In-Line Watertight Fuseholders
Two-Pole Breakaway
www.littelfuse.com | 800-TEC-FUSE © 2008 Littelfuse • POWR-GARD™ Products
LEXT-YY-S and LEX-YYC-S series breakaway fuseholders meet
state and federal highway commission safety standards requiring
fuseholders to readily disconnect from power in case of a pole
knockdown. The breakaway feature consists of a receptacle
permanently attached to the power line and a fuseholder with
matching terminals. If a knockdown occurs, the parts separate
leaving the energized conductor recessed and unexposed.
Applications
These two-pole breakaway In-Line fuseholders are designed
for high humidity and corrosive environments where fuses are
required. Examples include street lighting, marinas, travel trailer
parks and other locations where fuseholders may be exposed to
physical strain.
Features/Benefits
• LEXT-YYversionhasapermanentlyinstalled“neutral”
slug to prevent the neutral from accidentally being fused
• LEX-YYversionallowsforfusingofline-to-lineloadsor
other applications requiring 2 fuses to disconnect under
strain
• Fiberglasspolymerbodyresistsdamagefromimpact
• Four“Y”typeset-screwterminalsaccommodateawide
range of solid and stranded Cu or Al conductors
• O-ringandterminalbootsformwatertightseal,
preventing leakage
Specifications
Part numbers: LEXT-YY-S (Solid neutral)
LEX-YY-C-S
Voltage Rating: 600 VAC/VDC
Ampere Rating: 30 Amperes
Interrupting Rating: 200,000 amperes with Class CC Fuses
Y Terminals: Plated Copper w/ set screws
Wire Size: 1 solid #12 to #8 or 1 stranded #10 to # 2
Approvals: UL Recognized (File E14721)
CSA Certified (File LR7316)
Breakaway
Part Number Fuse Type
Load Terminal Selection Line Terminal Selection
Terminal
Type
Load
Terminal
Wire Size
Range
No. of Wires
per Terminal
Solid
Wire
Standard
Wire
Terminal
Type
Load
Terminal
Wire Size
Range
No. of Wires
per Terminal
Solid
Wire
Standard
Wire
LEXT-YY-S Midget,
Class CC
“Y” type
Copper
Set-Screw
#12 to #8
#10 to #2
1
1
X
X
“Y” type
Copper
Set-Screw
#12 to #8
#10 to #2
1
1
X
X
LEX-YY-C-S Midget,
Class CC
“Y” type
Copper
Set-Screw
#12 to #8
#10 to #2
1
1
X
X
“Y” type
Copper
Set-Screw
#12 to #8
#10 to #2
1
1
X
X
In-Line Watertight Fuseholders
Two-Pole Breakaway
www.littelfuse.com | 800-TEC-FUSE © 2008 Littelfuse • POWR-GARD™ Products
FormNo.PF540
Recommended Fuses
Midget Littelfuse types: BLF, BLN, FLM, FLQ, KLK, KLKD
Class CC Littelfuse types: CCMR, KLDR, KLKR
Insulating Boots
FourWPB3insulatingbootscomestandardwiththeLEXT-YY-SandLEX-YY-C-Sfuseholders.Theyaremoldedfromnon-conductive
engineering grade thermoplastic to deliver a watertight seal in corrosive environments. They can be trimmed to the specific
conductor size insuring a snug fit.
4 9/16"
( ASSEMBLED LENGTH )
11 1/4"
( ASSEMBLED LENGTH )
5 1/8"
( ASSEMBLED LENGTH )