{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM9908-0BB23","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM9908-0BB23","canonicalUrl":"https://aoctrl.com/siemens/3VM9908-0BB23","factsUrl":"https://aoctrl.com/api/mcp/products/3VM9908-0BB23","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON undervoltage release, 110V AC 50/60Hz, 2 VA, accessory for 3VM molded case circuit breakers up to 630 A, order code 3VM9908-0BB23.","salesMarkdown":"The Siemens SENTRON 3VM9908-0BB23 is an undervoltage release accessory for 3VM molded case circuit breakers rated up to 630 A. It operates on a 110 V AC control supply at 50/60 Hz, drawing a maximum apparent power of 2 V·A. Rated insulation voltage (Ui) is 690 V, and surge voltage resistance is 4 kV — both match the insulation coordination of a 3VM breaker installed in an overvoltage category III environment with pollution degree 3. That means this release is designed for the fixed-installation panel environment (PD3 is typical of control cabinets with conductive dust or humidity, not clean-room or sealed enclosures). Physical footprint: 65.1 mm high, 25.7 mm wide, 28.8 mm deep. The 25.7 mm width fits alongside the breaker in a typical distribution panel. Stripped length is 10 mm (0.4 in) — standard for screw-clamp terminals on SENTRON accessories. Strip to that mark; over-stripping leaves bare conductor exposed past the clamp. Lifecycle status is active (current production). No phase-out or last-time-buy notice exists for this order code.","metaTitle":"Siemens 3VM9908-0BB23 SENTRON undervoltage release, 110V AC","metaDescription":"Siemens SENTRON 3VM9908-0BB23 undervoltage release, 110V AC 50/60Hz, 2 VA, for 3VM breakers to 630A. Active production. Sourced to order. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"28.8 mm","Width":"25.7 mm","Height":"65.1 mm","Maximum":"16","Minimum":"20","Accessories":"Auxiliary release","Number Of Slots":"3","Product version":"Auxiliary release","Stripped Length":"10 mm","lifecycle_stage":"current","Product Brand Name":"SENTRON","Degree of pollution":"3","Product Designation":"Accessories","Overvoltage category":"III","Stripped Length [In]":"0.4 in","Surge Voltage Resistance":"4 kV","Tension assignée d'isolement Ui":"690 V","control supply voltage (Us) / at AC":"110 V 50/60 Hz","Apparent Power Consumption / Maximum":"2 V·A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e3a9467547a17ef94fa57eaffc6bb7e7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575130&mlfb=3VM9908-0BB23","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM9908-0BB23/alternatives.json"},"ai":{"faq":[{"question":"What is 3VM9908-0BB23 used for?","answer":"It is an undervoltage release for Siemens 3VM molded case circuit breakers up to 630 A. It trips the breaker when the control supply (110 V AC 50/60 Hz) drops below the dropout threshold, preventing automatic restart after a power loss."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM9908-0BB23","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VM9908-0BB23 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}}