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TDK-Lambda
ELC12 Series
INSTRUCTION MANUAL
6. Explanation of Functions and Precautions
6-1. Input Voltage Range
Input voltage range is single phase90 - 265VAC ( 47 - 63Hz )
Using this unit outside the input voltage specification range might cause damage to unit. For cases where
conformance to various safety specs are required, input voltage range will be 100 - 240VAC ( 50 - 60Hz ).
6-2. Inrush Current
This series is equipped with Power thermistor to limit the inrush current. Since this series employs power
thermistor method, inrush current increase at higher ambient temperature or input recycle condition.
6-3. Over Voltage Protection (OVP)
The OVP function will cause the output to shut down. In order to recover output during output shutdown,
remove the AC input for a few minutes, then recycle AC input. OVP setting is fixed and cannot be adjusted
externally.
6-4. Output Voltage low condition
Output Ripple becomes large at several conditions such as 100V input system (Vin = 90 to 169VAC) when output
voltage is set at approximately 40% or less than the rated voltage, and 200V input system (Vin = 170 to 265VAC)
when output voltage is set approximately 50% or less than the rated voltage.
When using in the above mentioned low voltage load range, please perform operation check sufficiently. In addition,
never operate the unit under less than the minimum of the output voltage range (16.7% of rated output voltage) or
shorted conditions. This might cause damage to the unit.
6-5.
Load terminal disturbance voltage test
To satisfy load terminal disturbance voltage test in PSE, attach electrolytic capacitor : 100uF, film capacitor : 0.1uF
to the end of output wire.
6-6. Maximum Load Capacity
Attach capacitor to the load side within the following capacitance.
Maximum External Capacitance
Model
ELC12-18-R70
ELC12-36-R35
Capacitance
100uF
100uF
