INSTRUCTION MANUAL
ZWS240RC
Series
TDKLambda
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For products without builtin protection circuit (element, fuse, etc.), insert fuse at the input to prevent smoke, fire during
abnormal operation. As for products with builtin protection circuit, depending on usage conditions, builtin protection
circuit might not work. It is recommended to provide separate proper protection circuit.
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For externally mounted fuse do not use other fuses aside from our specified and recommended fuse.
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As our product is standard industrial use product that was manufactured by purpose that is used to an general electronics
equipment etc., it is not products that to designed for High Safety uses (Uses extremely high reliability and safety are
required, if reliability and safety has not been secured, with significant dangerousness for directly life or body) is expected.
Please consider a fail safe (Systems that was provided with protection circuit protective devices or systems that redundant
circuit was mounted so that was not unstable in single failure) design enough.
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When used in environments with strong electromagnetic field, there is possibility of product damage due to malfunction.
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When used in environment with corrosive gas (hydrogen sulfide, sulfur dioxide, etc.) , there is possibility that they might
penetrate the product and lead to failure.
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When used in environments where there is conductive foreign matter or dust, there is possibility of product failure or
malfunction.
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Provide countermeasure for prevention of lightning surge voltage, noise and static electricity as there is risk of damage
due to abnormal voltage.
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Connect together the frame ground terminal of the product and the ground terminal of the equipment for safety and noise
reduction. If these ground is not connected together, there is risk of electric shock.
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Parts with lifetime specifications (electrolytic capacitor) are required to be replaced periodically. Set the
overhaul period depending on the environment of usage and perform maintenance. Also, note that there are cases when EOL
products cannot be overhauled.
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Take care not to apply external abnormal voltage to the output. Especially, applying reverse voltage or overvoltage more
than the rated voltage to the output might cause failure, electric shock or fire.
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Do not use this product in special environment with strong electromagnetic field, corrosive gas or conductive substances and
direct sunlight, or places where product is exposed to water or rain.
･
The product are PC Board Type, which have surfacemounted components on the solder side of PCB. PCB stress such as
bending, twisting etc. could cause damage. Therefore, please handle with care.
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When handling the product, hold the board edge and take care not to touch the component side. When installing the product
in apparatus or equipment, mount it on spacers.
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The outputs of this product may, under fault conditions, exceed SELV voltage limits. Therefore the outputs must be
protected in the end equipment to maintain SELV.
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This product has used power thermistor to protect the circuit from inrush current. Frequent repetition of input might cause
damage to internal components because of generating surge current.
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The output power is considered to be a hazardous energy level (The voltage is 2V or more and the power is 240VA or
more). It must not be made accessible to users. Protection must be provided for Service Engineers against indirect contact
with the output terminals and/or to prevent tools being dropped across them. While working on this product, the AC input
power must be switched off and the input and output voltage should be zero.
Note
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Consider storage of the product at normal temperature and humidity avoiding direct exposure to sunlight at environment
with minimal temperature and humidity changes. Storage of product at high temperature, high humidity and environments
with severe changes in temperature and humidity might cause deterioration, and occurrence of condensation in the product.
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When disposing product, follow disposal laws of each municipality.
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Published EMI (CE, RE) or immunity is the result when measured in our standard measurement conditions and might not
satisfy specification when mounted and wired inside enduser equipment.
Use the product after sufficiently evaluating at actual enduser equipment.
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If products are exported, please register the export license application etc. by the Government of Japan according to Foreign
Exchange and Foreign Trade Control Law.
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The Information in the catalog or the instruction manual is subject to change without prior notice. Please refer to the latest
version of the catalog or the instruction manual.
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No part of this document may be copied or reproduced in any form without prior written consent of TDKLambda.
Note : CE MARKING
CE Marking, when applied to a product covered by this handbook, indicates compliance with the low voltage directive.
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