Conventional Heat Detectors
Conventional Heat Detectors respond to temperature rise rather than visible smoke. They suit sites with ordinary smoke (kitchens, workshops, garages) where smoke detectors are unsuitable. Two main types: fixed temperature and rate-of-rise. Response is slower than smoke detectors but with far fewer false alarms.
(0 products)
About this category
Conventional heat detectors are the right choice at sites with normal atmospheric contamination or routine smoke. The design: a ceiling device holding a heat-sensing element (thermistor or bimetal), simple electronics, and a wiring base. Types: fixed temperature (operates when a preset threshold is reached — typically 57°, 68°, or 93°C), rate-of-rise (operates when temperature rises faster than 6.7-10°C per minute), and combination (both). Electrical principle is similar to conventional smoke detectors: 15-25 detectors on one zone loop with an end-of-line resistor. Detectors are classified under EN 54-5 from A1 to G by application temperature and response range; take the values from the standard and the model documents. Applications: commercial kitchens (ahead of hood suppression), maintenance workshops and welding areas, garages and car parks, printing facilities, fuel facilities, dusty storage, and plants with steam. A key advantage: resistance to false alarms from steam, dust, or exhaust. A substantive difference from smoke detectors: heat is slower to respond but more reliable in harsh environments; smoke is faster but prone to false alarms. A technical note: temperature rating should be at least 10-15° above the highest expected ambient at the site. Maintenance: annual test with a heat gun and model-specific operational checks per the manufacturer's instructions.
Read moreHide details
Conventional heat detectors are the right choice at sites with normal atmospheric contamination or routine smoke. The design: a ceiling device holding a heat-sensing element (thermistor or bimetal), simple electronics, and a wiring base. Types: fixed temperature (operates when a preset threshold is reached — typically 57°, 68°, or 93°C), rate-of-rise (operates when temperature rises faster than 6.7-10°C per minute), and combination (both). Electrical principle is similar to conventional smoke detectors: 15-25 detectors on one zone loop with an end-of-line resistor. Detectors are classified under EN 54-5 from A1 to G by application temperature and response range; take the values from the standard and the model documents. Applications: commercial kitchens (ahead of hood suppression), maintenance workshops and welding areas, garages and car parks, printing facilities, fuel facilities, dusty storage, and plants with steam. A key advantage: resistance to false alarms from steam, dust, or exhaust. A substantive difference from smoke detectors: heat is slower to respond but more reliable in harsh environments; smoke is faster but prone to false alarms. A technical note: temperature rating should be at least 10-15° above the highest expected ambient at the site. Maintenance: annual test with a heat gun and model-specific operational checks per the manufacturer's instructions.
No products in this category yet
No products in this category yet
Browse the similar categories, or request a quote for what you need and we will source it.