Intermatic FM/1STUZH-24U Timer

For contractors requiring precise scheduling in demanding environments, the Intermatic FM/1STUZH-24U offers a professional-grade solution for 24-hour equipment cycling. This 24V electromechanical timer module is specifically engineered for panel mounting within machine control circuits, HVAC units, or refrigeration systems. Featuring a high-capacity 21A SPDT switch, it manages heavy electrical loads including motors up to 2 HP at 250 VAC. The integrated quartz drive with carryover ensures that your programmed schedules remain intact during power interruptions, utilizing a 72-hour battery backup for continuous timekeeping. With 96 captive trippers, you can set 15-minute switching intervals across a true clock face, allowing for granular control of aeration systems, ventilation fans, or generator exercising. Its noise-immune design makes it exceptionally stable for robust industrial applications where electrical interference is common. This module utilizes standard 1/4-inch quick-connect terminals for straightforward integration into existing control boards.

Key Benefits:

• 72-Hour Power Backup: The quartz drive with carryover prevents schedule loss during local power failures.
• High Amperage Capacity: Equipped with a 21A resistive SPDT switch to handle robust HVAC and industrial loads.
• Flexible Scheduling: 15-minute minimum ON/OFF increments provided by 96 captive trippers for precise 24-hour cycles.
• Noise Immunity: Optimized for reliability in environments with high electrical noise or interference.
• Universal Mounting: Compact electromechanical timer module designed for easy panel mount or circuit board integration.

Common Questions:

Can this timer handle induction motor loads?
Yes, the Intermatic FM/1STUZH-24U is rated for motor loads up to 1 HP at 120 VAC and 2 HP at 250 VAC, making it suitable for pumps and fans.

Does the battery require manual charging?
No, the quartz drive features a self-recharging battery backup that maintains a charge while the primary 24V supply is active.

Is the manual override easy to access?
This model includes a built-in manual override switch, allowing technicians to toggle the load status without disrupting the set tripper program.

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.