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Introduction

The Allen-Bradley 1746-P2 is an SLC 500 modular power supply. It comes with an input voltage of 85-132 or 170-265V AC at 47-63 Hz. Its internal current capacity at 5V is 5 A and it is 0.96 A at 24V. This power supply also comes with a maximum user-supplied overcurrent protection of 15 A and a maximum inrush current of 20 A. It has a 180 VA typical line power requirement and an input terminal and backplane isolation of 1800V AC RMS for 1 s. User-power current capacity at 24V DC is 200 mA and the user-power voltage range of the power supply, also at 24V DC, is 18-30V DC. It has a maximum of two AWG wires per terminal. Fuse protection is present with the 1746-P2 power supply but it is limited to guarding against fire hazards due to short-circuit conditions. It comes with an open-type enclosure and can only be installed in a 1746 chassis. The entire power supply measures 5.5 x 2.9 x 5.7 inches and weighs 1.1 kg or 2.5 lbs. Its operating temperature is from 0-60 Deg. Celsius. This power supply module has a jumper terminal that is used to set the input voltage to be applied to the device. When undervoltage operation happens, the 1746-P2 power supply will continue to power up the SLC 500 controllers for a short period. When the power supply continues to receive input voltage that is lower than the recommended operating range for a period of time longer than the CPU hold-up time, the controllers will turn off. It will only resume operations automatically when the power supply receives the recommended operating input voltage. For overcurrent conditions, the 1746-P2 Series A and B will undergo a power supply shutdown and CPU fault. The recovery procedure is to reload the user program. For the 1746-P2 Series C, it will have a 24V DC user shutdown but the CPU continues its operation and the recovery procedure is to correct the overcurrent condition. The 1746-P2 is a Power supply module primarily designed for use with the SLC 500 automation system platform. This power supply is installed in the leftmost of the SLC chassis.

Allen Bradley Main Products:

1. SLC500:1747/1746 series 2.MicroLogix: 1761/1763/1762/1766/1764 series 3.CompactLogix: 1769/1768 series 4. The ControlLogix: 1756/1794/1760/1788 series 5. PLC-5:1771/1785 series 6.2711,2711P PanelView man-machine interface, touch screen, operation panel 7.22A,22B, 20 small frequency converter,150 soft starter 8. ProSoft: MVI69 / PS69 / MVI56 / MVI94 / MVI71 / MVI46/3150 9. ICS TRIPLEX: T8431 / T8461 / T3401 / T8310

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