March Products 120 III (PC620) Parameter Min Nom Max Unit, Libra 120 III PC620 Intel 815E 123

User Manual version 2503

G-1-4: OVER VOLTAGE PROTECTION

u+5VDC output: +5.7VDC output min. +6.5VDC output max.

u+12VDC output: +13.3VDC output min. +15.6VDC output max.

u+3.3VDC output: +3.7VDC output min. +4.5VDC output max.

G-1-5: SHORT CIRCUIT PROTECTION

Output short circuit is defined to be a short circuit load of 0.1 ohm. In the event of short circuit condition on +3.3V, +5V or +12V, the power supply will shutdown and latch off. The power supply shall return to normal operation after the short circuit has been removed and the power switch has been turned off for no more than 2 seconds.

In the event of short circuit condition on –12V, the power supply will not latch off. The power supply shall return to normal operation as soon as the short circuit has been removed and the power switch has been turned off for no more than 2 seconds.

G-1-6: AC INPUT LINE REQUIREMENT
Parameter	Min.	Nom.	Max.	Unit
VIN (115VAC)	90	115	135	VAC rms
VIN (230VAC)	180	230	263	VAC rms
VIN Frequency	47	-	63	Hz

uInput current: 4.0A @115VAC, 2.0A @230VAC

uInrush current: 50A @115VAC, 80A @230VAC

uEfficiency: >68% min. @full load, 115VAC & 230VAC

LIBRA 120 III (PC620 Intel 815E) 6-123

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