Detectomat DL-520-T DC-520 Addressable Isolated Heat Detector

DL-520-T, DC-520 is an addressable heat detector connected to the D-Loop line of control panels. The single heat sensor monitors both the fixed temperature threshold and the rate of temperature rise; the dual-directional isolator in its housing prevents short circuits on the line from masking adjacent addresses. It is preferred in volumes where smoke measurement is unreliable due to dust, vapor, or exhaust gas, and reports fire without delay even under harsh conditions.