Rockwell Automation 1768-PA3_PB3 CompactLogix Power Supplies Installation Instructions - Manual (Page 27)

1768 CompactLogix Power Supplies 27
Publication 1768-IN001B-EN-P - July 2006
Specifications
1768-PA3 and 1768-PB3, CompactLogix Power Supplies
Attribute 1768-PA3 1768-PB3
Efficiency 75% Typical 80% Typical @ 24V dc
Enclosure Type Rating None (open-style) None (open-style)
Input Voltage Range 85…265V ac
108…132V dc 16.8-31.2V dc
Input Frequency Range 47…63 Hz (85…265V ac) N/A
Input Power, Max 120 VA/120 W 112 W @ 24V dc
Inrush Current, Nom 25 A @ 85…132V ac
50 A @ 195…265V ac
25 A @ 108…132V dc
30 A @ 16.8...31.2V dc
(2)
Inrush Current, Max 50 A @ 85…132V ac
80 A @ 195…265V ac
50 A @ 16.8...31.2V dc
(2)
North American Temp Code T4 T5
Power Dissipation, Max 30 W 22 W @ 24V dc
Isolation Voltage 250V, Reinforced Insulation Type,
input to system and 24V dc AUX,
Tested at 4250V dc for 60 s
150V, Basic Insulation Type, 24V dc
AUX to system, Tested at 2200V dc for
60 s 250V, Reinforced Insulation Type,
input to system and 24V dc AUX,
Tested at 4250V dc for 60 s
150V, Basic Insulation Type, 24V dc
AUX to system, Tested at 2200V dc
for 60 s
Internal Overcurrent
Protection Non-replaceable fuse is soldered in place.
Recommended External
Overcurrent Protection
4…6 A @ 28.5…36.7 A
2
S 8...12 A @ 166...250 A
2
S
Overcurrent Protection, Max 15 A, user supplied
Wire Size, Input Power
Terminal
14 AWG (2.5 mm
2
) solid or stranded copper wire rated at 75 °C (167°C) or
greater, 1.2 mm (3/64 in.) insulation maximum
Wire Size, Output Power
Terminal
2.5 mm
2
(14 AWG )… 0.25 mm
2
(22 AWG) solid or stranded copper wire rated
at 75 °C (167 °C) or greater, 1.2 mm (3/64 in.) insulation maximum
Wiring Category
(1) 1- on power ports
Conductor Screw Torque 0.6 Nm (5 lb-in)
Dimensions (HxWxD),
Approx. 131.25 x 132.75 x 105.50 mm (5.17 x 5.23 x 4.15 in.)
Weight, Approx. 0.98 kg (2.15 lb) 1.01 kg (2.22 lb)
Continuous Output Power
90 W, Max 24V dc to backplane: 3.5 A
24V dc to user accessible terminal block: 0.25 A
Continuous Output Power
6W, Min 24V dc to backplane: 0.25 A
24V dc to user accessible terminal block: 0.0 A