Eaton AHL1420CBK Locking Connector - Ultra Grip, cULus
Part Number: AHL1420CBK
Quick Summary
Eaton AHL1420CBK locking connector delivers secure industrial power connections for equipment in demanding environments. Maintenance teams often battle vibration, loose contacts, and messy terminations that drive downtime. This model supports RoHS compliance and cULus listing while delivering reliable performance at 125/250 V and 20 A. Back wiring and rugged nylon construction simplify installations, reduce field errors, and extend service life—critical for OEMs and facilities managers seeking uptime and cost savings. With L14-20 configuration and UL-sanctioned safety features, this locking connector is a dependable choice for industrial power distribution.
Product Information
Extended Description
AHL1420CBK Eaton: Eaton Arrow Hart ultra grip locking connector, #14-8 AWG, 20A, Industrial, 125/250V, Back wiring, Black, Ultra grip, L14-20, Three-pole, Four-wire, Nylon
Product Name
Eaton Arrow Hart ultra grip Locking connector
Catalog Number
AHL1420CBK
UPC
032664737909
Product Length/Depth
4.19 in
Product Height
2.31 in
Product Width
2.28 in
Product Weight
0.45 lb
Compliances
RoHS Compliant
Certifications
cULus Listed NOM
Special features
Ultra grip locking connector
Type
Locking connector
Amperage Rating
20A
Voltage rating
125/250 V
Contact material
Brass
Application
Industrial
Device grade
Extra heavy-duty industrial specification grade
Wiring method
Back
Number of wires
Grounding 4
Number Of Poles
Three-pole
Color
Black
Cord diameter
0.38-1.16 in (9.5-29.4 mm)
Material
Nylon
Operating temperature
-40 to 60 °C (-40 to 140 °F)
Allowable wire size
#16-8 AWG
NEMA configuration
L14-20
Torque rating
For #10-14 AWG: 14-16 lbf-inch. For #8 AWG: 20 lbf-inch
Design type
Ultra grip
Face/body material
Nylon
Arrow Hart - Connecting Safety to Reliability since 1890
Industrial grade L14-20 locking devices spec sheet
Industrial grade L14-20 locking devices spec sheet
Ultra grip locking design improves connection security even in high-vibration environments, reducing nuisance disconnections and maintenance costs. Feature → Business Impact → Application: For conveyor lines and heavy machinery, the locking mechanism translates to fewer unplanned shutdowns, enhancing overall productivity and safety in manufacturing facilities. The 20A, 125/250 V rating covers a wide range of industrial loads, enabling one part to serve motors, pumps, and control circuits without compromise. Feature → Business Impact → Application: Back wiring with four conductors simplifies field terminations, lowers assembly time, and minimizes wiring errors in panel installations. Feature → Business Impact → Application: Nylon body and brass contacts resist impact, heat, and chemicals, extending service life in challenging environments like food processing, chemical plants, and logistics hubs. Feature → Business Impact → Application: The L14-20 configuration provides clear, standardized electrical interfaces, improving compatibility with existing power distribution layouts and reducing retrofit costs. Feature → Business Impact → Application: Torque specifications for #10-14 AWG and #8 AWG wires guide installers to secure terminations, improving reliability and compliance. Feature → Business Impact → Application: RoHS compliance and cULus listing ensure regulatory alignment, enabling safer procurement and smoother audits for OEMs and maintenance teams.
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FAQs
For back-wiring, prepare the panel opening for an L14-20 connector, trim conductors to the required length, and insert wires into the back-wire terminals following the torque guidance. Tighten to spec for #10-14 AWG and #8 AWG as indicated, ensuring full strand engagement and secure locking to prevent vibration-induced loosening.
The AHL1420CBK is rated for 20A at 125/250V and supports back wiring with allowable wire sizes #16-8 AWG. It is designed for three-pole four-wire configurations (L14-20) and accommodates a cord diameter range of 0.38-1.16 inches, enabling flexible field terminations.
Yes. The Ultra Grip locking mechanism provides secure connections that resist loosening under vibration. The nylon body and brass contacts are built for durability, with an operating temperature range of -40 to 60 °C, making it suitable for harsh environments like automated facilities and material handling systems.
The AHL1420CBK carries RoHS compliance and cULus listing, ensuring regulatory alignment for European and North American markets. These certifications support safer procurement, easier compliance audits, and reliability in regulated industrial applications.
Benefits include reduced downtime from secure connections, lower maintenance costs due to vibration resistance, and faster field installations thanks to back-wiring design. The connector also supports standard L14-20 configurations, improving compatibility with existing power-distribution schemes and contributing to a stronger total cost of ownership.