{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"WB1KB122","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"WB1KB122","canonicalUrl":"https://aoctrl.com/schneider/WB1KB122","factsUrl":"https://aoctrl.com/api/mcp/products/WB1KB122","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys WB1KB122 low-consumption contactor coil, 240 V AC 50-400 Hz / 220-250 V DC control circuit, 25 ms sealed operating time, 1.2M mechanical cycles.","salesMarkdown":"The Schneider Electric TeSys WB1KB122 is a low-consumption contactor coil designed for the TeSys range of contactors. It operates on a dual-rated control circuit: 240 V AC at 50-400 Hz or 220-250 V DC, with a sealed operating time of 25 ms and mechanical durability rated at 1,200,000 cycles. The coil draws inrush power between 380-1400 W depending on the number of poles, but hold-in consumption drops to just 0.15-1.6 W — the low-consumption design that keeps the panel cool and reduces continuous draw on the control transformer. The 240 V AC / 220-250 V DC control voltage means this coil drops into any panel with a standard 240 V control transformer or a 220 V DC bus — common in European and Asian installations. The 25 ms sealed operating time is fast enough for most motor-starting and switching applications, but the maximum operating rate of 120 cycles per minute at 55 °C sets a ceiling for high-speed pick-and-place or indexing lines; sustained faster cycling risks overheating the coil. The 1.2 million mechanical cycles give a solid service life for a contactor in a typical conveyor or pump panel — roughly 5-8 years at moderate duty before the coil or contactor assembly needs attention. This coil mounts directly onto the TeSys D or TeSys F contactor frame — no adapter bracket needed. The low hold-in power (0.15-1.6 W) means minimal heat rise inside the enclosure, so derating for adjacent components is less of a concern than with standard coils. Verify the control circuit voltage matches the coil rating before installation; the 137-151 V control circuit voltage limits are the dropout and pickup thresholds, not the nominal supply.","metaTitle":"Schneider TeSys WB1KB122 Contactor Coil, 240V AC/220-250V DC","metaDescription":"Schneider Electric TeSys WB1KB122 low-consumption contactor coil. 240 V AC 50-400 Hz / 220-250 V DC control voltage. Obsolete; sourced to order against RFQ via independent distribu","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":"49.7 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","Maximum operating rate":"120 cyc/mn 131 °F (55 °C)","Product or Component Type":"Contactor coil","[Uc] control circuit voltage":"240 V AC 50...400 Hz 220...250 V DC","Control circuit voltage limits":"137...151 V","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/c35692e31614d4155d8691da48c1e866.pdf","sourceUrl":"https://www.se.com/be/en/product/WB1KB122/coil-wb1-240-v-50-400-hz-220-250-v/","alternativesUrl":"https://aoctrl.com/api/mcp/products/WB1KB122/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy WB1KB122 and how do I get a price?","answer":"The WB1KB122 is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — stock levels and lead time are confirmed at quote time."},{"question":"What is the control voltage for WB1KB122?","answer":"The control circuit voltage is 240 V AC at 50-400 Hz or 220-250 V DC, with dropout and pickup thresholds between 137-151 V."},{"question":"What is the mechanical durability of the WB1KB122 coil?","answer":"The coil is rated for 1,200,000 mechanical cycles, with a maximum operating rate of 120 cycles per minute at 55 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/WB1KB122","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/WB1KB122 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}}