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DT323UGK Datasheet(PDF) 2 Page - Dallas Semiconductor |
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DT323UGK Datasheet(HTML) 2 Page - Dallas Semiconductor |
2 / 7 page Double-throw safety switches Eaton’s double-throw safety switches are used to transfer service from a normal power source to an alternate source, or to switch from one load circuit to another. The manually operated double-throw safety switch provides an economical means of transferring power. Eaton offers a full line of general-duty and heavy-duty double-throw safety switches. General-duty Eaton’s general-duty double- throw safety switches are commonly applied in emergency power or generator applications to reduce or eliminate the costly impact of power loss from the typical source in residential, agricultural and light commer- cial markets. All general-duty double-throw safety switches are non-fusible and are available up to 400A. A standby generator connected to a residential wiring system must be installed according to the National Electrical Code.� A double-throw switch must be installed to isolate and discon- nect wiring from normal utility lines so that generator-produced electricity is not back-fed onto normal utility lines. Whether normal electrical service is disrupted by severe weather conditions, accidents or other issues, an Eaton general- duty double-throw safety switch is a critical component in your standby generator applications. Heavy-duty Eaton’s heavy-duty double- throw safety switches are designed for commercial and industrial applications. Fusible switches are available through 600A, while non-fusible switches are manufactured up to 800A. The wiring configuration from the factory allows a single load to be supplied by a normal or alternate source; however, where necessary, the wiring can be field modified to allow two loads to be alternately supplied by a single power source. Heavy-duty double-throw safety switches are designed to accommodate a wide range of accessories that can be factory or field installed. Customized solutions, including key inter- locks, viewing windows and receptacles, are also available through Eaton’s Switching Device Flex Center. Double-throw general-duty non-fusible safety switches DT224URK-NPS Quick-Make, Quick-Break Design, 200A, 240V. Double-throw, 240 Vac general-duty, non-fusible compact design Specifications • 30–100A • Suitable for service entrance use with neutral kit installed • Suitable for use as a manu- ally operated switch per 2005 NEC� Article 702 • UL� listed File No. E5239 Features • Palm-fitting, visible red handle • Tri-lingual nameplate • NEMA� 3R enclosure with side opening door • Visible, embossed ON-OFF indication • Concentric knockouts on bottom endwall and sides • Lockable door hasp • Lockable handle • Three-point mounting • Factory-installed neutral (optional catalog numbers are available without a neutral) • Terminals suitable for 60º or 75ºC Al or Cu wire • Rounded shroud • Mechanical door interlock to prevent easy access when the switch is in the ON position • Suitable for use on a circuit capable of delivering not more than 10,000 rms symmetrical amperes • Compact size Double-throw, 240 Vac general-duty, non-fusible, quick-make, quick-break design Specifications • 30–400A • Horsepower rated • Suitable for service entrance use with neutral kit installed • Suitable for use as a manually operated switch per 2005 NEC Article 702 • UL listed File No. E5239 • Quick-make, quick-break operating mechanism Features • Palm-fitting, visible red handle • Tri-lingual nameplate • NEMA 3R enclosure with side opening door • Visible, embossed red ON-OFF indication • Tangential knockouts (30–100A) on bottom end- wall; concentric knockouts on higher ratings, and sides and rear of 30–100A • Lockable door hasp • Lockable handle • Factory-installed neutral (optional catalog numbers are available without a neutral) • Three-point mounting (30–100A) • Four-point mounting (200–400A) • Terminals suitable for 60º or 75ºC Al or Cu wire on 30–100A; 75ºC Al or Cu wire on higher ratings • Rounded shroud • Door cannot be opened with the switch ON. Switch cannot be turned ON with door open (without operating interlock defeater) • Suitable for use on a circuit capable of delivering not more than 100,000 rms symmetrical amperes when protected by Class R or J fuses (30–200A); R, T or J fuses (400A). Short-circuit rating is 10,000 rms symmetrical amperes when protected by any other overcurrent protective device • Double-break visible rotary blades; quick-make, quick- break operation Double-Throw Compact Design Ampere Rating Main and Standby NEMA 3R Enclosure Rainproof Catalog Number Non-Fusible Two-Pole—240 Vac 30 60 100 DT221URH DT222URH DT223URH Non-Fusible Two-Pole, Three-Wire—240 Vac—Solid Neutral 30 60 100 DT221URH-N DT222URH-N DT223URH-N Double-Throw Quick-Make, Quick-Break Design Ampere Rating Main and Standby Maximum Horsepower Ratings NEMA 3R Enclosure Rainproof Single-Phase 240 Vac 250 Vdc Catalog Number Non-Fusible Two-Pole—240 Vac—250 Vdc 30 60 100 200 400 3 10 20 15 — 5 10 20 40 50 DT221URKPS DT222URKPS DT223URKPS DT224URKPS DT225URKPS Non-Fusible Two-Pole, Three-Wire—240 Vac—250 Vdc—Solid Neutral 30 60 100 200 400 3 10 20 15 — 5 10 20 40 50 DT221URK-NPS DT222URK-NPS DT223URK-NPS DT224URK-NPS DT225URK-NPS ON OFF ON ON OFF ON S/N Non-Fusible Two-Pole Two Sources or Two Loads ON OFF ON ON OFF ON S/N Non-Fusible Two-Pole with Neutral Two Sources or Two Loads DT223URH-N Compact Design, 100A, 240V ON OFF ON ON OFF ON S/N Non-Fusible Two-Pole Two Sources or Two Loads ON OFF ON ON OFF ON S/N Non-Fusible Two-Pole with Neutral Two Sources or Two Loads 2 EATON CORPORATION Double-throw safety switch 3 EATON CORPORATION Double-throw safety switch |
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