{"product_id":"x20so4120-b-r-x20-series-4-channel-high-current-safe-output-module","title":"X20SO4120 B\u0026R X20 Series 4-Channel High-Current Safe Output Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20SO4120 (X20SO4120)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance, intelligent safety output module designed for the B\u0026amp;R X20 system. Engineered to meet the most stringent safety requirements (up to SIL 3 \/ PLe), this module features 4 safe digital Type A outputs, each capable of delivering up to 2 A of current. This high-current capacity makes the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20SO4120\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eideal for directly driving larger safety actuators, heavy-duty contactors, and hydraulic valves without the need for interposing relays. With integrated OSSD (Output Signal Switching Device) functionality and a diagnostic pulse width of less than 500 microseconds, the module ensures continuous monitoring for short circuits and cross-faults, maintaining maximum safety integrity in high-speed automated environments such as metal forming, robotic cells, and heavy material handling.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe hardware of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20SO4120\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis built for transparency and resilience. It features individual current monitoring for each channel, allowing the Safety CPU to detect \"stuck-at\" faults or load anomalies in real-time. The module identifies itself in the system via the B\u0026amp;R ID code 0x2007 and provides comprehensive visual diagnostics through LEDs indicating I\/O function per channel, operating state, and general module status. Power management is highly efficient, with a bus consumption of just 0.25 W, while the internal I\/O circuitry draws 1.3 W. By utilizing the openSAFETY protocol, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20SO4120\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides a seamless, deterministic safety loop that minimizes the time between a fault detection and the transition to a Safe State.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX20SO4120\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eB\u0026amp;R Industrial Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eB\u0026amp;R ID Code\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0x2007\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSafe Digital Output (Type A)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Outputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 A per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOSSD Pulse Width\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLess than 500 microseconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Monitoring\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntegrated (Per channel)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption (Bus)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.25 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption (I\/O)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.3 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Certification\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSIL 3, PLe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 2 A rating of the X20SO4120 compare to the X20SO4110?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe X20SO4120 provides a significantly higher output capacity (2 A per channel) compared to the X20SO4110 (0.5 A). This allows the 4120 variant to drive high-power inductive loads like large DC brakes or pneumatic manifolds directly, which would otherwise exceed the current limits of standard safe output modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat diagnostics are available via the status indicators?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module features LEDs for \"Operating State\" and \"Module Status,\" which indicate if the module is in safe-run mode, pre-operational mode, or a fail-safe state. Additionally, individual \"I\/O function\" LEDs light up when an output is energized, and flash patterns can indicate specific faults like short circuits or overcurrent.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the OSSD pulse width adjustable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u0026lt;500 microsecond pulse width is a fixed hardware characteristic designed to ensure that the \"off-test\" is too fast for the mechanical contacts of a relay or valve to respond, thus preventing chattering while maintaining a high diagnostic coverage.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Current Calculations:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a 2 A capacity per channel, a fully loaded module can draw up to 8 A. It is critical to ensure that the X20 power supply module (e.g., X20PS) feeding this segment is rated for the cumulative peak current and that the supply wiring is of sufficient gauge to prevent voltage drops during simultaneous switching.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInductive Load Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen controlling large inductive loads, the back-EMF can be substantial. Although the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20SO4120\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehas internal protection, adding an external recovery diode or varistor at the load side is recommended for 2 A applications to reduce electromagnetic noise and thermal stress on the module’s transistors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafe Wiring separation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo maintain the SIL 3 rating, keep the safe output wiring physically separated from high-voltage AC cables. Use shielded cables for the 24 VDC lines if they run parallel to motor cables for long distances to prevent induced voltages from interfering with the OSSD pulse detection logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"B\u0026R","offers":[{"title":"Default Title","offer_id":53102123221355,"sku":"X20SO4120","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/x20so4120-yg4pagivrrk.png?v=1776138228","url":"https:\/\/www.plcprotech.com\/products\/x20so4120-b-r-x20-series-4-channel-high-current-safe-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}