Intermatic
Intermatic EP100C 24 hr Electronic Timer 30 A 120 277 V AC Beige
A 24-hour electronic timer with 28 programmable on/off events, 30 A SPST contact, and 120–277 V AC rating in a NEMA 3R beige plastic enclosure
- 24-hour scheduling with 28 programmable on/off events
- 30 A SPST contact handles 1 hp at 120 V and 2 hp at 240 V
- Operates on 120 to 277 V AC for flexible installation
- NEMA 3R plastic enclosure rated for surface mounting
- Battery backup retains settings for 3 years
Electronic timer for daily scheduling
The Intermatic EP100C provides a single-channel SPST timer that operates on a 24-hour cycle. It handles 120 to 277 V AC at 30 A, supporting 1 HP at 120 V and 2 HP at 240 V. The unit is suited for controlling lighting, pumps or HVAC circuits in residential and light-commercial installations.
Low heat and silent operation
The timer draws minimal power for its internal electronics and produces no audible noise during normal use. A NEMA 3R plastic enclosure protects the contacts from rain and splashing water when mounted on a surface. No active cooling is required, so thermal output remains negligible.
Battery backup keeps schedules intact
An internal battery maintains the programmed events for up to 3 years if mains power is lost. The timer allows up to 28 on/off events, with each on/off pair counting as two events. Minimum setting resolution is 1 minute and the maximum span is 24 hours.
Highlights
- 24-hour scheduling with 28 programmable on/off events
- 30 A SPST contact handles 1 hp at 120 V and 2 hp at 240 V
- Operates on 120 to 277 V AC for flexible installation
- NEMA 3R plastic enclosure rated for surface mounting
- Battery backup retains settings for 3 years
Specifications
| Brand | INTERMATIC |
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Questions about this item
How is the Intermatic EP100C surface-mounted and what wiring step is often missed?
Mount the plastic enclosure on a flat surface, connect line and load to the single-pole SPST terminals for 120–277 V AC, and remember to install the backup battery so the 28 programmed events keep time during power loss.
What maintenance will the Intermatic EP100C need over its service life?
Replace the internal backup battery after roughly three years to retain the 24-hour schedule and 28 on/off events when mains power fails.
What is the first limit reached when the Intermatic EP100C runs continuously at full load?
The 30 A / 1 HP at 120 V or 2 HP at 240 V rating caps the connected motor or resistive load; exceeding it trips the contactor or overheats the single-pole contacts.
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