Eaton Crouse-Hinds 2721AF Toggle Switch - Copper-free Al
Part Number: 2721AF
Quick Summary
Eaton Crouse-Hinds 2721AF toggle switch is a rugged control device that provides two three-way switching in flush-mounted panels for 277 Vac applications. Engineers often struggle with reliable, easy-to-install switches that resist corrosion and fit standard enclosures, and this model addresses those challenges with a copper-free aluminum body and a compact, space-saving footprint. The unit is associated with area classifications for Ordinary/Non-Hazardous Locations, aligning with common safety and installation practices in non-hazardous environments. For procurement and maintenance, it offers straightforward documentation and predictable performance, supporting efficiency gains in panel assembly and field serviceability through standard wiring and mounting practices.
Product Information
Extended Description
2721AF Eaton Crouse-Hinds: Eaton Crouse-Hinds series Pauluhn 27S toggle switch, 15A, Copper-free aluminum, Flush mount, Two three-way switches, 277 Vac
Product Name
Eaton Crouse-Hinds series Pauluhn 27S toggle switch
Catalog Number
2721AF
Product Length/Depth
2.75 in
Product Height
4.5 in
Product Width
1.75 in
Product Weight
0.8 lb
UPC
662276381827
Area classification
Ordinary/Non-Hazardous Locations
Material
Copper-free aluminum
Type
Two three-way switches
Amperage Rating
15A
Voltage rating
277 Vac
Mounting style
Flush
Pauluhn Interior Toggle Switch catalog page
IF LBL 1557 - 27/27B Receptacles and Switches
Eaton Specification Sheet - 2721AF
Feature copper-free aluminum construction → Business Impact reduces weight and corrosion risk, improving lifecycle reliability in panel installations → Application ideal for control panels in ordinary locations where environmental exposure is low but reliability is critical. Feature two three-way switches → Business Impact enables flexible wiring schemes and centralized control logic, reducing wiring complexity and panel space usage → Application suitable for multi-point control in machine enclosures and process panels. Feature 15A, 277 Vac rating → Business Impact supports common industrial circuits with safe overload margins, improving uptime and protecting circuits from overloads → Application across motor control and non-high-power control circuits in automation systems. Feature flush mounting → Business Impact delivers a low-profile panel appearance and easier enclosure fit, reducing panel cutout errors and mounting time → Application in compact control panels and instrument enclosures where space is at a premium. Feature documented specifications and standard compatibility → Business Impact accelerates sourcing and installation through accessible catalogs and datasheets, reducing procurement delays and variation in field installs → Application across industrial automation projects that require consistent, repeatable components. Industry-context note: the Pauluhn interior toggle switch family is widely used for robust, reliable interlock and control in harsh factory environments, making 2721AF a predictable choice for system integrators seeking standardization and reduced maintenance.
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FAQs
Install the 2721AF in standard panel cutouts sized for flush mounting, ensuring a 2.75 in depth clearance and compatible enclosure opening. Verify cabinet clearance around the 4.5 in height and 1.75 in width to prevent interference. Follow the IF LBL 1557 instructions for receptacles and switches, and use proper torque on mounting screws to avoid distortion.
Yes. The 2721AF is rated at 15A and 277 Vac, and its design supports two three-way switch configurations, allowing flexible control schemes in control panels and machine enclosures without additional hardware.
Copper-free aluminum offers corrosion resistance and lighter weight, which translates to longer service intervals and easier handling during installation. In ordinary/non-hazardous locations, this material choice reduces maintenance needs and minimizes the risk of corrosion-related failures in typical factory environments.
Documentation includes the Pauluhn Interior Toggle Switch catalog page, the IF LBL 1557 installation instructions, and the Eaton Specification Sheet for 2721AF. These resources provide wiring guidance, mounting details, and electrical ratings to support procurement, installation, and compliance checks.
The 2721AF is designed for flush-mount installation in standard electrical panels and control enclosures used in ordinary locations. It is compatible with panels that accommodate two three-way switches and standard 15A, 277 Vac circuits, enabling consistent integration with automation panels and control cabinets.