Description / توضیحات
Model 1756-PB75
Input voltage range
18 32V DC(1)
Input voltage, nom 24V DC
Input power, max 95 W
Output power, max
75 W @ 0 60°C (32 140°F)(2)
Power consumption
25 W @ 0 60°C (32 140°F)
Power dissipation 68.2 BTU/hr
Hold-up time(3)
35 ms @ 18V DC
40 ms @ 24V DC
40 ms @ 32V DC
Inrush current, max 30 A
Current capacity at 1.2V DC 1.5 A
Current capacity at 3.3V DC 4 A
Current capacity at 5.1V DC 10 A
Current capacity at 24V DC 2.8 A
Overcurrent protection, max
User-supplied 15 A(4)
Fusing
Non-replaceable fuse is soldered in place(5)
Transformer load, max 100VA
Isolation voltage
250V (continuous), reinforced insulation type, power input-to-backplane
Type tested @ 3500V DC for 60 s
Weight, approx 0.95 kg (2.10 lb)
Dimensions 14.0 x 11.2 x 14.5 cm (5.51 x 4.41 x 5.71 in.)
Module location Left side of 1756 chassis
Chassis compatibility Series A, Series B
Wire size
2.5 mm2 (14 AWG) solid or stranded copper wire rated at
90?C (194?F), or greater, 1.2 mm (3/64 in.) insulation max
Wire category
1-on power ports(6)
Conductor screw torque
0.8 N m (7 lb in)
North American temperature code T4
IEC temperature code T4
Enclosure type rating None (open-style)
UL certification for 24V DC nominal. Rockwell Automation specified 18 32V DC.
The combination of all output power (5.1V backplane, 24V backplane, 3.3V backplane, and 1.2V backplane) cannot exceed 75 W.
The hold-up time is the time between input voltage removal and DC power failure.
Use time-delay type overcurrent protection in all ungrounded conductors.
This fuse is intended to guard against fire hazard due to short circuit conditions.
Use this conductor category information for planning conductor routing as described in the system level installation manual.
