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> Inrush current limiting limiter SG333 12A 5OHMS qty 8
Inrush current limiting limiter SG333 12A 5OHMS qty 8
SG333 Surge Gard SeriesYou get 8 of these Surge currents which occur when electrical circuits are switched on
can cause serious damage to sensitive electronic components which may
exceed their rated values unless the surge is controlled. Damaging
surges may be prevented by using Surge-Gard inrush current limiters
placed in critical parts of the circuit. Surge-Gards are a type of power NTC
thermistor manufactured from a specially formulated metal oxide
ceramic material which is capable of suppressing high inrush current
surges. Connected in series with the load, at switch-on, the thermistor
limits the current due to its relatively high cold resistance. As a result of
current flow the thermistor heats, reducing its resistance value so that
once the initial surge has been safely held off the resistance in the circuit
is held at a low value to maximise efficiency. They are used in:
Power Supplies Electric Motors
Lighting Circuits Thermostat Protection
Any Circuit Subject to Switch-on Current Surges
Surge-Gard devices have the following properties:
High Hot to Cold Resistance Ratio
Reduced Temperature at Full Load
Extends lamp filament life by up to 6 times
