RRX series fusible
wire wound resistors are designed as fusible safety resistor (or, AC mains
input resistors) in electric appliances and energy meters. The specially
selected resistive winding wire and special non-flammable silicon cement
coating material are adopted to ensure safe and silent fusing operation without
flame and immediate interruption in overload conditions. Wide range of overload
currents is available upon request.
The resistor fuses without
explosion when AC mains voltage is applied. At the same time, it acts as an
in-rush current limiting resistor for the normal operation.
The specially
developed lacquer coating has superior thermal and electrical insulating
properties. This allows designers to more easily meet the requirements of
safety approval, whilst eliminating the need to put additional fuses in series
with the input resistors.
Surge voltage
capability: 2 kV (10Ω to 91Ω) and 4 kV (100 Ω) as per IEC 61000-4-5.
One grey code behind
tolerance code is for distinguishing from the other kind of resistors with the
same fire retardant coating.
The resistors are
compliance with RoHS and REACH.
The
resistors are compliance to Thunder Enterprise standard: Q\SLC023-2011.