{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"WB1KB126","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"WB1KB126","canonicalUrl":"https://aoctrl.com/schneider/WB1KB126","factsUrl":"https://aoctrl.com/api/mcp/products/WB1KB126","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys range, contactor coil WB1KB126, 380...400V AC 50...400 Hz, low consumption, obsolete.","salesMarkdown":"The Schneider Electric TeSys WB1KB126 is a low-consumption contactor coil rated for 380...400 V AC at 50...400 Hz. It is a spare part for TeSys contactors, designed to be swapped in when the original coil fails or needs replacement on an existing panel. Sealed operating time is 25 ms, and the coil draws 1100...1400 W inrush on a 4-pole contactor, dropping to 0.15...0.2 W hold-in for a 1-pole configuration. The 197 Ohm average resistance at 68 °F (20 °C) gives a quick check value for field troubleshooting. ## Sourcing reality — obsolete part No official successor order code is listed, so the replacement path is a parametric match to the 380...400 V AC 50...400 Hz coil voltage and TeSys footprint. The 380...400 V AC control voltage at 50...400 Hz means this coil is meant for a 400 V class control transformer — common in European-spec panels. The wide 50...400 Hz range covers both 50 Hz mains and 400 Hz aircraft/military-derived supplies, but in practice it lives in 50/60 Hz industrial panels. Low-consumption design keeps the hold-in power under 2 W even on a 4-pole contactor, which matters when the control transformer is sized tight or the panel has many coils in parallel. The inrush spike (up to 1400 W) is brief — the 25 ms sealed time means the coil pulls in fast and the power stage drops to hold-in level almost immediately.","metaTitle":"Schneider TeSys WB1KB126 Contactor Coil, 380-400V AC, Obsole","metaDescription":"Schneider Electric TeSys WB1KB126 contactor coil, 380-400V AC 50-400 Hz, low consumption. Obsolete — sourced to order against RFQ. Critical spare for existing TeSys contactors.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Reversing Contactors"],"specifications":{"Range":"TeSys","Category":"18085-SPARE PARTS DISCOUNT I12","Coil type":"Low consumption","Operating time":"25 ms sealed","lifecycle_stage":"current","Inrush power in W":"1100...1400 W 4P 380...520 W 1P 600...800 W 2P 900...1100 W 3P","Average resistance":"197 Ohm 68 °F (20 °C)","Inrush power in VA":"1100...1300 VA 3P 1300...1600 VA 4P 450...620 VA 1P 720...1000 VA 2P","Control circuit type":"DC AC","Mechanical durability":"1200000 cycles","Nbr. of units in pkg.":"1","Maximum operating rate":"120 cyc/mn 131 °F (55 °C)","Product or Component Type":"Contactor coil","[Uc] control circuit voltage":"380...400 V AC 50...400 Hz","Control circuit voltage limits":"268...318 V at 50...400 Hz 308...365 V at 50...400 Hz","Hold-in power consumption in W":"0.15...0.2 W 1P 0.35...0.5 W 2P 0.7...1 W 3P 1.2...1.6 W 4P","Hold-in power consumption in VA":"0.15...0.2 VA 50...400 Hz 1P 0.35...0.5 VA 50...400 Hz 2P 0.7...1 VA 50...400 Hz 3P 1.2...1.6 VA 50...400 Hz 4P"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/da6f2559012f2961fa4b3cead3ff76b8.pdf","sourceUrl":"https://www.se.com/nz/en/product/WB1KB126/coil-wb1k-380-400v-ac-40-400-hz/","alternativesUrl":"https://aoctrl.com/api/mcp/products/WB1KB126/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to WB1KB126 in the TeSys family?","answer":"No official successor order code is published by Schneider. The replacement is a parametric match: a TeSys contactor coil rated for 380...400 V AC at 50...400 Hz with the same low-consumption profile and mechanical footprint. Cross-reference by the control voltage and the contactor frame size it mates to."},{"question":"How do I source this obsolete coil?","answer":"Submit an RFQ with your quantity and target delivery window. We source through our surplus and broker network — no stock is held on the shelf for an obsolete line item."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/WB1KB126","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/WB1KB126 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}}