PYD20 Manual
DC-DC Converter Isolated, 20W, 2x1”, PCB Mount
4. I
NSTALLATION
I
NSTRUCTIONS
Before operating this device, please read this manual thoroughly and retain for future reference! This device
may only be installed and put into operation by qualified personnel. If damage or malfunction should occur
during operation, immediately turn power off and send device to the factory for inspection. The device does
not contain serviceable parts.
WARNING
Risk of electrical shock, fire, personal injury or death.
Turn power off before working on the device. Protect against inadvertent re-powering.
Do not modify or repair the unit.
Do not open the unit as high voltages are present inside.
Use caution to prevent any foreign objects from entering the housing.
Do not use in locations where flammable gas or ignitable substances are present.
Do not use in wet locations or in areas where moisture or condensation can be expected.
Do not use in environment with strong electromagnetic field, corrosive gas or conductive substances or direct
sunlight.
Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.
Obey the following installation instructions:
This device may only be installed and put into operation by qualified personnel.
This device does not contain serviceable parts. Replace fuses only when explicitly permitted. If damage or
malfunction should occur during installation or operation, immediately turn power off and send unit to the
factory for inspection.
Install the device in an enclosure providing protection against electrical, mechanical and fire hazards.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is
allowed.
The input can be powered from batteries or similar DC sources.
Check for correct input polarity. The device will get damaged when the voltage is reversed.
Ensure sufficient cooling to avoid overloading the device.
The device is designed for altitudes up to 5000m (16400ft).
This device is not internally fused. An external input fuse must always be used. Use a 3.15A slow-blow fuse.
The maximum operational case temperature is +105°C (+221°F). The case temperature is defined in the
middle of the top side of the cover.
The device is designed to operate in areas with a maximum relative humidity of 95%.
Do not apply return voltages from the load to the output terminals.
Do not connect the outputs of multiple devices in parallel for higher output currents.
Do not connect batteries for charging purposes without additional charging circuit to the output of the device.
All parameters are typical values specified at nominal input voltage, nominal output load, 25°C ambient and after a 5 minutes run-in time unless
otherwise noted. The information presented in this document is believed to be accurate and reliable and may change without notice.
For additional information, please visit
https://product.tdk.com/en/power/py
.
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