Eaton QLK50S Quick-Lok Connector - AC/MC & FMC
Part Number: QLK50S
Quick Summary
Eaton QLK50S Quick-Lok Connector is a rugged steel terminal designed for secure termination of AC/MC and FMC cables in industrial wiring. Engineers often confront slow installations, inconsistent seals, and part proliferation in control panels. This connector aligns with NEC/CEC standards and supports Ordinary/Non-Hazardous locations, with UL certification documentation available through Eaton’s catalogs and datasheets. By combining a compact 1/2 in trade size with a versatile 0.385–0.600 in cable opening, it streamlines assembly while delivering durable, compliance-ready performance for panel builders and machine integrators. In short, it delivers reliable, repeatable connections that reduce rework and total cost of ownership.
Product Information
Extended Description
QLK50S Eaton: Eaton Crouse-Hinds series Quick-Lok QLK connector, 0.385-0.600" cable opening, AC/MC and FMC, Single, Steel, 1/2"
Product Name
Eaton Crouse-Hinds series Quick-Lok QLK connector
Catalog Number
QLK50S
UPC
784564000880
Product Length/Depth
1.44 in
Product Height
0.88 in
Product Width
0.88 in
Product Weight
0.08 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
AC/MC and FMC
Connector type
Single
Material
Steel
Cable opening (min/max)
0.385-0.600 in
Trade size
1/2"
Crouse-Hinds series Quick-Lok Connectors - AC/MC and FMC catalog page
Quick-Lok Connectors - AC/MC and FMC UL certification
Quick-Lok Connectors - AC/MC and FMC UL certification
Eaton Specification Sheet - QLK50S
Cable opening range 0.385-0.600 in provides broad compatibility with AC/MC and FMC cables, reducing the need for adapters and inventory. Business impact: faster wiring, fewer part substitutions, and lower labor costs in panel assembly and field installations. Application: panel enclosures, control cabinets, and machine wiring where Quick-Lok reliability matters. Steel construction delivers mechanical robustness that withstands industrial environments, improving long-term reliability and reducing maintenance exposures. Business impact: fewer conduit-related failures and less downtime. Application: harsh factory floors and machine rooms where durability matters. Trade size of 1/2 inch standardizes fittings across assemblies, enabling streamlined procurement and repeatable installations. Business impact: simplified training and faster commissioning. Application: generic conduit systems and utility panels. NEC/CEC compliance and Ordinary/Non-Hazardous location suitability provide regulatory alignment, while UL documentation supports procurement confidence. Business impact: regulatory peace of mind and safer, audit-ready wiring. Application: certified control panels and systems. Comprehensive documentation, including Eaton spec sheets and catalog pages, supports quick design integration and reduced engineering effort. Business impact: accelerated project timelines and consistent installation practices. Application: engineering design reviews and field retrofits.
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FAQs
The QLK50S accepts 0.385-0.600 in cables and is designed for single, steel Quick-Lok termination. To install, align the connector with the cable bundle, insert within the 1/2" trade size conduit opening, and secure with standard mounting practices. Ensure the cable opening is within the specified range for a proper seal and mechanical fit.
You can expect a robust steel body providing mechanical strength with reliable termination for AC/MC and FMC cables. The connector is rated for ordinary/non-hazardous locations under NEC/CEC standards, offering consistent sealing and reduced field rework, improving uptime in panel wiring and machine enclosures.
Yes. The QLK50S is specifically designed for AC/MC and FMC applications in industrial control panels and machine wiring. Its 1/2" trade size and 0.385-0.600 in cable opening support typical conduit configurations, enabling quick, reliable terminations with standard hardware.
The QLK50S aligns with NEC/CEC standards and is suitable for Ordinary/Non-Hazardous locations. UL certification documentation is available, supporting regulatory compliance and procurement confidence when designing or upgrading electrical enclosures and control panels.
Benefits include faster installation due to a simplified, single-connector design, reduced inventory from broad cable compatibility, and improved reliability from steel construction. Combined, these factors shorten commissioning timelines and lower maintenance costs in ongoing operations.