Intermatic FM/1QTUZH-120U Timer

The Intermatic FM/1QTUZH-120U is a high-capacity 120V electromechanical timer module engineered for seamless integration into machine control panels and HVACR systems. As a quartz-driven timer, it features a self-recharging battery backup that provides a 72-hour carryover, ensuring your 24-hour scheduling remains uninterrupted during power seasonal outages. This module is built with a robust 21 Amp SPDT switch, making it a reliable choice for managing heavy-duty loads such as circulating pumps, commercial refrigeration defrost cycles, and industrial ventilation.

Installation is efficient with the 1/4-inch quick-connect terminals, and the captive trippers allow for precise 15-minute interval settings without the risk of losing components. The integrated 3-way manual override switch (ON/AUTO/OFF) provides immediate local control, which is essential for system maintenance and diagnostic testing. Designed to be noise immune, this panel mount timer performs consistently in electrically "dirty" environments, offering a versatile solution for both single-phase general applications and complex OEM equipment configurations.

Key Benefits

• Reliable Timekeeping: The quartz drive mechanism maintains accuracy independent of line frequency, complemented by a substantial 72-hour battery reserve.
• High Load Capacity: Rated for 21A resistive and up to 2 HP at 240VAC, handling inductive motor loads common in refrigeration and HVAC.
• Granular Control: 96 captive trippers enable 15-minute programming increments for optimized energy management.
• Professional-Grade Durability: Noise-immune construction prevents interference from surrounding electronic components in a control cabinet.
• Manual Flexibility: The override switch allows technicians to bypass the 24-hour clock schedule for service without losing the programmed routine.

Common Questions

How do I set the clock face on this module?
Rotate the minute hand clockwise until the current time aligns with the silver triangle indicator on the inner dial. Avoid rotating the outer dial directly to prevent damaging the quartz gear train.

Does this timer support 7-day programming?
While the FM/1 series includes 7-day versions, the FM/1QTUZH-120U is specifically a 24-hour timer module. It repeats the same programmed schedule daily, which is standard for HVAC and lighting cycles.

Can I use this for both NO and NC applications?
Yes. The SPDT switch (Single Pole Double Throw) provides both Normally Open and Normally Closed contacts, allowing you to control two different load states or signal a controller when the timer is in the "off" position.

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.