Description
Ensure reliable, programmable defrost scheduling for refrigeration systems with the DTAV40 — a versatile electromechanical defrost timer designed for walk-in coolers, freezers, and commercial refrigeration equipment. Built by Intermatic / Grässlin, this timer simplifies maintenance cycles and improves energy efficiency by automating defrost cycles with precision.
Key Features
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Auto-Voltage (120–240 VAC, 60 Hz) — Automatically senses and adjusts for input voltage, eliminating the need for manual voltage selection.
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Programmable Defrost Cycles — Easily set defrost initiation times in 15-minute increments using captive trippers; supports up to 23 hours 45 minutes cycles.
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Heavy-Duty Switching Capacity — 40 A resistive rating, supporting up to 2 HP at 240 VAC (or 1 HP at 120 VAC), making it suitable for compressors, defrost heaters, and commercial refrigeration loads.
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Flexible Termination Options — Defrost cycles can end by timer or via external temperature or pressure switch; timer termination acts as fail-safe if external control fails.
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Rugged, Weather-Resistant Enclosure — Housed in a NEMA 3R rated outdoor-ready enclosure (some models NEMA 1 metallic), suitable for indoor or outdoor installations.
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Easy Installation & Replacement — Mounts in existing enclosures with no special tools required; compatible with many existing refrigeration timer systems (serves as a universal replacement for 40+ competitive models).
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LED Status Indicators — On-board red/green LEDs provide clear visual indication of defrost and refrigeration cycles, aiding maintenance and troubleshooting.






