{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"WB1EA400","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"WB1EA400","canonicalUrl":"https://aoctrl.com/schneider/WB1EA400","factsUrl":"https://aoctrl.com/api/mcp/products/WB1EA400","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys range, WB1EA400 contactor coil, 400 V AC 50 Hz / 440 V AC 60 Hz, low consumption type, for CV1B and CV3B contactors.","salesMarkdown":"The WB1EA400 is a replacement coil from the Schneider Electric TeSys range, designed specifically for the CV1B and CV3B contactor frames. It is a low-consumption AC coil rated at 400 V AC 50 Hz and 440 V AC 60 Hz, meaning it holds the contactor closed on a 50 Hz supply at 400 V and on a 60 Hz supply at 440 V — the two common line voltages across European and North American industrial plants. The coil draws an inrush of 90 to 110 W at 20 °C, settling to a hold-in consumption of 13 to 19 W at the same temperature, which keeps the thermal load on the panel wiring manageable provided the contactor is in a ventilated enclosure. ## Electrical characteristics for the panel builder The coil's average resistance is 182 ohms at 20 °C, and its closed-circuit inductance is 10 H. The control circuit voltage limits are 0.85 to 1.1 times Uc at both 50 Hz and 60 Hz, provided the ambient temperature stays below 55 °C. Inrush power in VA is 220 to 270 VA at 50 Hz and 225 to 275 VA at 60 Hz, with a power factor of 0.4 and 0.34 respectively. Hold-in VA drops to 35 to 55 VA at both frequencies. These numbers matter for sizing the control transformer and the fuse or circuit breaker feeding the contactor coil circuit — the inrush peak is brief but must not sag the control bus below the dropout threshold of other coils on the same circuit.","metaTitle":"WB1EA400 TeSys contactor coil, 400VAC/440VAC, obsolete","metaDescription":"WB1EA400 is an obsolete TeSys contactor coil for CV1B/CV3B contactors. 400 V AC 50 Hz / 440 V AC 60 Hz. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Reversing Contactors"],"specifications":{"Range":"TeSys","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Coil type":"Low consumption","lifecycle_stage":"current","Inrush power in W":"90...110 W 68 °F (20 °C) 75...95 W 68 °F (20 °C)","Average resistance":"182 Ohm 68 °F (20 °C)","Inrush power in VA":"220...270 VA 50 Hz 0.4 68 °F (20 °C)) 225...275 VA 60 Hz 0.34 68 °F (20 °C))","Control circuit type":"AC","Nbr. of units in pkg.":"1","Product or Component Type":"Contactor coil","Inductance of closed circuit":"10 H","[Uc] control circuit voltage":"440 V AC 60 Hz 400 V AC 50 Hz","Control circuit voltage limits":"Operational: 0.85...1.1 Uc at 50 Hz (at Operational: 0.85...1.1 Uc at 60 Hz (at <131 °F (55 °C))","Hold-in power consumption in W":"13...19 W 68 °F (20 °C) 10...13 W 68 °F (20 °C)","Hold-in power consumption in VA":"35...55 VA 60 Hz 0.37 68 °F (20 °C)) 35...55 VA 50 Hz 0.35 68 °F (20 °C))"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/48a84d9d394e1d6b619ee9f604b37a93.pdf","sourceUrl":"https://www.se.com/uk/en/product/WB1EA400/coil-wb1e-400v440v-ac-for-cv1b-cv3b-contactor/","alternativesUrl":"https://aoctrl.com/api/mcp/products/WB1EA400/alternatives.json"},"ai":{"faq":[{"question":"What contactors does the WB1EA400 fit?","answer":"The WB1EA400 is a replacement coil for the Schneider Electric CV1B and CV3B contactor frames. It is part of the TeSys range."},{"question":"What is the control voltage of the WB1EA400?","answer":"The coil is rated at 400 V AC at 50 Hz and 440 V AC at 60 Hz. It operates within 0.85 to 1.1 times Uc at both frequencies, up to 55 °C ambient."},{"question":"How do I source the WB1EA400 if it is obsolete?","answer":"Because the part is obsolete and not in standard distribution, we source it on request from the independent surplus and broker market. Submit an RFQ; we search our network for verified inventory and quote you the best available option."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/WB1EA400","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/WB1EA400 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}}