{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RUMC3AB2BD","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"RUMC3AB2BD","canonicalUrl":"https://aoctrl.com/schneider/RUMC3AB2BD","factsUrl":"https://aoctrl.com/api/mcp/products/RUMC3AB2BD","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Harmony RUM series, plug-in relay, 24 V DC coil, 3 C/O contacts, 10 A rated current, IP40, with status LED and lockable test button.","salesMarkdown":"The 10 A AC-1 / DC-1 rating on the normally-open contacts governs resistive loads like heaters or lighting contactors; the normally-closed side is rated 5 A AC-1/DC-1, so if you're switching a motor starter coil or a solenoid on the NC leg, stay under that lower limit. The 2500 VA maximum switching capacity and 280 W DC limit define the absolute ceiling for inrush or inductive loads — don't exceed these even if the 10 A figure looks roomy. Coil holds at 24 V DC nominal, with a dropout threshold >= 0.1 Uc DC — about 2.4 V — so it releases cleanly on a sagging supply. The 470 Ohm coil resistance at 20 °C draws roughly 51 mA; factor that into your 24 V DC power budget if you're ganging several relays on one supply. The IP40 enclosure keeps out tools and fingers but not moisture — mount in a sealed cabinet if washdown is nearby. ## Deployment context The cylindrical pin shape fits standard 11-pin round sockets (e.g., Schneider RXZE2S114M) — common in DIN-rail-mounted terminal blocks or panel-base wiring. The lockable test button lets a commissioning engineer manually latch the relay for circuit checks without energizing the coil, then lock it out to prevent accidental operation during panel work.","metaTitle":"Schneider Electric RUMC3AB2BD Harmony Relay, 24 VDC, 3 C/O,","metaDescription":"Schneider Electric RUMC3AB2BD Harmony plug-in relay, 24 VDC coil, 3 C/O contacts rated 10 A AC-1. UL 508, IEC 61810-1. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"title":"RUMC3AB2BD","Category":"21127-ZELIO ICE CUBE RELAYS","Standards":"UL 508 EN/IEC 61810-1 CSA C22.2 No 14","Status LED":"With","Series name":"Universal","description":"Schneider RUMC3AB2BD Relays & Sockets — now discontinued, supplied from remaining surplus and broker stock.","Control Type":"Lockable test button","Shape of pin":"Cylindrical","Operating rate":"<= 1200 cycles/hour under load","Operating time":"20 ms","lifecycle_stage":"current","Pollution degree":"3","Range of Product":"Harmony Relay","Shock resistance":"10 gnin operation 10 gnnot operating","Contacts material":"AgNi","Device short name":"RUM","Average resistance":"470 Ohm 20 °C +/- 10 %","Compatibility code":"RUM","Operating position":"Any position","Dielectric strength":"1500 V AC between contacts 1550 V AC between coil and contact 1550 V AC between poles","Protection category":"RT I","Vibration resistance":"3 gn +/- 1 mm 10...150 Hz)10 cycles in operation EN/IEC 60068-2-27 4 gn +/- 1 mm 10...150 Hz)10 cycles not operating EN/IEC 60068-2-27","Electrical durability":"100000 cycles resistive","Mechanical durability":"5000000 cycles","IP degree of protection":"IP40 conforming to EN/IEC 60529","Safety reliability data":"B10d = 100000","Utilisation coefficient":"20 %","Maximum switching voltage":"250 V AC IEC 250 V DC IEC","Minimum Switching Current":"10 mA","Minimum switching voltage":"17 V","Product or Component Type":"Plug-in relay","Drop-out voltage threshold":">= 0.1 Uc DC","Maximum switching capacity":"2500 VA AC 280 W DC","Minimum switching capacity":"170 mW","[Uc] control circuit voltage":"24 V DC","Contacts type and composition":"3 C/O","[Ui] rated insulation voltage":"250 V IEC 300 V CSA 300 V UL","[Ie] rated operational current":"10 A AC-1/DC-1 (NO) conforming to IEC 12 A at 28 V DC-1 conforming to UL 16 A at 277 V AC-1 conforming to UL 5 A AC-1/DC-1 (NC) conforming to IEC","Rated operational voltage limits":"19.2...26.4 V DC","Ambient Air Temperature for Storage":"-40...185 °F (-40...85 °C)","Ambient air temperature for operation":"-40...131 °F (-40...55 °C)","[Uimp] rated impulse withstand voltage":"4 kV","[Ithe] conventional enclosed thermal current":"10 A -40...131 °F (-40...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$32.36","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d9e55cc715f2876102c3c11d354e8dd6.pdf","sourceUrl":"https://www.se.com/ae/en/product/RUMC3AB2BD/universal-plugin-relay-harmony-rum-3-c-o-24-v-dc-10-a-with-led/","alternativesUrl":"https://aoctrl.com/api/mcp/products/RUMC3AB2BD/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy RUMC3AB2BD?","answer":"The RUMC3AB2BD is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of RUMC3AB2BD?","answer":"24 V DC coil, 3 C/O contacts, 10 A AC-1/DC-1 on NO (5 A on NC), 2500 VA / 280 W max switching capacity, IP40, with status LED and lockable test button."},{"question":"What standards does RUMC3AB2BD comply with?","answer":"UL 508, EN/IEC 61810-1, and CSA C22.2 No 14."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/RUMC3AB2BD","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/RUMC3AB2BD 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}}