INSTRUCTION MANUAL
ZWP350-1000 Series
TDK-Lambda
<Page>
CAUTION ON USE
• Product individual notes are shown in the instruction manual. If there is any difference with common notes, individual
notes shall have priority.
• Before using this product, be sure to read the catalog and instruction manual. There is risk of electric shock or damage
to the product or fire due to improper use.
• Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within
specifications. Otherwise the product will be damaged, or cause electric shock or fire.
• If the internal fuse is blown, do not use the product even after replacing the fuse, as there is risk of abnormality inside.
Be sure to request repair to our company.
• For products without built-in protection circuit, insert fuse at the input to prevent smoke, fire during abnormal operation.
As for products with built-in protection circuit, depending on usage conditions, built-in protection circuit might not work.
It is recommended to provide separate proper protection circuit.
• For externally mounted fuse do not use other fuses aside from our specified and recommended fuse.
• This product is made for general purpose electronic equipment use and is not designed for applications requiring high
safety such as extremely high reliability and safety requirements. Even though high reliability and safety are not required,
this product should not be used directly for applications that have serious risk to life and physical safety. Take sufficient
consideration in fail-safe design such as providing protective circuit or protective device inside the system, providing
redundant circuit to ensure no instability when single device failure occurs.
• When used in environment with strong electromagnetic field, there is a possibility of product damage due to malfunction.
• When used in environment with corrosive gas (hydrogen sulfide, sulfur dioxide, etc.), there is possibility that it might
penetrate the product and result in failure.
• When used in environment where there is conductive foreign matter or dust, there is possibility of product failure or
malfunction.
• Provide countermeasure for prevention of lightning surge voltage as there is risk of damage due to abnormal voltage.
• 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.
• Parts with lifetime specifications (electrolytic capacitor) is 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.
• 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.
• This product is designed under condition Material group III b, Pollution Degree (PD): PD2, Over Voltage Category (OVC):
OVC II in IEC/UL/CSA/EN 62368-1, OVC III in IEC/EN 62477-1 and Class of equipment: Class I. This product is
designed to be accessible only to service technicians as part of indoor use device.
• This product contains a Printed Circuit Board (PCB) utilizing Surface Mounted Devices. PCB stress such as bending might
cause SMD damage. Please handle with care.
• When handling this product, hold the PCB edge or base plate, and take care not to touch the component side.
• The outputs of this product may exceed ES1 limits under fault conditions. The outputs must be protected in the end
equipment to maintain ES1.
• The output power of this product is considered to be hazardous energy level. (The voltage is more than or equal to 2V and
the power is more than equal to 240VA) It must not be made accessible to users. Protection must be provided for service
engineers against indirect contact with the output terminal and to prevent any tools drop across the outputs. While
working on this product, the AC input must be switched off and the input and output voltage should be zero.
2/23
