{"product_id":"1771-p7-c-allen-bradley-power-supply-module-new-original-stock","title":"1771-P7\/C Allen-Bradley Power Supply Module | New \u0026 Original Stock","description":"\u003ch2\u003eAllen-Bradley 1771-P7\/C 1771 PLC-5 I\/O System Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for converting AC input into regulated DC backplane power in 1771 PLC-5 I\/O System infrastructures, the \u003cstrong\u003eAllen-Bradley 1771-P7\/C\u003c\/strong\u003e (\u003cstrong\u003e1771-P7\u003c\/strong\u003e Power Supply Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1771-P7\/A:\u003c\/strong\u003e Initial hardware revision with standard backplane components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1771-P7\/B:\u003c\/strong\u003e Second design revision featuring updated internal transformers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1771-P7\/C:\u003c\/strong\u003e Current hardware revision with enhanced component footprint for 120\/220 VAC thermal management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1771-P7\/D:\u003c\/strong\u003e Final series production iteration with modified terminal block assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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-P7\/C\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\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC or 220 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\u003eReal Input Power\u003c\/td\u003e\n\u003ctd\u003e108 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Input Power\u003c\/td\u003e\n\u003ctd\u003e176 VA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransformer Load\u003c\/td\u003e\n\u003ctd\u003e270 VA maximum\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\u003eCurrent Capacity\u003c\/td\u003e\n\u003ctd\u003e16 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e1771 I\/O chassis slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e315 x 115 x 159 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.95 kg (3.99 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e108 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1771-P7\/C supplies the required 5 VDC operating current directly across the chassis backplane to sustain backplane bus communication velocity across high-density digital and analog configurations. Stable regulation of the 16 A current capacity is necessary to avoid voltage drops during maximum I\/O density scaling inside the 1771 rack. This ensures that the module firmware flash compatibility and logic execution times of adjacent PLC-5 processors remain deterministic under fluctuating load characteristics.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can multiple 1771-P7\/C modules be wired parallelly to increase the backplane current capacity?\u003c\/p\u003e\n\u003cp\u003eA: No. Parallel connection of multiple 1771-P7\/C units is strictly prohibited. Operating units in parallel can cause unequal load distribution, leading to processor memory loss or erratic machine behavior.\u003c\/p\u003e\n\u003cp\u003eQ: How is the input voltage selection between 120 VAC and 220 VAC configured on the hardware?\u003c\/p\u003e\n\u003cp\u003eA: Input voltage configuration requires matching the physical terminal connections or internal jumper settings specified by the revision schematics prior to energizing the module.\u003c\/p\u003e\n\u003cp\u003eQ: What are the consequences of exceeding the 16 A current rating on the 5 VDC output?\u003c\/p\u003e\n\u003cp\u003eA: Exceeding the 16 A capacity causes a voltage drop on the 5 VDC backplane rail, which forces the PLC-5 processor into a fault state and halts all local I\/O communication.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic Discharge Protection:\u003c\/strong\u003e Personnel must wear grounded wrist straps and utilize static-shielded packaging during handling to prevent permanent damage to the internal semiconductor junctions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Power Constraints:\u003c\/strong\u003e Ensure the 1771 I\/O chassis total current draw does not exceed the 16 A limit at 5 VDC provided by the module. Sum the individual current demands of all populated modules to verify compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input Wiring:\u003c\/strong\u003e Use standard industrial wire Gauges rated for the maximum input load. Terminal screws must be torqued to specified nominal values to minimize terminal resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance for Thermal Dissipation:\u003c\/strong\u003e Maintain standard vertical and horizontal clearance boundaries around the 1771 chassis to permit passive convection cooling and prevent thermal degradation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43425779286106,"sku":"1771-P7\/C","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/190_87dd0fb1-a6e1-4726-a83a-d81de759daf9.jpg?v=1779935135","url":"https:\/\/www.spareoil.com\/products\/1771-p7-c-allen-bradley-power-supply-module-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}