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Mean Well DUPS20 - Mounting Instruction; Warning and Caution; General Safety Warnings; Installation Environment

Mean Well DUPS20
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Installation Manual
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8Mounting Instruction
Mount as shown in figure only, with input terminals down, or else sufficient cooling will not be possible.
Admissible DIN railTS35/7.5 or TS35/15
For rail fastening
aTilt the unit slightly rearwards.
bFit the unit over top hat rail.
cSlide it downward until it hits the stop.
dPress against the bottom for locking.
eShake the unit slightly to check the locking action.
9For other information about the products, please refer to www.meanwell.com for details.
Warning / Caution !!
1Risk of electrical shock and energy hazard. All failure should be examined by a qualified technician. Please do
not remove the case of the power supply by yourself!
2Risk of electric arcs and electric shock (danger to life). Connecting both the primary and the secondary sides
together is not allowed.
3Risk of burn hazard. Do not touch the unit in operation and shortly after disconnection!
4Risk of fire and short circuit. The openings should be protected from foreign objects or dripping liquids.
5Only install the unit in a pollution degree 2 environment (Note.1).
6Please do not install the unit in places with high moisture or near the water.
7The maximum operating temperature is 70°C , please do not install the unit in places with high ambient
temperature or near fire source.
8Output current and output wattage must not exceed the rated value on its specification.
9Disconnect system from supply voltage:
Before commencing any installation, maintenance or modification work: Disconnect your system from
supply voltage. Make sure that inadvertent connection in circuit will be impossible!
10For continued protection against risk of fire, replace only with same type and rating of fuse.
Pour ne pas compromettre la protection contre les risqué d’incendie, remplacer par un fusible de même
type et de memes caractéristiques nominales.
Note.1: Pollution Degree 2 applies where there is only non-conductive pollution that might temporarily become
conductive due to occasional condensation. Generally refer to dry, well-ventilated locations, such as
control cabinets.
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