PMC-24V300W1BA Datasheet, PDF (9/14 Pages) Delta Electronics, Inc. – 24V 300W 1 Phase

Panel Mount Power Supply
Technical Information
PMC-24V300W1BA
 Over Load Protection
The Power Supply is provided with an overload protection (OLP/OCP) function which protects the
power supply from possible damage by over current. Additionally power supply also has over
temperature protection (OTP) in case the over load condition persists for a longer duration and is
below the overload trigger point but > 100% load.
Typically the over load current (I_OL) is > I_SURGE (120%) output voltage will start drooping down when
the power supply reaches max power limit and will run into bouncing mode when the output reaches
UVLO (under voltage point). The output voltage will recover automatically when the overload
condition is removed.
 Short Circuit Protection
The Power Supply also has a short circuit protection which is in line with the overload protection and
activates whenever there is a short across the output voltage, output goes in bouncing mode and
remains until the fault is removed.
 Over Temperature Protection
Additionally power supply also has over temperature protection (OTP) as mentioned above this OTP
comes into picture when the over load condition persists for a longer duration and the output current
level is below the overload trigger point but > 100% load.
Also in the event of a higher ambient operating condition with 100% load the power supply will run
into OTP when the Ambient temperature is > 55°C. The protection is self recoverable when activated
output voltage bounces until the operating ambient temperature of the power supply is reduced or
the power supply is used within its power derating curve.
9/9
3/21/2011
Rev: 01,