Description
The Johnson Controls A99BC-25 is a high-performance PTC (Positive Temperature Coefficient) silicon temperature sensor engineered for reliable temperature measurement across a broad operating range. Designed for use in commercial HVAC and building automation applications, this sensor pairs a durable PTC silicon sensing element with a high-temperature silicon cable, making it well-suited for demanding environments where standard cables may degrade.
Key Features
- PTC silicon sensing element for accurate, stable temperature detection
- High-temperature silicon cable construction for enhanced durability and heat resistance
- Wide temperature operating range of -40°F to 248°F (-40°C to 120°C)
- 9-3/4″ cable length provides flexible installation options
- Designed for integration with Johnson Controls building automation and HVAC control systems
- Compact, robust design suitable for commercial and light industrial applications
Specifications
- Model: A99BC-25
- Sensor Type: PTC Silicon
- Cable Type: High-Temperature Silicon Cable
- Cable Length: 9-3/4″
- Temperature Range: -40°F to 248°F (-40°C to 120°C)
- Brand: Johnson Controls
Applications
- Commercial HVAC systems and air handling units
- Building automation and energy management systems
- Duct, pipe, and surface temperature sensing
- Johnson Controls compatible control panels and DDC systems







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