Applies To
Intermatic ET Basic Series electronic time switches, including the ET1100 Series, ET1700 Series and ET8000 Series. Available in 120-277 VAC with indoor and outdoor enclosure options.
Question / Problem
Can an ET Basic Series electronic timer be installed in an outdoor or wet location?
Answer
Timers can be installed in outdoor or wet locations if paired with the appropriate enclosure type. ET Basic Series timers are available in two enclosure configurations:
- Models ending in C have a Type 1 indoor metal enclosure. These models are rated for indoor use only and must not be installed in outdoor, wet or damp locations.
- Models ending in CR have a Type 3R outdoor metal enclosure. These models are rated for outdoor use and provide protection against rain, sleet and external ice formation.
The internal mechanism is the same in both enclosure types. The only difference is the enclosure rating. Most ET Basic Series "CR" outdoor models have been discontinued. The ET8415CR is the only current ET Basic Series model available in a Type 3R outdoor rated steel enclosure. If you need an outdoor installation for a different configuration, consider the Intermatic ET Basic Plus Series (ET2100, ET2700 and ET2800 Series), which are available in Type 3R outdoor enclosures.
Enclosure Identification
Use the model number suffix to determine the enclosure type. The following table shows ET Basic Series models and their enclosure ratings. Discontinued models include the ET Basic Plus replacement from the ET2100, ET2700 or ET2800 Series:
| Series | Indoor Model (Type 1) | Outdoor Model (Type 3R) |
|---|---|---|
| ET1100 (24-hour, 1-circuit) | ET1115C (Discontinued -- replaced by ET2115C) | ET1115CR (Discontinued -- replaced by ET2115CR) |
| ET1100 (24-hour, 2-circuit) | ET1125C | ET1125CR (Discontinued -- replaced by ET2125CR) |
| ET1700 (7-day, 1-circuit) | ET1715C (Discontinued -- replaced by ET2715C) | ET1715CR (Discontinued -- replaced by ET2715CR) |
| ET1700 (7-day, 2-circuit) | ET1725C | ET1725CR (Discontinued -- replaced by ET2725CR) |
| ET8000 (astronomic 7-day, 1-circuit) | ET8015C | ET8015CR (Discontinued -- replaced by ET2805CR) |
| ET8000 (astronomic 7-day, 2-circuit) | ET8215C | ET8215CR (Discontinued -- replaced by ET2825CR) |
| ET8000 (astronomic 7-day, 4-circuit) | -- | ET8415CR |
Tips / Additional Notes
- The model number is printed on the front label of the timer. Check the last characters after the numeric portion to confirm whether you have a "C" or "CR" model.
- Type 3R enclosures are designed to protect against falling rain and external ice formation. They are not rated for submersion or direct exposure to high-pressure water spray. Do not install in locations subject to flooding or standing water.
- If you need an outdoor timer and the ET Basic Series "CR" model you need has been discontinued, consider the Intermatic ET Basic Plus Series. The ET2100 Series (24-hour), ET2700 Series (7-day) and ET2800 Series (Astronomic 7-day) are available in Type 3R outdoor enclosures. Contact Intermatic Technical Support.