{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RHT428B","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"RHT428B","canonicalUrl":"https://aoctrl.com/schneider/RHT428B","factsUrl":"https://aoctrl.com/api/mcp/products/RHT428B","rawCanonicalId":null},"summary":{"shortDescription":"on-delay timing relay with suppressor - 0.2..300 s - 4 C/O low level - 24V AC/DC","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Time Delay Relays"],"specifications":{"Standards":"IEC 60255 NF C 45-250 VDE 0435","Reset Time":"100 ms","status LED":"With","Control type":"Selector switch","Switching time":"1...3 ms AC for energisation/de-energisation 0.5...6 ms AC for de-energisation/energisation 1...4 ms DC for energisation/de-energisation 1.2...4 ms DC for de-energisation/energisation","Repeat accuracy":"+/- 1 %","Time delay type":"On-delay","lifecycle_stage":"unknown","Range of product":"Zelio Relay","Shock resistance":"50 gn for 11 ms conforming to NF C 20-608","Time delay range":"15...300 s 0.2...3 s 1.5...30 s","CAD overall depth":"108 mm","CAD overall width":"33 mm","Contact operation":"Low level","Device short name":"RHT","Average resistance":"30 mOhm at 20 °C","CAD overall height":"43 mm","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","Immunity to microbreaks":"10 ms during time delay 2 ms after time delay","Average coil consumption":"2.5 W at 20 °C","Product or component type":"Plug-in relay Timing relay","Minimum switching capacity":"50 mVA at 1 mA, 1 V","[Uc] control circuit voltage":"24 V AC/DC 50/60 Hz","Coil interference suppression":"With","Contacts type and composition":"4 C/O","[Ui] rated insulation voltage":"250 V","Average coil consumption in VA":"2.9 at 20 °C","Control circuit voltage limits":"0.8...1.1 Uc conforming to IEC 60255","Setting accuracy of time delay":"+/- 15 % of full scale","Terminals description ISO n°1":"(A1-A2)CO (41-42-44)OC (21-22-24)OC (31-32-34)OC (11-12-14)OC","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-5...40 °C conforming to IEC 60255","[Ithe] conventional enclosed thermal current":"1 A 40 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9163d60262e852560444d9a52a94af2f.pdf","sourceUrl":"https://www.se.com/sg/en/product/RHT428B/ondelay-timing-relay-with-suppressor-0-2-300-s-4-c-o-low-level-24v-ac-dc/","alternativesUrl":"https://aoctrl.com/api/mcp/products/RHT428B/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/RHT428B","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/RHT428B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}