Intermatic FM1D20A-240 Timer

The Intermatic FM1D20A-240 is a heavy-duty 24-hour/7-day electronic timer module designed for precise load control in demanding commercial and industrial environments. This single-channel electronic time switch features 20 programmable setpoints, allowing for versatile scheduling across surface mount installations. Engineered for 240VAC 50/60Hz systems, the unit utilizes a high-capacity SPDT 20A relay capable of handling inductive, resistive, and tungsten loads. Field technicians value the synchronous motor accuracy and the integrated battery backup, which maintains program memory during power interruptions for up to 2,500 hours. The large LCD interface facilitates straightforward programming of daily, weekend, or weekly cycles. Built with a robust housing and clear terminal identification, this digital timer module ensures reliable performance when managing HVAC systems, lighting circuits, and industrial pumps where timing accuracy is a critical requirement for operational efficiency.

Technical Features and Field Benefits

• 20 On/Off Programs: Provides granular control for complex 7-day scheduling requirements.
• 20A SPDT Switching: High-amperage Form C contacts support a wide range of motor and lighting loads.
• Manual Override: Allows for immediate load status changes without disrupting the programmed electronic time switch cycles.
• Surface Mount Design: Optimized for easy integration into existing control panels or standalone enclosures.
• Non-Volatile Memory: Internal backup prevents the need for field reprogramming after site power loss.

Common Contractor Questions

Can the FM1D20A-240 handle both 120V and 240V inputs?
No, this specific model is optimized for 240VAC operation. For 120V applications, the FM1D20A-120 should be specified to match the system voltage.

Is this module suitable for outdoor installations?
As a standalone module, it is intended for indoor use or must be housed within a NEMA-rated enclosure to protect the surface mount timer from environmental exposure.

Does this unit support "A" and "B" week alternating schedules?
The unit supports daily and 7-day programming, enabling unique schedules for each day of the week, though it does not feature a dedicated bi-weekly alternating function.

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.