Eaton L1120CWBK Watertight Locking Connector - IP67
Part Number: L1120CWBK
Quick Summary
The Eaton Arrow Hart watertight locking connector is designed for rugged industrial power distribution in harsh environments. In many facilities, moisture, dust, and washdowns threaten connections, causing downtime and safety concerns. With IP67 protection, RoHS compliance, and cULus listing, it meets rigorous industrial standards while delivering reliability. For project teams, this locking connector reduces wiring time, supports back wiring with #18-10 AWG, and ensures safe, durable power delivery in harsh environments. The connector's durable materials, including nickel-plated brass contacts and Santoprene sealing, minimize maintenance and extend service life. By standardizing on this model, teams can streamline procurement, reduce spare parts, and improve equipment uptime.
Product Information
Extended Description
L1120CWBK Eaton: Eaton Arrow Hart watertight locking connector, #18-10 AWG, 20A, Industrial, 250V, Back wiring, Black, Steel, Watertight, L11-20, Three-pole, Three-wire, Santoprene thermoplastic elastomeric, 0.43 to 1.15 in, IP67
Product Name
Eaton Arrow Hart watertight locking connector
Catalog Number
L1120CWBK
UPC
032664708855
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
L11-20
Number Of Poles
Three-pole
Number of wires
3 Non-grounding
Voltage rating
3Ø 250 V
Environmental resistance
NEMA 6 IP67 NEMA 4 NEMA 6P NEMA 4X
Allowable wire size
#18-10 AWG
Wiring method
Back
Color
Black
Contact material
Nickel plated brass
Application
Industrial
Cord diameter
0.43-1.15 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
Rugged watertight design delivers reliable performance in challenging environments. Its IP67 and NEMA protection ratings guard against water, dust, and washdowns, minimizing unplanned downtime while maintaining electrical integrity across industrial equipment. The combination of a nylon face/body and Santoprene elastomeric seal ensures long-term sealing performance, reducing gasket failure and maintenance costs. This connector supports back wiring with #18-10 AWG, simplifying field installations and lowering labor time during commissioning. With three-pole, three-wire L11-20 configuration, it provides a safe, compliant three-phase connection for 250 V systems, improving overall plant safety and system reliability. Nickel-plated brass contacts offer low resistance and corrosion resistance, enhancing contact life in demanding environments. The extra heavy-duty device class aligns with industrial practices, supporting harsh service conditions and frequent mate/demate cycles. This model's compatibility with back-wiring workflows helps standardize assemblies and reduce part variety, delivering meaningful total cost of ownership improvements for maintenance teams and OEMs. In practice, engineers report faster wiring, fewer call-backs for waterproofing, and improved uptime in outdoor, washdown, and rugged production lines.
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FAQs
The L1120CWBK is configured for NEMA L11-20 (three-pole, three-wire) operation with a back wiring method. It accepts #18-10 AWG conductors, enabling straightforward field terminations. This combination supports safe, code-compliant three-phase power delivery at 250 V and 20 A, reducing installation time and error potential while maintaining robust mechanical and electrical integrity in industrial environments.
Performance in wet environments is protected by IP67 enclosure integrity plus comprehensive environmental ratings (NEMA 6, 4X, 6P). The Santoprene elastomer seal and Nylon body provide a durable, waterproof barrier, while nickel-plated brass contacts resist corrosion. Together, these features minimize ingress of water and contaminants, sustaining reliable connections during outdoor or washdown cycles.
Yes. The L1120CWBK is RoHS compliant and cULus Listed NOM, aligning with North American safety and environmental standards. This ensures regulatory compliance for industrial installations, supports safe maintenance practices, and simplifies procurement for projects requiring established certifications.
The assembled unit measures approximately 6.38 in in length, 3.82 in in height, and 4.4 in in width, with a weight around 1.025 lb. This footprint is suitable for panel or enclosure mounting alongside related power components, while the locking mechanism provides secure mating to resist vibration and inadvertent disengagement in demanding installations.
Durable materials (nickel-plated brass contacts, Santoprene seals, nylon body) reduce wear and corrosion, lowering maintenance frequency and part replacement. The rugged design supports extended service life in harsh environments, translates to fewer downtime incidents, and lowers total cost of ownership for OEMs and maintenance teams through predictable performance and fewer field failures.