MTL7798 Power feed and protection module
The MTL7798 power feed module incorporates both voltage and current sense mechanisms to protect barrier circuits by activating a solid state trip mechanism when fault or overload conditions occur in the power source circuit. Resetting the module after tripping is achieved by interupting the supply to the unit. A red LED indicates a circuit trip condition and a green LED the availability of power at the outputs. Bussed power for other modules is sourced from the top of the unit using the Bus Power Link BPL7700 or via terminals 1 and 2.
BASIC CIRCUIT
ADDITIONAL SPECIFICATION
Input voltage range (terminals 5&6)
20 to 26.8V
Maximum input voltage capability
45V
Power source requirements
>1.8A
Trip mechanism
Minimum trip 26.8V @ 20°C (+18mV/°C)
Output current range
0 to 800mA
Maximum voltage drop
20mV @ 0mA, 1.0V @ 800mA load
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