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2 hour timing for Title 24 and IECC (default). 4 hour timing for ASHRAE 90.1 (with quick dip switch adjustment). Scroll Lock limits user adjustment to a maximum equal to the preset time. Tamper resistant wall plate locks access to dip switch adjustments. Unit has a backlit LCD Display. Color is white (single gang decorator wall plate included). There is no neutral required. Input voltage is 120/230/277 VAC 50/60 Hz

NSI TORK&reg; SS403 Interval Wall Timer, 24 Hour Maximum, No Neutral, 3-Way, 15A, 120-277V, White

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