Emerson Climate Technologies
Emerson Climate Technologies 1609-101 HVAC control -30 to 90°F 120-240VAC SPST
Mechanical line-voltage thermostat controls cooling from -30 to 90 °F at 120-240 VAC with SPST close-on-rise action and a remote sensing bulb
- TypeTemperature Controllers
- ColorGray
- Wide temperature range suits many cooling tasks
- SPST switch closes on temperature rise for simple control
- Dustproof NEMA 1 enclosure protects internals from debris
- Remote sensing bulb included for flexible placement
- Rated 4.9 A at 240 VAC for line-voltage circuits
Line-voltage mechanical thermostat
This Emerson 1609-101 is a line-voltage mechanical thermostat with a single SPST switch that closes on temperature rise. It operates across a control range of -30 to 90 degrees F and handles 120 to 240 VAC at up to 4.9 A full load. A remote sensing bulb is included and the dustproof NEMA 1 enclosure is finished in gray.
Cooling-only control for HVAC systems
The device suits installers who need a simple close-on-rise thermostat for cooling applications with remote sensing. It is not for heating circuits, multi-stage equipment or installations that require an open-on-rise action or multiple switch poles.
SPST close-on-rise switch action
The single-pole single-throw switch closes when temperature rises, which determines whether the thermostat matches the required control logic for the target cooling circuit.
Highlights
- Wide temperature range suits many cooling tasks
- SPST switch closes on temperature rise for simple control
- Dustproof NEMA 1 enclosure protects internals from debris
- Remote sensing bulb included for flexible placement
- Rated 4.9 A at 240 VAC for line-voltage circuits
Specifications
| Type | Temperature Controllers |
|---|---|
| Brand | EMERSON |
| Model | 1609-101 |
| Color | Gray |
Questions about this item
How often does the 1609-101 mechanical thermostat need recalibration?
The mechanical design has no factory calibration schedule; accuracy depends on the sensing bulb remaining clean and undamaged.
What limits continuous operation of the SPST switch at 240 VAC?
The 4.9 A full-load rating at 240 VAC is the limiting factor; exceeding it will overheat the contacts.
Does the dustproof NEMA 1 enclosure run hot or make noise during all-day use?
No moving parts or active cooling mean silent operation and negligible heat rise inside the enclosure.
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