Intermatic FF4H Timer

The Intermatic FF4H is a heavy-duty 4-hour spring wound timer designed for reliable manual override control in commercial and industrial HVACR applications. Engineered with a SPST switch configuration, this commercial-grade timer simplifies energy management for lighting, ventilation, and motor loads by automatically shutting off equipment after a designated interval. The brushed aluminum finish and rugged construction ensure durability in demanding environments, while the cULus listed rating confirms it meets rigorous safety standards for 20A resistive loads at 125VAC. This Intermatic FF series timer features a "hold" feature allow for permanent ON operation when necessary, providing versatility for contractors managing varying site requirements. Its universal design replaces most standard toggle switches and fits into a single-gang junction box, making it a standard spring wound countdown timer for retrofitting fans, heaters, and pumps. Rely on this manual shut-off timer for precise mechanical timing without the need for a neutral wire connection.

• Mechanical Operation: No' neutral wire required for installation, making it ideal for older electrical configurations and retrofits.
• High Amperage Rating: Handles up to 20A at 125VAC or 10A at 250VAC/277VAC to support heavy induction motor loads.
• Durable Aluminum Faceplate: Provides a professional aesthetic while resisting corrosion and wear in high-traffic commercial spaces.
• Simplified Installation: Standard 1-inch depth fits comfortably in deep or shallow outlet boxes using screw terminals.
• Teasing-Resistant Design: Internal components are built to prevent arcing and ensure a clean break of contacts at the end of the timing cycle.

Does the Intermatic FF4H require power to operate the clock motor?
No, this is a mechanical spring-wound timer that utilizes a clockwork mechanism; it operates independently of line voltage, ensuring functionality even during power fluctuations.

Can this timer be used for 3-way switching applications?
The FF4H is a Single Pole Single Throw (SPST) device. For 3-way switching, you would require a Double Pole Double Throw (DPDT) variant from Intermatic?s professional series.

Is the dial plate and knob included with the FF4H model?
Yes, the FF4H typically ships as a complete kit including the 4-hour brushed aluminum dial plate and the black contrast knob for immediate field installation.

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.