole, cross-arm, terminal pad, panel busbar and incoming side.
Variant handling
Voltage and Fuse Duty Boundaries
With the fuse package fixed, check voltage, current, breaking duty, fuse link and mounting arrangement against the physical structure.
Separate HV rating rows from low-voltage fuse switch data.
GWR and RGW1 use 12 / 36 kV rating rows. OFS-4A5 lists 500 V, 400 A, 80 kA IC and 12 kV BIL. The fused knife switch photo needs order voltage and current data.
Check fuse package and blade duty before release.
GWR is a fuse cutout configuration with visible isolation. RGW1 combines HRC fuse, disconnect blade and operating mechanism. OFS uses hook-stick operation and an HRC fuse clamp at the low tension point.
Review files
Fuse Disconnect Documents
The review file should separate product identity, rating rows, structure checks and real project drawings. Technical scans can support the review, but they should not stand in for outline drawings; download fuse disconnect switch catalog PDFs before final model review.
Confirm the exact fuse disconnect type
Use clean product photos to separate GWR, RGW1, OFS-4A5 and fused knife switch structures before ratings are compared.
Match voltage and current to rating data
Use the 12 / 36 kV high-voltage rows, the 500 V low tension row or project data for the fused knife switch type.
Use real outline drawings only when available
Technical scans and sample photos are not drawings. If no clean English outline drawing exists, request a factory drawing before release.
Keep fuse interface and switching duty in the same release file
Fuse cutout, HRC fuse, fuse link, knife contact, operating side, mounting layout and destination standard should be checked together.
Engineering selection
Fuse Disconnect RFQ Data
Lock the electrical configuration first, then check fuse package, switching duty and mounting interface against the site drawing. For procurement review, check certificates, test reports and RFQ forms before release.
GWR/RGW1: 12 / 36 kV feeder points. OFS-4A5: 500 V outdoor LT. Fused knife: LV panel or board use.
Fuse cutout, HRC link, fuse base or knife contact decides the selected type.
Keep load break, loop, cable charging, IC and short-time withstand values in separate rows.
Cross-arm, terminal pad, busbar, incoming side and operating side must match the drawing.
Product typeGWR / RGW1 / OFS-4A5 / LV fused knife.
System voltage500 V, 12 kV, 24 kV or 36 kV.
Rated current100 A, 400 A or project value.
Fuse packageCutout, HRC fuse link, fuse base or knife fuse.
Switching dutyNo-load, active load, loop, cable charging or LV IC.
Withstand / ICShort-time current, making current, BIL or PF withstand.
Mounting interfacePole, cross-arm, frame, terminal pad or busbar.
Operation + siteHook-stick, mechanism, handle, altitude, pollution, wind and ice.
FAQ
Fuse Disconnect Switch FAQ
What fuse disconnect switch data is needed for RFQ?
Send the product type, system voltage, rated current, fuse type or fuse link, breaking duty, operating method, mounting layout, site conditions, quantity and destination standard.
High-voltage or low-voltage fuse disconnect switch: which type fits?
Start with the system voltage and installation point. Use GWR or RGW1 for high-voltage outdoor distribution points, OFS-4A5 for 500 V low tension outdoor fuse switching, and the fused knife switch when the project needs low-voltage manual knife isolation.
Is the low-voltage fused knife switch fully specified?
No. The supplied folder provides product imagery only. Verify voltage, current, fuse type, mounting layout and operation side before treating it as a model-specific selection.
When does RGW1 fit better than GWR-12/36?
Use RGW1 when the project needs a fuse-switch combination with disconnect blade, HRC fuse and operating mechanism. Use GWR-12/36 when fuse type disconnect hardware and fuse cutout rating data are the better fit.
Is a fuse disconnect switch a circuit breaker replacement?
No. This selector is for fuse disconnect, fuse-switch combination and fused knife switch selection. Fault interruption, load switching and isolation duties must be checked against the exact model data.
What drawings are needed for fuse disconnect selection?
Send mounting layout, operation side, pole or panel position, fuse package and terminal connection details when fixed dimensions or installation clearance matter.
Request Fuse Disconnect Quote
Send voltage, rated current, fuse type, breaking duty, operating method, mounting drawing, quantity and destination standard. XIYA will return the suitable product type, drawing check and quotation scope.