{"product_id":"v23050-a1110-a551-2-pack","title":"Schrack V23050-A1110-A511 Safety Relay (2 pack)","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"4\"\u003eSchrack V23050-A1110-A551\u003c\/b\u003e (part of the \u003cb data-path-to-node=\"1\" data-index-in-node=\"43\"\u003eSR6\u003c\/b\u003e series by TE Connectivity) is a specialized \u003cb data-path-to-node=\"1\" data-index-in-node=\"91\"\u003eForce-Guided Safety Relay\u003c\/b\u003e. In the elevator industry, this component is critical for \"Safety Integrity\" monitoring. Its design ensures that the Normally Open (NO) and Normally Closed (NC) contacts are mechanically linked; if one contact welds, the others are physically prevented from moving, allowing the controller to detect a hardware fault and prevent the car from running.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eCore Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"3\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,0,0\"\u003e\u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"0\"\u003eManufacturer:\u003c\/b\u003e Schrack (TE Connectivity)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,1,0\"\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"0\"\u003ePart Number:\u003c\/b\u003e V23050-A1110-A551\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003e\u003cb data-path-to-node=\"3,2,0\" data-index-in-node=\"0\"\u003eRelay Type:\u003c\/b\u003e Force-Guided (Safety)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,3,0\"\u003e\u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"0\"\u003eNumber of Poles:\u003c\/b\u003e \u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"17\"\u003e6-Pole (5 NO \/ 1 NC)\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,4,0\"\u003e\u003cb data-path-to-node=\"3,4,0\" data-index-in-node=\"0\"\u003eCoil Voltage:\u003c\/b\u003e 110V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,5,0\"\u003e\u003cb data-path-to-node=\"3,5,0\" data-index-in-node=\"0\"\u003eContact Rating:\u003c\/b\u003e 8A @ 250V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,6,0\"\u003e\u003cb data-path-to-node=\"3,6,0\" data-index-in-node=\"0\"\u003eCoil Resistance:\u003c\/b\u003e Approx. \u003cspan class=\"math-inline\" data-math=\"10,080 \\Omega\" data-index-in-node=\"25\"\u003e$10,080 \\Omega$\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,7,0\"\u003e\u003cb data-path-to-node=\"3,7,0\" data-index-in-node=\"0\"\u003eContact Material:\u003c\/b\u003e Silver Tin Oxide (AgSnO₂)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eElevator Logic\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003e5 NO \/ 1 NC Configuration:\u003c\/b\u003e This specific contact arrangement provides five \"Normally Open\" paths for high-voltage logic (such as safety string segments or brake power) and one \"Normally Closed\" path used strictly for microprocessor feedback\/monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eSafety String Monitoring:\u003c\/b\u003e Used to monitor the state of the safety string (emergency stops, final limits, and pit switches) to provide a redundant signal to the microprocessor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eRedundant Brake Control:\u003c\/b\u003e Frequently employed in the brake monitoring circuit. The 110V DC coil matches common brake voltages, while the force-guided contacts verify the brake has physically dropped before the next run.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"0\"\u003eFault Detection:\u003c\/b\u003e If any of the 5 NO contacts weld shut, the 1 NC contact is mechanically prevented from closing. The controller sees this \"mismatch\" and prevents the elevator from restarting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"7\"\u003e\n\u003ch3 data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eAccessories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eSR6 DIN-Rail Socket:\u003c\/b\u003e Allows the PCB-style relay to be mounted on a standard 35mm DIN rail for easier field replacement in controller cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eRetaining Clip:\u003c\/b\u003e A metal or plastic spring clip used to secure the relay into a socket in high-vibration environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eRC Snubber \/ Varistor:\u003c\/b\u003e Used across the 110V DC coil to suppress the inductive \"kick\" when the relay de-energizes, protecting the driving transistor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eMarking Tags:\u003c\/b\u003e Snap-on labels to identify the relay's specific function (e.g., \"SMR\" for Safety Monitor Relay).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eMaintenance \u0026amp; Code\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eCSA B44 Compliance:\u003c\/b\u003e Under \u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"26\"\u003eCanadian Elevator Code (B44)\u003c\/b\u003e, any single failure in a safety-related circuit must not allow the elevator to start or run. This relay is a primary tool for achieving \"single-failure-proof\" logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003e5\/1 Split Verification:\u003c\/b\u003e Ensure the correct version is installed. Replacing an \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"78\"\u003e-A551\u003c\/b\u003e (5 NO\/1 NC) with an \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"104\"\u003e-A533\u003c\/b\u003e (3 NO\/3 NC) will cause immediate logic faults as the controller will not receive the expected feedback signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eContact Resistance Testing:\u003c\/b\u003e If the elevator is stuck on a \"Redundancy Fault,\" check the resistance of the NC contact while the coil is de-energized. High resistance (above \u003cspan class=\"math-inline\" data-math=\"0.5 \\Omega\" data-index-in-node=\"172\"\u003e$0.5 \\Omega$\u003c\/span\u003e) indicates carbon buildup or pitting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eReplacement Warning:\u003c\/b\u003e \u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"21\"\u003eNever\u003c\/b\u003e replace a V23050 force-guided relay with a standard 110V general-purpose relay. Standard relays lack the mechanical linkage required for safety monitoring and will void the B44 code compliance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R.A.M. Parts","offers":[{"title":"Default Title","offer_id":47580789276824,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/4369\/5000\/files\/rn-image_picker_lib_temp_851125e7-dc98-4a74-b323-d7a91b886aa8.jpg?v=1772733992","url":"https:\/\/parts4rem.ca\/products\/v23050-a1110-a551-2-pack","provider":"Parts4REM","version":"1.0","type":"link"}