Eaton CWL1620PBK-BU Locking Plug - cULus Listed
Part Number: CWL1620PBK-BU
Quick Summary
Eaton Arrow Hart ultra grip locking plug provides secure 3‑phase connections for industrial 480V systems. This locking plug design helps prevent accidental disconnections in harsh manufacturing environments, reducing downtime and safety risks. It carries RoHS compliance and cULus listing, two critical validations that support regulatory adherence and reliability in demanding facilities. By combining rugged nylon construction with a back‑wired, four‑wire configuration, this plug delivers dependable power distribution while simplifying field installation and maintenance for use with L16-20 systems and industrial equipment.
Product Information
Extended Description
CWL1620PBK-BU Eaton: Eaton Arrow Hart ultra grip locking plug, Bulk-pack, 20A, Industrial, 480V, Black, L16-20, Three-pole, Four-wire
Product Name
Eaton Arrow Hart ultra grip locking plug
Catalog Number
CWL1620PBK-BU
UPC
032664673931
Product Length/Depth
17 in
Product Height
10 in
Product Width
8.75 in
Product Weight
16.875 lb
Compliances
RoHS Compliant
Certifications
cULus Listed
Special features
Bulk-pack
Type
Locking plug
Amperage Rating
20A
Voltage rating
3Ø 480 V
Contact material
Brass
Application
Industrial
Device grade
Extra heavy-duty industrial specification grade
Wiring method
Back
Number of wires
4 Grounding
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
L16-20
Design type
Ultra grip
Face/body material
Nylon
Wiring Devices Buyer’s Guide
Arrow Hart - Connecting Safety to Reliability since 1890
Eaton Specification Sheet - CWL1620PBK-BU
Feature: Ultra grip locking mechanism delivers a positive locking connection that resists vibration and pulls loose under heavy equipment operation. Business Impact: Reduces unplanned outages and safeguards personnel when machines resume operations after maintenance. Application: Ideal for conveyors, pumps, and material handling equipment in demanding industrial environments. Feature: 20A current rating at 480V three‑phase with four-wire configuration. Business Impact: Supports high‑power equipment and motor drives while maintaining safe load distribution. Application: Suitable for L16-20 powered drives, CNCs, and large pumps. Feature: Back wiring method with #16-8 AWG conductors and 0.38–1.16 in cord diameter range. Business Impact: Speeds installation and enables flexible cord options, reducing wiring time on site. Application: Field terminations in control panels and power distribution enclosures. Feature: Nylon body and face construction with wide operating temperature range (-40 to 60 °C). Business Impact: Excellent chemical and impact resistance, extended service life in hot/cold plant environments. Application: Outdoor and indoor industrial installations, harsh‑environment facilities. Feature: Bulk-pack bulk‑pack packaging option. Business Impact: Lower logistics costs and easier inventory management for distributors and large facilities. Application: Stocking in maintenance depots and job-sites needing quick replacement parts.
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FAQs
CWL1620PBK-BU is a three‑pole, four‑wire locking plug designed for L16-20 configurations. It uses back‑wired terminations suitable for #16‑8 AWG conductors and accepts a 0.38‑1.16 inch cord diameter, enabling reliable mating with standard L16‑20 receptacles in industrial power distribution.
The ultra grip design provides a positive, vibration‑resistant lock that prevents accidental disconnections during machine start‑ups or heavy operation. This reduces downtime, improves operator safety, and ensures consistent power delivery to critical equipment such as pumps and conveyors in manufacturing lines.
Yes. The plug is rated for 20A at 480V in a three‑phase, four‑wire configuration (L16-20), making it appropriate for motor drives, pumps, and other three‑phase equipment commonly found in industrial facilities.
The CWL1620PBK-BU carries cULus listing and RoHS compliance, providing UL‑listed safety certification and restricted materials compliance. These certifications support regulatory requirements and help ensure safe, reliable operation in industrial environments.
Plan for back‑wire terminations using #16‑8 AWG conductors and ensure cord diameters fall within 0.38–1.16 inches. The nylon body resists impact and chemicals, while operating from -40 to 60 °C, enabling flexible placement in harsh environments. Verify compatibility with L16-20 receptacles and typical control panel layouts to optimize wiring routes.