Siemens HI921 SF 20/02 Both modules occupy one rail

Both modules occupy one rail space in the fire alarm control cabinet and provide removable field wiring terminals to aid installation

or 115 cd light output and have a constant current draw for all light output settings of 35mA for VDC and 45mA for VFWR

indicated the relay coil is energized

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Kodiak 700 EPS Hunter 2019

Siemens HI921 SF 20/02 Both modules occupy one railThe Siemens HI921 is an intelligent, addressable thermal (heat) detector designed to provide advanced fire detection through precise temperature monitoring. Incorporating state of the art thermistor technology and microprocessor based signal processing, the HI921 ensures high reliability and accuracy in various environments. Offers seven pre programmed temperature settings ranging from 135F (57C) to 174F (79C), including both fixed and rate of rise