1746-P2 AB
About 1746-P2
Allen Bradley 1746-P2 is an SLC 500 modular power supply. Its input voltage is 85-132 volts or 170-265 volts AC, with a frequency of 47-63 hertz. Its internal current capacity is 5 A at 5V and 0.96 A at 24V. The power supply also has a maximum user provided overcurrent protection of 15 A and a maximum surge current of 20 A. It has a typical line power requirement of 180 VA and a 1800 V AC RMS input terminal and backplane isolation for 1 second. The user power supply current capacity at 24V DC is 200 mA, and the user power supply voltage range (also at 24V DC) is 18-30V DC.
Each terminal can have up to two AWG wires. The 1746-P2 power supply has a fuse protection function, but is limited to preventing fire hazards caused by short circuits. It comes with an open shell and can only be installed in the 1746 chassis. The entire power supply size is 5.5 x 2.9 x 5.7 inches and weighs 1.1 kilograms or 2.5 pounds. Its working temperature is 0-60 degrees. centigrade.
1746-P2 is a power module primarily designed for use on the SLC 500 automation system platform. This power supply is installed on the far left side of the SLC chassis.
The installation location of this power supply is not included in the number of slots. The slot count starts from slot zero (0), which is reserved for programmable logic controller (PLC) processors or SLC 500 communication adapters.
After opening the front cover of the power supply, the front panel of the power supply is exposed. This power supply has five (5) terminals, jumper pins, and internal fuses. These terminals are designed to accommodate AC line connections and DC power connections. One terminal serves as the grounding terminal. The internal fuse has an equivalent part number replacement of 1746-F2. The jumper pin is used to set the correct input voltage setting, whether it is 100/120 VAC or 200/240 VAC.
Avoid electric arcs when using the power supply. Disconnecting or connecting the wires of the active power supply may generate an arc, which may damage the electronic backplane. It is important to perform operations when the input power is inactive. The power module itself is sensitive to voltage surges that may occur when starting high inductance electrical loads. To avoid damage to the power module, install a isolation transformer to prevent voltage surges from entering the power supply.
This power supply has a hold time of 20 milliseconds (full load) and 3000 milliseconds (no load). This feature allows the PLC processor to continue operating even if the power input voltage is below the nominal power level.
