{"product_id":"allen-bradley-1756-pb75-a-controllogix-dc-power-supply-module","title":"Allen-Bradley 1756-PB75\/A ControlLogix DC Power Supply Module","description":"\u003ch2\u003eAllen-Bradley 1756-PB75\/A ControlLogix DC Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-PB75\/A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-PB75\u003c\/strong\u003e DC Power Supply Module, operates as a dedicated hardware component for regulated DC power distribution within ControlLogix chassis platforms. The module converts 24 VDC input power into multiple backplane voltage rails for installed controller and I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-PB75\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.16 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e140 x 112 x 145 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e95 W maximum input power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eControlLogix DC Power Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal, 18 to 32 VDC range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Power\u003c\/td\u003e\n\u003ctd\u003e75 W at 0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Voltages\u003c\/td\u003e\n\u003ctd\u003e1.2 VDC, 3.3 VDC, 5.1 VDC, 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity\u003c\/td\u003e\n\u003ctd\u003e1.5 A at 1.2 VDC, 4 A at 3.3 VDC, 13 A at 5.1 VDC, 2.8 A at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Inrush Current\u003c\/td\u003e\n\u003ctd\u003e30 A peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHold-up Performance\u003c\/td\u003e\n\u003ctd\u003e10 ms interruption, 60% voltage dips for 100 ms, 100% voltage dips for 50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V continuous isolation voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Test\u003c\/td\u003e\n\u003ctd\u003eReinforced insulation tested at 3500 VDC for 60 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Compatibility\u003c\/td\u003e\n\u003ctd\u003e1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Location\u003c\/td\u003e\n\u003ctd\u003eLeft side of 1756 chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Requirement\u003c\/td\u003e\n\u003ctd\u003e14 AWG stranded or solid copper wire, Category 1 power wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eControlLogix Backplane Power Distribution Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PB75\/A provides regulated multi-voltage output through the ControlLogix backplane bus. The module supports I\/O density scaling by supplying defined current capacity across the chassis voltage rails, including the 5.1 VDC and 24 VDC distribution paths used by installed modules.\u003c\/p\u003e\n\u003cp\u003eThe unit is designed for ControlLogix system architectures requiring chassis-level DC power conversion. The power supply module operates independently from application logic execution while maintaining electrical separation between external 24 VDC input and internal backplane distribution.\u003c\/p\u003e\n\u003cp\u003eThe module supports firmware flash compatibility within the ControlLogix hardware platform and maintains compatibility with chassis configurations specified for the 1756 product family.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: What is the installation position of the 1756-PB75\/A in a ControlLogix system?\u003cbr\u003eA: The module is installed on the left side of the 1756 chassis and provides power to the chassis backplane.\u003c\/p\u003e\n\u003cp\u003eQ: What backplane voltages are generated by the 1756-PB75\/A?\u003cbr\u003eA: The power supply provides regulated 1.2 VDC, 3.3 VDC, 5.1 VDC, and 24 VDC backplane voltage outputs.\u003c\/p\u003e\n\u003cp\u003eQ: What type of field wiring is specified for the power input connection?\u003cbr\u003eA: The module uses 14 AWG stranded or solid copper wire with Category 1 wiring classification on the power ports.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-PB75\/A only in compatible 1756 chassis configurations and mount the module in the designated left-side power supply position. Verify input polarity and DC voltage range before energizing the system.\u003c\/p\u003e\n\u003cp\u003eUse copper conductors suitable for industrial control power wiring and maintain separation between DC power cables and high-noise switching circuits. Connect protective grounding according to the control cabinet grounding design and apply standard shielding practices where shielded wiring is used.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify total chassis power loading against the installed module requirements and confirm that the power supply output capacity is sufficient for all connected ControlLogix modules.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43627623153754,"sku":"1756-PB75\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-PB751.jpg?v=1778048110","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-pb75-a-controllogix-dc-power-supply-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}