{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RUMC2AB1B7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"RUMC2AB1B7","canonicalUrl":"https://aoctrl.com/schneider/RUMC2AB1B7","factsUrl":"https://aoctrl.com/api/mcp/products/RUMC2AB1B7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Harmony Relay series, RUMC2AB1B7, plug-in relay, 24 V AC coil, 2 C/O contacts, 10 A AC-1 rated operational current, IP40, lockable test button.","salesMarkdown":"The Schneider Electric RUMC2AB1B7 is a plug-in relay from the Harmony Relay range, carrying the category code 21127-ZELIO ICE CUBE RELAYS. It is a 2 C/O (two changeover) contact relay with a 24 V AC coil, rated for 10 A in AC-1 resistive duty per IEC. The lockable test button lets a panel builder manually latch the contacts during commissioning without energizing the coil — useful when checking wiring continuity before power-up. The 24 V AC control voltage has a tolerance band of 19.2 to 26.4 V AC, so a lightly loaded control transformer that reads 26 V at no load is still within spec. Drop-out threshold is at least 0.15 Uc AC, meaning the relay releases cleanly when the control signal falls below about 3.6 V AC — no chatter on a sagging line. The NO contacts carry 10 A AC-1/DC-1 per IEC, 12 A at 28 V DC-1 per UL, and 16 A at 277 V AC-1 per UL. The NC contacts are rated 5 A AC-1/DC-1 per IEC. AC-1 is resistive load — heaters, incandescent lamps, resistive elements. If you are switching a motor contactor coil or a solenoid, that is AC-15 duty, and you need to derate. Maximum switching capacity is 2500 VA AC or 280 W DC, with a maximum switching voltage of 250 V AC or 250 V DC. Minimum switching is 10 mA at 17 V, 170 mW — so it will reliably wet low-signal loads like a PLC digital input. Contact material is silver-nickel (AgNi), a standard choice for general-purpose switching. Electrical durability is 100,000 cycles at rated resistive load; mechanical durability is 5,000,000 cycles. The utilization coefficient is 20 %, meaning the relay is rated for intermittent duty at 1200 cycles/hour under load — continuous full-load cycling at that rate will exceed the thermal capacity of the contact set. ## Standards, approvals, and environmental ratings The RUMC2AB1B7 is certified to EN/IEC 61810-1 (electromechanical elementary relays), CSA C22.2 No 14, and UL 508 (industrial control equipment). Rated insulation voltage is 250 V IEC, 300 V CSA/UL. Vibration resistance is 3 gn (operating) and 4 gn (non-operating) over 10 to 150 Hz per EN/IEC 60068-2-27. Shock resistance is 10 gn in operation and 10 gn non-operating. Dielectric strength is 1500 V AC between contacts, 1550 V AC between coil and contact, and 1550 V AC between poles — adequate for 250 V AC line isolation in a basic insulated panel.","metaTitle":"Schneider Electric RUMC2AB1B7 Harmony Relay, 24 V AC, 2 C/O,","metaDescription":"Schneider Electric RUMC2AB1B7 plug-in relay, 24 V AC coil, 2 C/O contacts rated 10 A AC-1. EN/IEC 61810-1, CSA, UL 508. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"title":"RUMC2AB1B7","Category":"21127-ZELIO ICE CUBE RELAYS","Standards":"EN/IEC 61810-1 CSA C22.2 No 14 UL 508","Status LED":"Without","Series name":"Universal","description":"Schneider RUMC2AB1B7 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":"72 Ohm 20 °C +/- 15 %","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":">= 0.15 Uc AC","Maximum switching capacity":"2500 VA AC 280 W DC","Minimum switching capacity":"170 mW","[Uc] control circuit voltage":"24 V AC","Contacts type and composition":"2 C/O","[Ui] rated insulation voltage":"250 V IEC 300 V CSA 300 V UL","Average coil consumption in VA":"2...3 60 Hz","[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 AC","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":"$38.06","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/72ce86ed7f83ad14584dfdd552d510d6.pdf","sourceUrl":"https://www.se.com/vn/en/product/RUMC2AB1B7/universal-plugin-relay-harmony-rum-2-c-o-24-v-ac-10-a/","alternativesUrl":"https://aoctrl.com/api/mcp/products/RUMC2AB1B7/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to RUMC2AB1B7?","answer":"Within the Harmony Relay RUM family, the RUMC2AB1B7 has a 24 V AC coil. The pin-compatible sibling with a 24 V DC coil is the RUMC2AB1B7 (DC variant uses a different order code, same socket and footprint). For a 120 V AC coil, look at the RUMC2AB1B7 (120 V AC variant). All share the same 2 C/O contact arrangement and cylindrical pin shape."},{"question":"What standards does RUMC2AB1B7 comply with?","answer":"It is certified to EN/IEC 61810-1, CSA C22.2 No 14, and UL 508. Rated insulation voltage is 250 V IEC, 300 V CSA/UL."},{"question":"Where can I buy RUMC2AB1B7 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/RUMC2AB1B7","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/RUMC2AB1B7 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}}