The Johnson Controls C-7355-7 is a trade-grade 120V SPDT timer designed for reliable automated control in commercial and residential HVACR systems. Built with a robust synchronous drive motor, this electromechanical 7-day time clock provides consistent performance for managing motors, pumps, and lighting circuits. It features a single-channel configuration capable of handling up to 84 events per week, allowing for 12 distinct on/off cycles per day to optimize energy efficiency and equipment lifespan. For field technicians, the 2-hour shortest switching time and high-accuracy movement (within ± 24 minutes per year) ensure that system schedules remain precise under standard operating conditions. This HVAC timer switch is engineered for versatility, supporting both surface mounting and 35 mm DIN rail installation to fit various control cabinet configurations. The heavy-duty SPDT contacts are rated for 21A resistive at 240 VAC, making it a rugged choice for switching line voltage loads without the need for auxiliary relays in most applications. A manual 3-way override switch is integrated into the face, allowing contractors to toggle between permanent On, permanent Off, or automatic operation during system testing or maintenance. Its transparent cover protects the captive trippers from accidental adjustment while maintaining clear visibility of the current schedule. High-Capacity Scheduling: Supports up to 84 weekly events with easy-to-set captive trippers for comprehensive 24-hour time switch control. Durable Drive System: Utilizes a synchronous drive motor for steady timing accuracy in 60 Hz environments. Flexible Mounting: Compatible with standard 35 mm DIN rail or flat surface mounting for fast field integration. Heavy-Duty Switching: Features an SPDT contact arrangement rated at 21 Amps to handle demanding electrical loads. Field Override: Includes a manual 3-position switch to simplify troubleshooting and bypass schedules when necessary. Common Questions: How do I set the schedule on this electromechanical timer? The dial represents a 7-day week. To program an "On" event, push the captive trippers to the outer ring for the desired time duration. Each tripper represents a 2-hour block. Does the C-7355-7 have a battery backup? No, the C-7355-7 uses a synchronous motor and requires constant 120 VAC power. If power is lost, the clock must be manually reset to the current time and day once power is restored. For applications requiring a battery reserve, consider the quartz-stabilized C-7355-8. What is the maximum electrical load this timer can switch? The integrated SPDT switch is rated for a maximum of 21 Amps resistive at 240 VAC, making it suitable for direct control of most HVAC fans, pumps, and light-duty motors. 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.
