Bosch F220-135 Electronic Rate-of-Rise/Fixed Temperature Heat Detector
SKU
F220-135
Model No
F220-135
$24.98
Product Highlights
- Two-wire or four-wire bases
- 50 ft (15.2 m) maximum spacing between detectors
- Visible identification of model: F220-135 = no ring
- Tamper detection
- Dual color LED

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An electronic rate-of-rise, fixed temperature heat detector that initiates an alarm when the ambient temperature exceeds +135°F (+57°C) or when the ambient temperature increases by +15°F (+8.3°C) or more in less than 1 minute. The detectors use low current electronic circuitry, so they can connect to 12 VDC nominal or 24 VDC nominal power source circuits. When mounted on the appropriate F220-B6 Series Mounting Base, the F220 Heat Detectors provide general property protection from fire.
Bosch F220-135 Heat Detector Features
- Two-wire or four-wire bases: Flexibility to integrate into different alarm systems, enhancing installation options.
- 50 ft (15.2 m) maximum spacing between detectors: Allows for effective area coverage while minimizing installation costs.
- Visible identification of model: F220-135 = no ring, ensuring quick identification in emergency situations.
- Tamper detection: Enhances security by alerting users to unauthorized removal or interference.
- Dual color LED: Provides clear visual indication of operational status, improving user awareness.
Detailed Specifications for Bosch F220-135
Feature | Details |
---|---|
Temperature Activation | +135°F (+57°C) alarm trigger |
Rate-of-Rise Detection | Activates when temperature increases by +15°F (+8.3°C) in less than 1 minute |
Power Supply | Compatible with 12 VDC nominal or 24 VDC nominal circuits |
Mounting Base | Requires F220-B6 Series Mounting Base for optimal performance |
Dimensions | Standard heat detector size for easy installation |
Weight | Lightweight design for reduced strain on mounting structure |
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