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Drop out fuse product category
Drop Out Fuses for Cutout, Expulsion, Windproof and Fuse Link Options
Compare standard cutout bodies, ANSI IEC options, polymer and porcelain bodies, 300A and 400A current rows, protected and enclosed designs, windproof cutouts, bracket accessories and fuse-link packages before quotation review.
Product types
Drop Out Fuse Types
Choose by cutout body, insulation material, protection duty, mounting style and accessory role. Keep product identity, technical values and rating boundary separate before quotation review.
FU 01Standard cutout
Standard Drop Out Fuse Cutout
Standard cutout option for overhead distribution protection where fuse tube, upper and lower contacts, insulator body and mounting bracket must be confirmed together.
FU 02ANSI / IEC
ANSI IEC Standard Fuse Cutout
Standard coordination option for buyers who need the cutout package checked against destination standard and feeder practice.
FU 03Polymer
Polymer Drop Out Fuse Cutout
Silicone or polymer insulation option for outdoor feeders where lighter housing, shed profile and site exposure drive the selection.
FU 04Porcelain
Porcelain Drop Out Fuse Cutout
Porcelain insulation option for 12-38 kV RW12 cutouts where the 100A rating row, creepage distance, contact hardware and fuse tube fit are selected together.
FU 05300A
300A Expulsion Fuse Cutout
Higher-current Type MZ option where the 300A disconnect rows, BIL class, leakage distance, fuse tube and terminal package must be checked as one package.
FU 06Bracket
V Type Drop Out Fuse Bracket
Support-hardware package for mounting geometry review; it does not define fuse-link current rating or full cutout voltage class by itself.
FU 07Double column
Double Column Cutout Fuse
Dual-support option where two insulator columns and base spacing must be confirmed before order release.
FU 08RW5
RW5 33kV Fuse Cutout
33 kV pole-mounted protection option where dual insulator support and blade geometry are part of the selection boundary.
FU 09HRW12
HRW12 12kV to 38kV Drop Out Fuse Cutout
Multi-voltage selection option where the 100A Rw12 rows and 200A HRW12 rows must stay separate from each other before mounting and fuse-link selection.
FU 10400A
400A Pole Mounted Fuse Cutout
Pole-mounted low-voltage option where the 400A J-type fuse-link package, enclosure material, terminal range and IP43 design target must be checked together.
FU 11NT switch
Pole Mounted NT Fuse Switch Disconnector
Low-voltage pole-mounted switch-disconnector option where NH fuse size, FSD body size, operation mode, terminals and indicator option must be selected together.
FU 12Protected
Protected Cut Out Fuse
Sealed protected 12 kV cutout option for harsh outdoor feeders where all-insulated construction, 50A duty, 6-50A fuse range and pollution resistance are the selection basis.
FU 13Enclosed
Outdoor Enclosed Expulsion Fuse Cutout
Outdoor enclosed expulsion option for 12 kV, 50A protection where PRW 6-50A fuse range, 12.5 kA breaking duty and enclosed body behavior must stay together.
FU 14Windproof
Windproof Fuse Cutout
High-wind outdoor installation option where 40.5 kV voltage duty, 100/200A operating current rows, wind condition and the available dimension view must stay linked.
FU 15Fuse link
Fuse Link for Drop Out Fuse Cutout
Accessory fuse-link package for K/T fuse element selection, current range and button or screw-thread construction; it does not define cutout voltage class by itself.
Application fit
Drop Out Fuse Applications
The first decision is the installation role: feeder branch, transformer tap, service point, protected enclosure, windproof outdoor point or accessory replacement.
Protection role
Drop out fuse duty is selected by where the fuse must isolate a branch.
Separate the cutout body from fuse-link coordination and mounting accessories before comparing voltage or breaking rows.
Standard, ANSI IEC, polymer and porcelain cutout bodies
Use these options when the main pole-mounted cutout body carries the protection duty.
300A and 400A cutout packages
Use these options when the current path and contact package are the first selection constraint.
Protected, enclosed and windproof installation conditions
Use these options when enclosure, wind action, cable path or site protection changes the cutout body.
Support hardware and fuse-link package after body selection
Confirm these options after the compatible cutout body is known.
Selection matrix
Drop Out Fuse Selection Matrix
Choose the product type first, then check the matching rating row, mounting boundary and document requirement.
Decision option
What to confirm
Selection boundary
Standard / ANSI IECStandard cutout body
Destination standard, feeder voltage, current row and fuse-link compatibility
Use when the order follows a standard pole cutout body and the destination standard drives hardware choice.
Polymer / porcelainInsulation body option
Housing material, creepage distance, shed profile and site exposure
Keep insulation material, creepage and mechanical fit tied to the selected body option.
300A / 400AHigher-current option
Contact package, fuse tube, voltage class and breaking duty
Confirm contact package and fuse tube before assigning the higher-current row.
Protected / enclosedGuarded or enclosed body option
Housing, cable entry, service condition and access requirement
Use when enclosure, cable path or guarded access changes the cutout package.
WindproofHigh-wind cutout option
HGRW model, 40.5 kV, 200A, 12.5 kA and dimension drawing
Use the available dimension view for mounting checks and keep HGRW data with this option.
Bracket / fuse linkAccessory option
Cutout body compatibility before accessory current or mounting release
Accessory rows do not define full cutout voltage, current or interruption duty.
Working principle
Drop Out Fuse Operation
A drop out fuse cutout combines an insulator body, upper contact, lower hinge, fuse tube and pull ring. When the fuse element melts, the tube releases and drops open to show the protected branch is isolated.
Operating checks before release
Confirm the load path, fuse action and mounting interface as one package.
Contact pathUpper and lower contacts carry normal current and must match the selected current row.
Fuse tube actionThe fuse tube supports the fuse link and drops open after operation.
Arc pathExpulsion action and fuse-link coordination decide the protection package.
Bracket interfacePole hardware, V bracket, enclosure or protected body decides mounting fit.
Rating boundary
Drop Out Fuse Ratings
This category includes full cutout bodies and accessory packages. Do not assign voltage class, current row or breaking duty from an accessory image alone.
Voltage, current and breaking rows belong to the selected cutout body.
Standard, ANSI IEC, polymer, porcelain, expulsion, protected, enclosed and windproof options require separate model confirmation.
Accessory data supports fit and coordination only.
Use bracket data for mounting geometry and fuse-link data for protection coordination after the cutout body is known.
Document review
Drop Out Fuse Drawings
Use product images for configuration recognition, technical documents for listed values, and drawing views only when dimensions support mounting or fuse-link checks; teams can also download drop-out fuse catalog PDFs before final model review.
Match the visible configuration
Use product photos to distinguish cutout body, enclosure, bracket and fuse-link forms; do not assign ratings from appearance alone.
Keep values document-backed
Photo-only or accessory options do not receive invented voltage, current or breaking rows.
Use drawings for dimensions, not ratings
Dimension or curve views support mounting, terminal and fuse-link checks; unavailable views should become an outline request.
Keep model rows tied to their tables
RW5, HRW12, HGRW, NT and fuse-link rows must stay with their own voltage, current and construction data.
Engineering selection
Drop Out Fuse RFQ Data
Confirm product type, duty, mounting and document requirements in that order so quotation data stays tied to the selected body, or check certificates, test reports and RFQ forms when project files need review.
Standard, ANSI IEC, polymer, porcelain, expulsion, windproof, protected, enclosed, bracket or fuse-link option.
System voltage, rated current, breaking duty and fuse-link coordination.
Pole, crossarm, bracket, V-type support, enclosure or protected cable path.
Use the published drawing view for fixed interfaces or ask XIYA to return an outline.
Product typeSelected cutout body, accessory or fuse-link option.
System voltageNominal voltage, insulation level, destination standard and outdoor exposure.
Rated currentCutout current row or fuse-link current range, kept separate by product type.
Breaking dutyFault current or interruption duty required at the installation point.
Fuse packageFuse tube, fuse-link type, speed, button, rope, thread or arc-extinguishing tube detail.
Mounting interfacePole, crossarm, bracket, V-type support, enclosed body or protected cable path.
Dimension requirementPublished view, outline drawing request or curve reference required for the selected option.
QuantityQuantity by phase, product type, spare requirement and destination standard.
FAQ
Drop Out Fuse FAQ
What is a drop out fuse used for?
It protects an overhead distribution branch, transformer tap or feeder section by opening the fuse tube after the fuse element operates.
When should drawing information be used for drop out fuses?
Use drawing information for bracket fit, enclosure space, terminal position, fuse-link dimensions and curve checks. If an option does not provide a usable drawing view, include an outline request with the RFQ.
Can a bracket or fuse link define the full cutout rating?
No. They support mounting or fuse-element coordination only. The selected cutout body sets voltage class, current row and breaking duty.
How should protected, enclosed and windproof cutouts be separated?
Use protected or enclosed options when guarded access, cable entry or service enclosure drives the body choice. Use windproof options when wind action and stable drop-out behavior are the main fit questions.
Request Drop Out Fuse Quote
Send the selected product type, rating row, protection duty and any fixed mounting dimensions. XIYA will confirm the matching cutout body, accessory compatibility, dimension requirement and document list.