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TDK-Lambda 

CUT75 

Instruction Manual

 

CUT75

Instruction Manual 

 
 
 
 
 
 
 
 

BEFORE USING THE POWER SUPPLY UNIT 

Be sure to read this instruction manual thoroughly before using this product. Pay attention to all cautions and warnings before using this product. 
Incorrect usage could lead to an electrical shock, damage to the unit or a fire hazard. 

 

 

DANGER

 

Never use this product in locations where flammable gas or ignitable substances are present. There are risks of igniting these substances and 
exploding by an arcing. 

 

 WARNING

 

 

Do not touch this product or its internal components while circuit is live, or shortly after shut down. There may be high voltage or high 
temperature present and you may receive an electric shock or burn. 

 

When this product is operating, keep your hands and face away from it as you may be injured by an unexpected situation. 

 

Do not make unauthorized changes to this product, otherwise you may receive an electric shock and void your warranty. 

 

Do not drop or insert anything into this product. It might cause a failure, fire and electric shock. 

 

Do not use this product under unusual condition such as emission of smoke or abnormal smell and sound etc. It might lead to fire and electric 
shock. In such cases, please contact us. Do not attempt repair by yourself, as it is dangerous for the user. 

 

Do not operate these products in the presence of condensation. It might lead fire or electric shock. 

 

 

CAUTION

 

 

This power supply is designed and manufactured for use within an end product such that it is accessible to SERVICE ENGINEERS only. 

 

Confirm connections to input/output terminals are correct as indicated in the instruction manual before switching on. 

 

Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within specifications, otherwise the 

product will be damaged. 

 

Do not use this product in environment with a strong electromagnetic field, corrosive gas or conductive substances. 

 

For applications, which require very high reliability, it is necessary to provide a fail-safe mechanism in the end equipment. 

 

Do not inject abnormal voltages into the output of this product. The injection of reverse voltage or over voltage exceeding nominal output 

voltage into the output terminal might cause damage to internal components. 

 

Never operate the product under over current or short-circuit conditions for more than 30 seconds, or outside its specified Input Voltage Range. 

Insulation failure, smoking, burning or other damage may occur. 

 

This product contains a printed circuit board utilizing surface mounted devices. PCB stress such as bending, twisting etc. could cause damage. 

Therefore, please handle with care. 

 

When handling this product, hold the board edge and take care not to touch the component side. If the application environment with strong 

vibration,please mount it on spacers,when installing this product in apparatus or equipment . 

 

The outputs of this product may, under fault conditions, exceed SELV voltage limits. Therefore the outputs must be earthed in the end 

equipment to maintain SELV. If the outputs are not earthed, they must be considered hazardous and must not be made user accessible. 

 

This product has used Power Thermistor to protect the circuit from Inrush Current. Frequent repetition of input on/off might cause damage to 

internal components because of generating surge current. 

 

Breaking of internal fuse is considered internal failure. In such cases, please contact us. 

 

The information in this document is subject to change without prior notice. Please refer to the latest version of the data sheet, etc., for the most 

up-to date specifications of the product. 

 

No part of this document may be copied or reproduced in any form without prior written consent of TDK-Lambda.

 

 

 
 
 
 
 
 
 
 
 
 
 

 

CA809-04-01B

 

Summary of Contents for CUT75

Page 1: ...ations otherwise the product will be damaged Do not use this product in environment with a strong electromagnetic field corrosive gas or conductive substances For applications which require very high...

Page 2: ...immunity IEC61000 4 5 Level 3 Level 4 Normal mode 2kV Common mode 4kV Conducted RF immunity IEC61000 4 6 Level 3 10V Power frequency magnetic field IEC61000 4 8 Level 4 30A m Voltage dips variations i...

Page 3: ...refer to the specification Series Name 2 Terminal Explanation CUT75 L ACInputterminalLiveline Fuse inline N AC Input terminal Neutralline Terminal ProtectiveEarth Mountinghole holediameter 3 5mm This...

Page 4: ...3 TDK Lambda CUT75 Instruction Manual 3 Block Diagram 4 Sequence time chart ADD...

Page 5: ...toother components when connectingorremovingconnector Useinput outputconnector housing specifiedby thetablebelow Userecommended crimpingtool Connector is notincluded withthisproduct Refer tothefollowi...

Page 6: ...er ambient temperature or re input condition Please select input switch and fuse carefully with the high temperature and re input the power condition The Inrush Current is typical value under cold sta...

Page 7: ...VDC For safety operation voltage setting of DC isolation tester must be done before the test Ensure that the unit is fully discharged after the test Output Protective Earth 500VDC More than 100M AC L...

Page 8: ...contact TDK Lambda for the technical support and instructions 3 Keep more than 5mm creepage and clearance between circuitry components of output side and FG to meet the power supply withstand voltage...

Page 9: ...B F CONVECTION COOLING L AND A MODEL 0 20 40 60 80 100 20 10 0 10 20 30 40 50 60 70 80 Ta C LOAD A C D B F E Ta C LOADING CONDITION Mounting A C D E Mounting B Mounting F 20 40 100 100 100 45 100 100...

Page 10: ...l pieces is 8mm from each PCB corners Refer to figure below CUT75 8 8 8 8 8 8 8 8 Condition to meet Isolation Withstand Voltage standard More than 4mm More than 4mm More than 4mm More than 4mm More th...

Page 11: ...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...

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