Overview
The Johnson Controls A19QSC-1C is a mechanical, single-stage remote bulb temperature control equipped with a watertight NEMA 4X enclosure. It is designed to provide reliable temperature regulation for HVAC, industrial, commercial, and agricultural applications, especially in wet or corrosive environments.
Features
- Watertight gasketed thermoplastic enclosure meeting NEMA 4X specifications
- Concealed screwdriver slot setpoint adjustment to prevent unauthorized tampering
- Single-stage SPDT switch action for heating or cooling control
- Liquid-filled sensing element and capillary for accurate temperature response
- Automatic reset functionality
Specifications
- Temperature Range: 0 to 150°F (-18 to 66°C)
- Differential: 5°F (2.8°C) Fixed
- Switch Action: SPDT
- Capillary Length: 10 feet
- Bulb Dimensions: 3/10 inch x 2-1/2 inches
- Maximum Bulb Temperature: 190°F (88°C)
- Electrical Ratings: 120/208/240/277 VAC options
Applications
- Cooling tower sump heaters
- Control of heating or ventilation equipment
- Industrial and commercial processing environments requiring weather protection



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