Eaton Crouse-Hinds 2721B Toggle Switch - 15A 277 Vac
Part Number: 2721B
Quick Summary
The Eaton Crouse-Hinds 2721B Toggle Switch is a durable 15A, 277 Vac interior control device designed for Pauluhn panels and instrument enclosures. Engineers often struggle with space constraints, inconsistent operation, and downtime when selecting replacements; this brass surface-mount switch mitigates those risks with a compact footprint. In terms of reliability and compliance, the 2721B aligns with ordinary/non-hazardous location use and leverages proven Pauluhn design principles to deliver long service life. By combining a robust brass body, dual two three-way switches, and straightforward surface mounting, it supports faster installation, better panel density, and lower maintenance costs—critical for safety and uptime. This page summarizes key specs and installation resources to help procurement and engineering teams specify confidently.
Product Information
Extended Description
2721B Eaton Crouse-Hinds: Eaton Crouse-Hinds series Pauluhn 27S toggle switch, 15A, Brass, Surface mount, Two three-way switches, 277 Vac
Product Name
Eaton Crouse-Hinds series Pauluhn 27S toggle switch
Catalog Number
2721B
Product Length/Depth
2.75 in
Product Height
4.5 in
Product Width
1.75 in
Product Weight
2.1 lb
UPC
662276381834
Area classification
Ordinary/Non-Hazardous Locations
Material
Brass
Type
Two three-way switches
Amperage Rating
15A
Voltage rating
277 Vac
Mounting style
Surface
Pauluhn Interior Toggle Switch catalog page
IF LBL 1557 - 27/27B Receptacles and Switches
Eaton Specification Sheet - 2721B
Feature: Amperage and voltage rating — The 2721B is rated for 15A at 277 Vac, providing headroom for typical control circuits. Business impact: engineers can select a single, common device without oversizing or risking nuisance trips. Application: interior panels and instrument enclosures in ordinary location environments benefit from this reliable rating. Feature: Dual three-way switching — The two three-way switches enable multi-location control, reducing wiring complexity and improving operator flexibility. Business impact: faster commissioning, simpler maintenance, and enhanced safety by avoiding single-point control failures. Application: Pauluhn interior toggle switch integrations in industrial control panels. Feature: Brass construction — Brass offers durability and corrosion resistance in standard panel environments. Business impact: longer service life, lower replacement costs, and better resistance to wear at switch contact interfaces. Application: interior switches exposed to routine handling in non-hazardous locations. Feature: Surface mounting — Surface mounting simplifies retrofits and on-site installation, saving enclosure depth and backbox requirements. Business impact: shorter installation times and improved panel density. Application: quick upgrades in existing Pauluhn switch lines. Feature: Compact footprint and dimensions — With a 2.75 in length, 4.5 in height, 1.75 in width and 2.1 lb weight, the 2721B fits tighter control panels without compromising visibility or reach. Business impact: higher panel density, reduced labor, and predictable mounting clearance for service access.
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FAQs
The 2721B is designed for surface mounting, providing a straightforward retrofit path for Pauluhn interior panels. Its footprint remains consistent with the Pauluhn 27S family, enabling quick enclosure modifications and minimal backbox requirements. This mounting approach reduces installation complexity and speeds up panel upgrades in busy industrial environments.
The 2721B is rated at 15A and 277 Vac, supporting typical control circuits found in ordinary locations. It features two three-way switches, enabling multi-point control while maintaining a compact, robust brass body. These ratings help ensure reliable operation and reduce the risk of nuisance trips in standard industrial panels.
This switch is suited for interior Pauluhn panel applications in ordinary/non-hazardous locations. It is commonly used in control stations, instrument enclosures, and process panels where a durable, surface-mounted toggle solution with multi-location control is advantageous. Its brass construction and 2.75 in depth support reliable operation in busy industrial environments.
The provided data lists an area classification of Ordinary/Non-Hazardous Locations, indicating suitability for non-hazardous settings. Specific certifications like SIL, CE, or IP ratings are not detailed in the data provided. Users should verify site-specific compliance requirements with their procurement or compliance teams.
Key ROI drivers include surface-mount installation that reduces backbox depth and speeds up commissioning, paired with a compact profile that supports higher panel density. The dual three-way switches simplify wiring and multi-location control, lowering labor costs during installation and future maintenance, while the brass body offers durable, long-term performance in ordinary-location environments.