Nippon Hakuyo FD-6557 Fixed Temperature
Heat Detector


The Nippon Hakuyo FD-6557 is an addressable fixed temperature Heat Detector. The Nippon Hakuyo FD-6557 will give an alarm at 70°C.

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The Nippon Hakuyo FD-6557 Heat Detector will give an alarm at 70°C.
Rated voltage: 28V/50mA
Warning current: 2mA
Operation voltage range: 20v~30V
Operation temperature range: -25°C up to +70°C