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INSTRUCTION MANUAL
ZWS300RC
Series
TDK-Lambda
<Page>
9. The life expectancy
The life of the power supply depends on the life of the built-in aluminum electrolytic capacitor.
The life is described in reliability data.
The life of the aluminum electrolytic capacitor varies depending on the method of mounting the power supply,
the load current, and the ambient temperature.
Please refer to "Electrolytic Capacitor Lifetime".
Please do not use the product which passed over the life expectancy.
There is a risk of unexpected output shutdown and specifications may not be satisfied.
Please contact us for maintenance or exchange the product which passed over the life expectancy.
10. External Fuse Rating
Refer to the following fuse rating when selecting the external input fuse.
Surge current flows when input turn on. Use slow-blow fuse or time-lug fuse. Fast-blow fuse can not be used.
Fuse rating is specified by inrush current value at input turn on.
Do not select the fuse according to actual input current (rms.) values.
ZWS300RC : 6.3A
11. Before concluding that the product is at fault…
Before concluding that the product is at fault, make the following checks.
(1) Check if the rated input voltage is connected.
(2) Check if the wiring of input and output is correct.
(3) Check if the wire size is not too thin.
(4) Check if the output voltage control (V.ADJ) is properly adjusted.
(5) Check if the output current and output power does not over specifications.
(6) Audible noise can be heard when input voltage waveform is not sinusoidal wave.
(7) Audible noise can be heard during Dynamic-Load operation.
12. Warranty Period
This product is warranted for a period of 5 years from the date of shipment.
For damages occurring at normal operation within this warranty period, repair is free of charge.
13. CE MARKING/UKCA MARKING
CE MARKING
CE Marking, when applied to a product or packing material for a product covered by this handbook, indicates
compliance with the Low Voltage Directive, EMC Directive and RoHS Directive.
UKCA MARKING
UKCA Marking, when applied to a product or packing material for a product covered by this handbook,
indicates compliance with the Electrical Equipment (Safety) Regulations, Electromagnetic Compatibility
Regulations and Restriction of the Use of Certain Hazardous Substances in Electrical & Electronic Equipment
Regulations.
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