{"product_id":"440r-n23114-msr126-1t-allen-bradley-safety-relay-guardmaster","title":"440R-N23114 MSR126.1T Allen-Bradley Safety Relay Guardmaster","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 440R-N23114 MSR126.1T\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMSR126.1T\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafety Relay, operates as a dedicated hardware component for dual-channel input monitoring and safety output control within industrial logic platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Suffix Analysis\u003c\/h3\u003e\n\u003cp\u003eThe 440R-N23114 (MSR126.1T) designation indicates a specific hardware revision configured for dual-channel safety gate and emergency stop applications. The .1T suffix specifies the presence of fixed terminal blocks and internal circuitry calibrated for cross-fault detection across the input channels, distinguishing it from single-channel variants.\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\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e440R-N23114 MSR126.1T\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.15 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.2 x 11 x 7.3 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 V AC\/DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConsult Manual\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSafety Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 N.O.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAuxiliary Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 N.C.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eContact Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 A \/ 24 V DC (DC-13)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAllen-Bradley Industrial Control Architecture\u003c\/h3\u003e\n\u003cp\u003eThis module integrates into PLC and control networks by providing deterministic safety state management. It adheres to strict I\/O density scaling requirements within 22.5 mm enclosures, facilitating dense cabinet layouts. The internal logic is compatible with standard EtherNet\/IP safety protocols where gateway interfaces permit. Firmware execution is hardware-locked to ensure deterministic timing of the normally open safety contacts during input fault detection.\u003c\/p\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1 x 440R-N23114 MSR126.1T Safety Relay\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Product specification sheet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Protocols\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMounting: Install the device on a 35 mm DIN rail. Ensure vertical orientation to maintain convection airflow within the enclosure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGrounding: Terminate the safety circuit return to the system protective earth (PE) bus. Maintain separation between safety signal wiring and high-current power cables to prevent induced noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWiring: Utilize copper conductors rated for the operating temperature. Ensure that all terminal connections are secured to prevent vibration-induced loosening.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this relay support hot-swapping?\u003c\/p\u003e\n\u003cp\u003eNo, the 440R-N23114 does not support hot-swapping. Disconnect all power sources before performing maintenance or module replacement to prevent electrical damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the function of the S33-S34 jumper?\u003c\/p\u003e\n\u003cp\u003eThe jumper across S33-S34 configures the relay for automatic reset mode. In this mode, the relay outputs engage immediately when safety inputs are closed, bypassing manual reset requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does cross-fault detection operate?\u003c\/p\u003e\n\u003cp\u003eThe relay monitors the relationship between the two input channels. If a short circuit occurs between the channels, the relay identifies the discrepancy and prevents output activation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the N.C. auxiliary outputs be used for safety functions?\u003c\/p\u003e\n\u003cp\u003eNo, the N.C. auxiliary outputs are for monitoring purposes only and are not rated for safety-critical machine stop functions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the minimum switched current requirement?\u003c\/p\u003e\n\u003cp\u003eThe relay requires a minimum current of 10 mA at 10 V to ensure reliable contact wetting and maintain signal integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the firmware user-upgradable?\u003c\/p\u003e\n\u003cp\u003eNo, the device utilizes fixed internal logic. There is no provision for field firmware updates or user-side configuration of the safety logic parameters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat does the K1\/K2 LED status indicate?\u003c\/p\u003e\n\u003cp\u003eThe green LEDs indicate that the internal redundant safety contacts for channel 1 and channel 2 are closed and the circuit is energized.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs an external feedback loop required?\u003c\/p\u003e\n\u003cp\u003eWhen using a monitored manual reset, the external contactor feedback must be wired in series with the reset button to ensure the relay verifies contactor state before activation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066474188973,"sku":"440R-N23114","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen_bradley_440r-n23114__1.jpg?v=1783849346","url":"https:\/\/www.maxwellplc.com\/ru\/products\/440r-n23114-msr126-1t-allen-bradley-safety-relay-guardmaster","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}