MTL7728+ Zener safety barrier for conventional detection circuits - 517.001.301517. 001. 301FC MTL7728+ Zener Safety Barrier for Conventional Detection Circuits The MTL7728+ is an intrinsically safe, zone powered, Zener diode barrier for use in conventional fire detection systems for protection within hazardous areas. Each Zone contains two stages of pulse tested Zener or forward connected diodes and an infallible terminating resistor. In the event of an electrical fault in the safe area, the diodes limit the voltage that can
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MTL7728+ Zener safety barrier for conventional detection circuits - 517.001.301