Intermatic FM/1STUZH-240U Timer

The Intermatic FM/1STUZH-240U Timer is a professional-grade 24-hour electromechanical timer module specifically engineered for high-demand HVACR, lighting, and industrial pump systems. This 240V quartz timer features a 72-hour carryover battery backup, ensuring that your scheduled cycles remain accurate even during local power interruptions. Designed for seamless integration, it fits standard machine control panels and equipment housings using a compact panel mount form factor.

Built with a 21A SPDT switch, this module handles heavy resistive loads and motor applications up to 2 HP. The interface utilizes 96 captive trippers allowing for precise 15-minute interval scheduling throughout the day. For installation efficiency, the unit is equipped with 1/4-inch quick-connect terminals, reducing wiring time for contractors. The manual override switch (ON/AUTO/OFF) provides immediate circuit control without disrupting the pre-set clock face, making it a reliable choice for technical environments requiring robust noise-immune performance.

Key Benefits:

• 72-Hour Battery Backup: Integrated quartz drive with carryover maintains timekeeping during outages.
• High Amperage Capacity: Rated for 21 Amps resistive and 2 HP at 240VAC to manage heavy-duty HVACR equipment.
• Customizable Scheduling: Features captive trippers for easy 15-minute programming increments.
• Versatile Compatibility: Ideal for refrigeration merchandisers, circulating pumps, and ventilation systems.
• Industrial Durability: Operates effectively in temperatures ranging from -40?F to 185?F.

Common Questions:

Will this timer lose my settings if the power goes out?
No. The quartz drive includes a rechargeable battery backup that provides approximately 72 hours of carryover to keep the clock running accurately during power failures.

Can I manually turn the load on without changing the tripper settings?
Yes. The integrated manual override switch allows you to toggle the circuit ON or OFF manually without affecting the 24-hour program schedule.

Is this unit suitable for outdoor use?
This is a panel-mount timer module intended to be installed inside a NEMA-rated enclosure or a machine control panel. It should not be exposed directly to the elements.

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.