{"product_id":"allen-bradley-1771-p4s-plc-5-power-supply-module","title":"Allen Bradley 1771-P4S PLC-5 Power Supply Module","description":"\u003ch2\u003eAllen Bradley 1771-P4S PLC-5 Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen Bradley 1771-P4S\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-P4S\u003c\/strong\u003e Power Supply Module, operates as a dedicated hardware component for backplane power conversion within PLC-5 1771 chassis platforms. The module converts 120 VAC input power into a 5 VDC backplane supply with an 8 A output capacity.\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\u003e1771-P4S\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePLC Power Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5 \/ 1771 Product Family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.94 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1-slot module width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e59 W maximum real input power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e97-132 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Output Current\u003c\/td\u003e\n\u003ctd\u003e8 A at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Apparent Input Power\u003c\/td\u003e\n\u003ctd\u003e89 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Transformer Load\u003c\/td\u003e\n\u003ctd\u003e148 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e1.5 A, 250 V slow-blow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size\u003c\/td\u003e\n\u003ctd\u003e14 AWG maximum, single wire only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Width\u003c\/td\u003e\n\u003ctd\u003e1 slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Chassis\u003c\/td\u003e\n\u003ctd\u003e1771-A1B, 1771-A2B, 1771-A3B, 1771-A4B Universal I\/O Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePLC-5 Backplane Power Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1771-P4S provides regulated 5 VDC power to the PLC-5 1771 chassis backplane. The module occupies one chassis slot and supports parallel connection with compatible power supply units including -LSP, -LWP, -XP, -ZP, and additional -P4S units for increased system power capacity.\u003c\/p\u003e\n\u003cp\u003eThe power supply architecture is designed for PLC-5 I\/O rack configurations, supplying backplane current for installed controller and I\/O modules. The module uses the 1771-CT cabling configuration for supported parallel power arrangements.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What input power specification is required for the 1771-P4S?\u003cbr\u003eA: The module requires 97-132 VAC input power at 47-63 Hz, with a nominal input voltage of 120 VAC.\u003c\/p\u003e\n\u003cp\u003eQ: What output does the 1771-P4S provide to the chassis backplane?\u003cbr\u003eA: The module provides 5 VDC backplane power with a maximum output current of 8 A.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1771-P4S be connected in parallel with other power supplies?\u003cbr\u003eA: Yes. The module supports parallel cabling and pairing with specified 1771 power supply models for increased output capacity.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-P4S module in the designated power supply slot of a compatible 1771 chassis. Verify that the chassis configuration supports the module before installation.\u003c\/p\u003e\n\u003cp\u003eConnect AC input wiring according to terminal block requirements and maintain correct conductor sizing. Ensure the protective grounding connection follows the installation site's electrical standards.\u003c\/p\u003e\n\u003cp\u003eWhen using parallel power supply configurations, install approved cabling and verify compatibility between connected supply modules. Confirm input voltage, fuse condition, and backplane power availability before applying system power.\u003c\/p\u003e\n\u003cp\u003eKeep AC power wiring separated from low-level signal wiring to reduce electrical interference. Perform voltage verification at the chassis backplane before installing or replacing I\/O modules.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43702410182746,"sku":"1771-P4S","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-P4S1.jpg?v=1784690920","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-p4s-plc-5-power-supply-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}