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PB256 Datasheet, PDF (1/2 Pages) Powerbox – 138 WATTS DC UPS
PB256 Series
138 WATTS DC UPS
Features
• Ultra-low noise output
• Independent load & battery charging current
limiting
• DC output OK & battery OK alarms & LEDs
• Battery-LVD and low alarm
• Over-temperature protection
• Battery fuse fail LED
Specifications
INPUT
Voltage
Line regulation
Current
Inrush current
Frequency
OUTPUT
Voltage
Current
Load regulation
Current limit type
(Load circuit)
Current limit type
(Battery circuit)
Short circuit protection
Over-voltage protection
Ripple & noise
190...264 vac, or 190...400VDC
0.2% typical
3A maximum
15A on cold start
45 to 65 Hz
See table
See table
2% typical
Constant current > LVD volts
Foldback & hiccup < LVD volts
Constant current
Indefinite, auto-resetting
15.5 to 19.5 V latching (13.8Vdc output)
31.5 to 39 V latching (27.6Vdc output)
25 mVp-p (13.8Vdc output)
45mVp-p (27.6Vdc output)
ENVIRONMENTAL
Operating temperature &
humidity
Over-temperature protection
0 to 50oC ambient with derating;
5 to 90% relative humidity (noncondensing)
Automatic & auto-resetting
Cooling requirement
Natural convection
Efficiency
80% minimum
STANDARDS & APPROVALS
Safety
Complies with AS/NZS 60950, class 1
EMC
Emissions comply with AS/NZS CISPR11, Group
1, Class B. Complies with ACA EMC Scheme, C-
Tick
Isolation input - output
input - ground
output - ground
4242VDC for 1 minute
2121VDC for 1 minute
707VDC for 1 minute
ALARMS & BATTERY SPECIFIC FUNCTIONS
Charger output OK alarm
Battery low alarm
Indicated by voltage-free changeover relay
contacts & green LED: ON=OK
VBATT< 11.3V 12V BATT < 22.6 V24V BATT
Indicated by voltage-free changeover relay
contacts & green LED: ON=OK
Low voltage disconnect:
10.8V (Typical for 12Vdc battery)
21.6V (Typical for 24Vdc battery)
Battery over-load protection Electronic circuit breakerauto-reset
Reverse polarity protection Internal fuse
Battery to load voltage drop 0.4 V (13.8V output)
0.2 V (27.6V output)
MECHANICAL
Case size
230 L x 93 W x 46 H (mm)
Weight
850g
290