The Intermatic FM1D50A-24 is a heavy-duty 24-hour/7-day electronic timer module engineered for precise control in commercial HVACR and lighting applications. Operating on 24VAC/VDC, this 1-channel surface mount timer offers 50 memory spaces for daily or weekly scheduling. Its SPDT changeover contact is rated for 21 Amps, making it a reliable solution for high-current loads, including fan motor control and industrial automation. The quartz drive ensures high accuracy, while the internal Supercapacitor power backup maintains programming for up to 2,500 hours during power outages without requiring battery replacements. Professionals favor this unit for its versatile manual override capabilities and easy-to-read LCD, facilitating rapid field configuration. Its DIN rail or surface mounting options provide flexibility for control panel upgrades or standalone installations in demanding environments. Key Benefits for Contractors High Amperage Capacity: Rated for up to 21A, handling heavy inductive loads without the need for additional contactors in many configurations. Flexible Scheduling: Supports both 24-hour and 7-day programming with up to 50 set points for complex cycling requirements. Permanent Memory: The non-volatile memory and Supercap backup protect settings against frequent power fluctuations or site outages. Universal Logic: Features SPDT (Single Pole Double Throw) switching, allowing for both normally open and normally closed operations. Common Installation & Application Questions What is the minimum switching time for the FM1D50A-24? The minimum switching interval is 1 minute, allowing for precise control of equipment cycles. Can this timer be used for both AC and DC applications? Yes, the Intermatic FM1D50A-24 is rated for both 24VAC and 24VDC input voltages, providing versatility across different control circuits. Does this unit require a battery replacement? No, it utilizes a Supercapacitor to maintain the real-time clock and program memory, eliminating the maintenance associated with traditional batteries. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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