Eaton AHL520C Locking Connector - Ultra Grip L5-20, cULus Listed
Part Number: AHL520C-GC1
Quick Summary
The AHL520C locking connector by Eaton provides a rugged, back-wired 20A power link for industrial equipment. In harsh environments, unsecured plugs drive costly downtime, and a reliable locking solution is essential. This unit carries RoHS compliance and cULus listing, plus Federal Specifications W-C375, ensuring regulatory alignment and dependable performance. Designed for engineers and procurement teams, it offers easy back-wiring, a durable nylon housing, and compatibility with standard L5-20 devices to streamline installation and reduce total cost of ownership.
Product Information
Extended Description
AHL520C-GC1 Eaton: Eaton Arrow Hart ultra grip locking connector, #14-8 AWG, 20A, Industrial, 125V, Back wiring, Black, white, Ultra grip, L5-20, Two-pole, Three-wire, Nylon
Product Name
Eaton Arrow Hart ultra grip Locking connector
Catalog Number
AHL520C
Product Length/Depth
4.19 in
Product Height
2.31 in
Product Width
2.28 in
Product Weight
0.4 lb
Compliances
RoHS Compliant Federal Specifications Classification W-C375
Certifications
cULus Listed NOM
Special features
Locking receptacle
Type
Locking connector
Amperage Rating
20A
Voltage rating
125 V
Contact material
Brass
Application
Industrial
Device grade
Extra heavy-duty industrial specification grade
Wiring method
Back
Number of wires
Grounding 3
Number Of Poles
Two-pole
Color
Black White
Cord diameter
0.38-1 in (9.5 mm-25.4 mm)
Material
Nylon
Operating temperature
-40 to 60 °C (-40 to 140 °F)
Allowable wire size
#16-8 AWG
NEMA configuration
L5-20
Design type
Ultra grip
Face/body material
Nylon
Arrow Hart - Connecting Safety to Reliability since 1890
Industrial grade L5-20 locking devices spec sheet
Industrial grade L5-20 locking devices spec sheet
Feature is Ultra grip locking mechanism with secure mating; Business Impact is reduces unintended disconnections and downtime in vibration-prone settings; Application is industrial equipment such as motors and conveyors that require a reliable lock during operation. The second feature notes 20A, 125V rating and L5-20 configuration; Business Impact is compatibility with common industrial power circuits and improved safety margins; Application includes panel connections and remote panels in manufacturing lines. The third feature highlights back wiring with #16-8 AWG allowable conductors and cord diameter 0.38-1 in; Business Impact is faster installation, flexible field terminations, and reduced termination errors; Application spans electrical enclosures and power distribution stations. The fourth feature covers nylon housing and wide operating temperature from -40 to 60 °C; Business Impact is enhanced durability and resistance to environmental extremes; Application includes outdoor or damp manufacturing floors. The fifth feature emphasizes RoHS compliance, cULus NOM certifications and W-C375; Business Impact is procurement compliance, regulatory risk reduction, and easier audits; Application is regulated industrial facilities and OEM supply chains. The sixth feature references the device’s two-pole, three-wire configuration and back-wiring method; Business Impact is safe, code-compliant wiring with straightforward field upgrades; Application includes retrofit projects and new equipment installations across heavy industry.
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FAQs
To install the AHL520C in back-wire configuration, power must be disconnected. Prepare conductors within #16-8 AWG, strip appropriately, and insert each conductor into the back-wire terminals per the device diagram. Tighten all terminations to secure the conductors, verify correct polarity, and perform a continuity check. The result is a fast, code-compliant connection with a robust locking mechanism to withstand vibration.
Ultra Grip provides a mechanical interlock that maintains a locked connection despite vibration, movement, or incidental contact. This reduces the risk of unplugging under load, lowers maintenance interruptions, and improves uptime for motors, conveyors, and other dynamic industrial equipment that rely on consistent power delivery.
Yes. The AHL520C is designed for 125V circuits with a 20A rating, using a two-pole, three-wire configuration (L5-20). It supports back wiring and accepts #16-8 AWG conductors, making it suitable for a broad range of industrial equipment, especially where secure, LOCKING connections are required to meet safety standards.
This connector is RoHS compliant and cULus Listed, with NOM and Federal Specifications W-C375 alignment. These certifications support regulatory compliance in many industries, facilitate procurement approvals, and help maintain code-conforming electrical installations across manufacturing and facilities.
The nylon housing and brass contacts provide durability and resistance to wear, while the locking mechanism minimizes unplugging events that cause downtime. Back wiring reduces on-site termination errors, and RoHS/cULus NOM certifications ease audits. Together, these features lower maintenance costs, improve reliability, and shorten payback periods in demanding industrial environments.