System Sensor D4P120 Power Board Els PW 17895 Sensing Precision: Advanced photoelectric chamber

Sensing Precision: Advanced photoelectric chamber provides superior detection of large-particle smoke common in smoldering fires

It operates based on motor amperage rather than back-EMF voltage

Is the FUS0823 interchangeable with higher temperature fuse links

immediately breaking the circuit to prevent overheating

System Sensor D4P120 Power Board Els PW 17895 Sensing Precision: Advanced photoelectric chamberThe System Sensor D4P120 Power Board is a critical replacement component designed for the InnovairFlex D4120 duct smoke detector series. Engineered for professional grade HVACR smoke detection, this 4 wire photoelectric power board supports multi voltage inputs, including 24VAC DC or 120VAC, providing flexibility for various field wiring requirements. As a low flow duct smoke detector component, it is optimized to function in air velocities ranging