Eaton L520CWBK Watertight Locking Connector - IP67
Part Number: L520CWBK
Quick Summary
Eaton L520CWBK watertight locking connector secures industrial power circuits in wet environments. It eliminates ingress and loose connections that cause downtime in outdoor or harsh process settings. With RoHS compliance, cULus listing, and IP67 protection, it meets harsh-environment standards for industrial wiring. For installers, this model simplifies back-wiring and field wiring with a robust two-pole, L5-20 configuration, enhancing throughput and reliability. Durable materials and Santoprene elastomer provide chemical and temperature resilience for long service life. Designed to meet industrial safety and performance standards, it supports efficient maintenance and compliant installations across OEMs. Its IP67 rating ensures reliability in washdown environments and outdoor installations.
Product Information
Extended Description
L520CWBK Eaton: Eaton Arrow Hart watertight locking connector, #18-10 AWG, 20A, Industrial, 125V, Back wiring, Black, Steel, Watertight, L5-20, Two-pole, Three-wire, Santoprene thermoplastic elastomeric, 0.36 to 0.84 in, IP67
Product Name
Eaton Arrow Hart watertight locking connector
Catalog Number
L520CWBK
UPC
032664709487
Product Length/Depth
6.38 in
Product Height
3.82 in
Product Width
4.4 in
Product Weight
1.025 lb
Compliances
RoHS Compliant
Certifications
cULus Listed NOM
Amperage Rating
20A
Degree of protection
IP67
NEMA configuration
L5-20
Number Of Poles
Two-pole
Number of wires
Grounding 3
Torque rating
14-16 lbf-inch
Voltage rating
125 V
Environmental resistance
NEMA 6P NEMA 4X NEMA 6 IP67 NEMA 4
Allowable wire size
#18-10 AWG
Wiring method
Back
Color
Black
Contact material
Nickel plated brass
Application
Industrial
Cord diameter
0.36-0.84 in
Design type
Watertight locking connector
Device grade
Extra heavy-duty industrial specification grade
Face/body material
Nylon
Material
Santoprene thermoplastic elastomeric
Special features
Watertight
Type
Locking connector
Watertight locking design with IP67 protection blocks moisture ingress and resists washdown exposure, reducing field failures. It combines a back-wiring method with an L5-20 two-pole, 20A, 125V circuit path to simplify termination and ensure stable connections in vibration-prone equipment. This combination reduces rework and warranty returns, particularly in conveyors, pumps, and outdoor machines, lowering downtime and service costs. Nickel-plated brass contacts deliver reliable conductivity and oxidation resistance, while a nylon body and Santoprene elastomer seal provide chemical and temperature resilience, translating to longer service life in demanding environments. Compatible with #18-10 AWG conductors and 0.36-0.84 in cord diameters, the unit supports robust field terminations. Environmental rating covers NEMA 6P, 4X, 6, IP67, enabling installation in harsh settings without extra enclosures. RoHS-compliant design and cULus NOM listing help meet regulatory requirements across NA operations. With back wiring and three-wire grounding, it enhances safety and supports code-compliant installations on a wide range of industrial equipment. The compact footprint—6.38 in length, 3.82 in height, 4.4 in width—and a weight of 1.025 lb ease mounting on standard panels and accessories, streamlining installation in OEM or retrofit projects.
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FAQs
Power must be OFF before installation. Terminate #18–10 AWG conductors using the back-wiring method specified for the L5-20 two-pole, 20A, 125V configuration. Ensure conductors are properly seated and secured to meet the 14–16 in-lbf torque rating. Verify polarity and conduct a continuity check after installation to ensure a safe, low-resistance connection suitable for 125 V systems.
The L520CWBK employs a Santoprene elastomer seal, a nylon body, and nickel-plated brass contacts to resist moisture, chemicals, and temperature swings. Its IP67 rating combined with NEMA 6P/4X/6 compatibility enables reliable performance in washdown zones, outdoor installations, and harsh production lines without additional enclosures, reducing maintenance cycles and exposure risk.
Yes, the L520CWBK is designed for #18-10 AWG conductors. It supports a cord diameter range of 0.36 to 0.84 inches and uses a back-wiring method for field terminations. This combination enables secure, code-compliant connections while maintaining robust current capability at 20A and 125V.
The L520CWBK is RoHS compliant and cULus Listed NOM, providing regulatory alignment for North American operations. It features IP67 protection and environmental resistance per NEMA classifications (6P, 4X, 6, and 4), ensuring suitability for rugged industrial installations and compliant integration with other equipment.
The L520CWBK offers improved reliability through a watertight locking design and robust contacts, reducing downtime and maintenance costs. Back-wiring speeds terminations and lowers field labor costs. With IP67/NEMA protections, it minimizes enclosure needs, supporting longer service life and regulatory compliance, which translates to lower total cost of ownership across OEM and retrofit projects.