Part Number / Catalog No.: 1768-PA3

Product Type: Power Supply Module

Module Type: AC Power Supply Module

Input Power: 85…265V AC; 108…132V DC

Input Frequency Range: 47…63 Hz (for 85…265V AC)

Input Power (Max): 120 VA / 120 W

Power Consumption: 33.6 W

Power Dissipation: 7.5 W

Power Dissipation (Max): 30 W

Efficiency: 75% (Typical)

Isolation Voltage: 30 V Continuous

Backplane Current: 1.4 A at 24 V

Shipping Weight: 2 lbs (approx. 0.91 kg)

The 1768-PA3 is a power supply module.  It is a dual-input power supply whose primary purpose is to provide power through the backplane.  This power supply operates at 85 - 265VAC or 108 -132VDC.  Before powering up the system, install controller in the same bank as the power supply.  To avoid issues, never install a 1769 power supply to a backplane.

The 1768-PA3 module has an open-type enclosure and it can be mounted using DIN rail or panel mount.  LED status indicators let the user monitor the module’s current state in real time.  The 1768-PA3 can be from Series A or B and has a wiring category of 1 for the power ports.  Its compatible wire sizes are 14 to 22 AWG stranded or solid copper wire rated at 167 degrees Fahrenheit with a maximum isolation of 1.2 millimeters.  The 1768-PA3 has an internal overcurrent protection due to the soldered non-replaceable fuse.  It also comes with a user-supplied maximum overcurrent protection of 15 Amps and its typical efficiency rate is 75%, and a maximum input power of 120 VA or 120 W.  The 1768-PA3’s maximum inrush current is 50 Amps at 85 to 132 Volts AC and 80 Amps at 195 to 265 Volts AC while its power dissipation is 30 W.

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