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Download NA-277 277V to 120V Step Down Transformer
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NA-277 277V to 120V Step Down Transformer Type Project Catalog No. Lamp/Wattage Dimensions PRODUCT DESCRIPTION Nora's step down transformer is an accessory offered to take 277V supply voltage and reduce it to 120V. The transformer is installed by a qualified electrician on a supply junction box before the 120V load. 2-1/4" Features • Allows 120V products to be supplied by higher voltages • Simply mounts to junction box using standard knockout • Dimmable 4-1/4" ELECTRICAL NA-277 Steps 277 volts line voltage down to 120 volts. Attaches to knockout on first fixture's junction box in a circuit and is 300VA, 150VA or 50VA rated. NA-277 is a UL Recognized component. To calculate usable load, de-rated by 25%. Dimming - Primary Side Dimming on the primary side must be done with a 277V low voltage magnetic dimmer. Dimming - Secondary Side Dimming on the secondary side (120V) must be done with a recommended compatible dimmer for the secondary load type. Minimum Clearance Must be a minimum of 3" from thermal insulation and 1/2" from adjacent building components Width: 4-1/4" Height:2-1/4" DIMMER WIRING DIAGRAM Transformer with Dimmer / Switch on Secondary (Use recommended compatible dimmer for secondary load.) Sample Wiring Diagram for Nora LED Diamond series 120V Electronic Low Voltage Dimmer or Switch Transformer Hot Labels and Listings UL Recognized Hot 277V 120V LED LED LED Neutral Neutral Dimmer Neutral Connection only with Electronic Low Voltage Dimmers Ground Transformer with Dimmer / Switch on Primary Sample Wiring Diagram for Nora LED Diamond series 277V Dimmer or Switch (Magnetic Low Voltage Dimmer) Transformer Hot Hot 120V 277V Neutral LEDL ED LED Neutral Ground Dimmer or Switch may be on the Primary (277V) OR Secondary (120V) side of the transformer. 277V to 120V Step Down Transformer NA-277/300: 300W 277V/120V Step Down Transformer NA-277/150: 150W 277V/120V Step Down Transformer NA-277/100: 100W 277V/120V Step Down Transformer NA-277/50: 50W 277V/120V Step Down Transformer 6505 Gayhart St., Commerce, CA 90040 www.noralighting.com • Specifications subject to change without notice. © 2012 Phone: 800.686.6672 • FAX: 800.500.9955 • e-mail: [email protected] Page 1 of 1