{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RHN421F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"RHN421F","canonicalUrl":"https://aoctrl.com/schneider/RHN421F","factsUrl":"https://aoctrl.com/api/mcp/products/RHN421F","rawCanonicalId":null},"summary":{"shortDescription":"Plug in relay, Zelio Relay, RHN, instantaneous, 4 C/O, 110 V AC 50 Hz, 1 A","salesMarkdown":"## Switching specs and contact arrangement With 1 A continuous current at 110 V AC 50 Hz and four changeover contacts (4 C/O), the Schneider RHN421F handles typical pilot-duty loads in motor starter and PLC output isolation circuits. ## Control voltage margins and drop-out The coil operates reliably between 0.8 and 1.1 times the rated control voltage per IEC 60255, and drop-out occurs between 0.15 and 0.5 Uc — a wide margin that prevents nuisance drop-out on sagging supplies. ## Durability and switching rate Rated for 20 million mechanical cycles and a maximum operating rate of 6 cycles per minute, the RHN421F suits applications with frequent switching like conveyor interlocks or cycling timers. ## Compact footprint and environment Measuring just 33 x 43 x 54 mm with IP20 finger-safe terminals and a -40 °C minimum operating temperature, this relay fits tight enclosures and cold environments without derating.","metaTitle":"RHN421F 1 A 110 V AC 4-pole relay – Schneider","metaDescription":"RHN421F plug-in relay: 1 A, 110 V AC 50 Hz, 4 C/O contacts, IP20, -40 °C operation. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Cos phi":"0.6 (inrush) 0.7 (holding)","Category":"18073-SPARE PARTS DISCOUNT I","Standards":"IEC 60255 VDE 0435 BS 4794 NF C 45-250","Status LED":"Without","Test levels":"Level A group mounting","Control Type":"Manual control","Operating time":"2...15 ms between energisation of coil and closing of NO contact 68 °F (20 °C) 1.2...12 ms between de-energisation of coil and closing of NC contact 68 °F (20 °C) 1...3 ms energisation/de-energisation 0.5...6 ms de-energisation/energisation","lifecycle_stage":"current","Range of Product":"Harmony Relay","Shock resistance":"50 gn 11 ms NF C 20-608","CAD overall depth":"2.1 in (54 mm)","CAD overall width":"1.3 in (33 mm)","Contact operation":"Low level Instantaneous","Device short name":"RHN","Average resistance":"30 mOhm 68 °F (20 °C)","CAD overall height":"1.7 in (43 mm)","Compatibility code":"RHN","Operating position":"Any position","Contact bounce time":"<= 10 ms","Dielectric strength":"2500 V","Maximum voltage drop":"<100 V for 3 A at 24 V","Protective treatment":"TC","Vibration resistance":"6 gn (f= 10...55 Hz) conforming to IEC 60068-2-6 6 gn (f= 10...55 Hz) conforming to NF C 20-616","Mechanical durability":"20000000 cycles","Nbr. of units in pkg.":"1","Maximum Operating Rate":"6 cyc/mn","Product or Component Type":"Plug-in relay","Drop-out voltage threshold":"0.15...0.5 Uc","Minimum switching capacity":"50 mVA 1 mA 50 mVA, 1 V","[Uc] control circuit voltage":"110 V AC 50 Hz","Coil interference suppression":"Without","Contacts type and composition":"4 C/O","[Ui] Rated Insulation Voltage":"250 V","Average coil consumption in VA":"2.5 holding)68 °F (20 °C) 4.5 inrush)68 °F (20 °C)","Control circuit voltage limits":"0.8...1.1 Uc IEC 60255","Terminals description ISO n°1":"(41-42-44)OC (A1-A2)CO (21-22-24)OC (11-12-14)OC (31-32-34)OC","Ambient Air Temperature for Storage":"-40...158 °F (-40...70 °C)","Ambient air temperature for operation":"23...104 °F (-5...40 °C) IEC 60255","[Ithe] conventional enclosed thermal current":"1 A 104 °F (40 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$110.00 – $204.48","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/04c453e0ddf3097da4a3f4aaee366314.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/RHN421F/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/RHN421F","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/RHN421F when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}