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LS25~150 Series
Instruction Manual
BEFORE USING THE POWER SUPPLY UNIT
Pay attention to all warnings and cautions before using the unit. Incorrect usage could lead to an electrical
shock, damage to the unit or a fire hazard.
WARNING and CAUTION
Do not modify.
Do not touch the internal components, they may have high voltage or high temperature. You may get
electrical shock or burned.
When the unit is operating, keep your hands and face away from it as you may be injured by flying debris in
the event of a fault.
This power supply is designed for use within an end product. Stick the WARNING label for users on the
system equipment and notify in the system instruction manual.
Never operate the unit under over current or short-circuit conditions for more than 30 seconds or outside its
specified Input Voltage Range. Insulation failure, burning, smoke or other damages may occur.
Confirm connections to input/output terminals are correct as indicated in the instruction manual.
This power supply has a possibility for hazardous voltage to appear at output terminal depending on the type
of failure. The outputs of these products 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.
Note: CE MARKING
CE marking, when applied to the LS series products, indicates compliance with the Low Voltage Directive
(2006/95/EC) in that it complies with EN60950-1 .
TDK-Lambda
LS
Series
25-150
INSTRUCTION MANUAL
DWG NO. : PA582-04-01-A
APPD
CHK
DWG

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Summary of Contents for TDK-Lambda LS25 Series

  • Page 1 TDK-Lambda Series 25-150 INSTRUCTION MANUAL LS25~150 Series Instruction Manual BEFORE USING THE POWER SUPPLY UNIT Pay attention to all warnings and cautions before using the unit. Incorrect usage could lead to an electrical shock, damage to the unit or a fire hazard.
  • Page 2 TDK-Lambda Series 25-150 INSTRUCTION MANUAL 1. Terminal Explanation LS25, LS35, LS50, LS75 (1) L : Input terminal Live line (Fuse in line) (2) N : Input terminal Neutral line (3) FG : Functional Ground (4) - V : - Output terminal...
  • Page 3 TDK-Lambda Series 25-150 INSTRUCTION MANUAL 3. Explanation of Functions and Precautions 3-1. Input Voltage Range Input voltage range is single phase 88 ~ 264VAC (47 ~ 63Hz) or 125 ~ 373VDC for LS25 ~ LS100. For LS150, selectable switch 115/230VAC will decide the input voltage range as mentioned in the table below.
  • Page 4 TDK-Lambda Series 25-150 INSTRUCTION MANUAL 3-7. Series Operation For series operation, either method ( A ) or ( B ) is possible. Method ( A ) Method ( B ) Power Supply Power Supply Output Load Terminal Output Terminal Load...
  • Page 5 TDK-Lambda Series 25-150 INSTRUCTION MANUAL 4. Isolation / Withstand Voltage 4-1. Isolation Test Isolation resistance between output and FG (chassis) shall be more than 100MΩ at 500VDC. For safety, voltage setting of DC isolation tester must be done before the test. Ensure that the unit is fully discharged after the test.
  • Page 6 TDK-Lambda Series 25-150 INSTRUCTION MANUAL 5. Mounting Directions 5-1. Output Derating according to the Mounting Directions Recommended standard mounting is Method ( A ). Method ( B ), ( C ) and ( D ) are also possible. Refer to the Output Derating below.
  • Page 7 TDK-Lambda Series 25-150 INSTRUCTION MANUAL LS25-5, -12, -15, -24, -36 & -48 Load (%) Output Derating Vs Ambient Temperature Mounting A & D Mounting B & C 65 70 Ambient Temperature ( LS35-3.3, -5, -12, -15, -24, -36 & -48...
  • Page 8 TDK-Lambda Series 25-150 INSTRUCTION MANUAL LS50-3.3, -5, -12, -15, -24, -36 & -48 Load (%) Output Derating Vs Ambient Temperature Mounting A, B & D Mounting Ambient Temperature (°C) LS75-3.3, -5 Load (%) Output Derating Vs Ambient Temperature Mounting A, B & D Mounting Ambient Temperature (°C)
  • Page 9 TDK-Lambda Series 25-150 INSTRUCTION MANUAL LS75-12, -15, -24, -36 & -48 Load (%) Output Derating Vs Ambient Temperature Mounting A, B & D Mounting Ambient Temperature (°C) LS100-3.3, -5 Output Derating Vs Ambient Temperature Load (%) Mounting A & B Mounting C &...
  • Page 10 TDK-Lambda Series 25-150 INSTRUCTION MANUAL LS100-12, -15, -24, -36 & -48 Output Derating Vs Ambient Temperature Load (%) Mounting A & B Mounting C & D Ambient Temperature (°C) LS150-3.3, -5 Load (%) Output Derating Vs Ambient Temperature Mounting Mounting B, C &...
  • Page 11 TDK-Lambda Series 25-150 INSTRUCTION MANUAL LS150-12, -15, -24, -36 & -48 Load (%) Output Derating Vs Ambient Temperature Mounting Mounting B, C & D Ambient Temperature (°C) (B) Output Derating versus Input Voltage (Convection Cooling) LS100-3.3, -5, -12, -15, -24, -36 & -48...
  • Page 12 TDK-Lambda Series 25-150 INSTRUCTION MANUAL 5-2 Mounting Method This is convection cooling type power supply. In consideration of the heat radiation and safety, please keep a dis- tance of more than 15mm between the power supply and the peripheral parts. When lining up multiple units, please make sure to place them 15mm or more apart from each other.
  • Page 13 This product is under warranty for 3 years (based on 8 hours/day operation) from the date of shipment. During the warranty period, TDK-Lambda will, at it’s option, either repair or replace products prove to be defective. Warranty applies but not limited to the following.