{"product_id":"6es5451-8ma11-siemens-digital-output-module-new-original-stock","title":"6ES5451-8MA11 Siemens Digital Output Module | New \u0026 Original Stock","description":"\u003ch2\u003eSiemens 6ES5451-8MA11 SIMATIC S5 Digital Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSiemens 6ES5451-8MA11\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSIMATIC S5 451\u003c\/strong\u003e Digital Output Module, operates as a dedicated hardware component for discrete load switching within SIMATIC S5-90U\/-95U\/-100U and ET 100U\/200U distributed I\/O network platforms.\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\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\u003e6ES5451-8MA11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.208 kg (0.31 lbs net \/ 0.46 lbs shipping pack bounds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e139 mm x 111 mm x 53 mm (L x W x H)\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 (Standard subrack execution limits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eHigh-side circuit logic derived from internal bus matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e8 digital outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Maximum\u003c\/td\u003e\n\u003ctd\u003e1 A per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003eOptocoupler galvanic isolation between backplane and load fields\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eI\/O Density Scaling and Deterministic Driver Actuation\u003c\/h3\u003e\n\u003cp\u003eThe digital module regulates electrical state switching across 8 isolated channels, outputting up to 1 A continuous per circuit path for external relay coils, contactors, and solenoids. Integrating these outputs into compact subracks establishes clean I\/O density scaling profiles while maintaining precise field loop tracking. The underlying galvanic separation prevents field-side electrical surges from bleeding back into the processing layers, protecting internal backplane bus communication velocity and preventing logic card execution lockouts during high-frequency inductive load switching.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can a single output channel be modified to handle switching loads higher than the rated 1 A threshold?\u003c\/p\u003e\n\u003cp\u003eA: No. Exceeding the 1 A maximum current rating per channel can induce thermal breakdown within the internal output driver components. For switching currents above 1 A, the channel output must drive an external heavy-duty interposing relay.\u003c\/p\u003e\n\u003cp\u003eQ: Is this module capable of being hot-swapped while the ET 100U or ET 200U rack is actively scanning?\u003c\/p\u003e\n\u003cp\u003eA: No. The legacy bus architecture of the S5-100U and companion distributed racks does not support hot-swapping. Power to the rack interface module or local PLC must be fully isolated before removal or insertion to avoid backplane communication disruption.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBus Connector Mounting:\u003c\/strong\u003e Clip the module firmly onto the standard DIN rail terminal block unit, ensuring the rear blade terminals seat completely into the underlying bus connector segment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Block Wiring:\u003c\/strong\u003e Terminate all 24 V DC load and return wiring securely into the matching front connector strip pins, limiting bare wire exposure to prevent cross-terminal short circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Suppressor Retrofit:\u003c\/strong\u003e Connect external flyback suppression diodes directly parallel to any connected inductive DC loads to limit switching transients and protect the internal solid-state output circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":43441528504410,"sku":"6ES5451-8MA11","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/221._fb542b78-14dc-4587-b78b-f0704b4d053e.jpg?v=1780367033","url":"https:\/\/www.spareoil.com\/products\/6es5451-8ma11-siemens-digital-output-module-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}