{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM9908-0BL20","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM9908-0BL20","canonicalUrl":"https://aoctrl.com/siemens/3VM9908-0BL20","factsUrl":"https://aoctrl.com/api/mcp/products/3VM9908-0BL20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON series, shunt trip accessory, order code 3VM9908-0BL20, 380-600 V AC 50/60 Hz, 40 VA, for 3VM breakers to 630 A.","salesMarkdown":"## Shunt trip for SENTRON 3VM breakers The Siemens 3VM9908-0BL20 is a shunt trip accessory for the SENTRON 3VM molded-case circuit breaker family, rated for breakers up to 630 A. It accepts a control supply voltage of 380–600 V AC at 50/60 Hz, drawing a maximum apparent power of 40 VA. This is the left-side mounted variant, designed to trip the breaker remotely via a control signal — typical for emergency-stop circuits or supervisory shutdown in panel builds. Dimensions are 25.7 mm wide, 65.1 mm high, and 31.2 mm deep — a compact add-on that clips onto the left side of the 3VM breaker without expanding the DIN-rail footprint. The 10 mm stripped length on the control wiring matches standard ferrule preparation for spring-cage or screw terminals in the panel. ## Electrical ratings and environment Pollution degree 3 means the part tolerates conductive dust or condensation typical in industrial enclosures not hermetically sealed.","metaTitle":"Siemens 3VM9908-0BL20 SENTRON Shunt Trip, 380-600V AC","metaDescription":"Siemens 3VM9908-0BL20 SENTRON shunt trip for 3VM breakers up to 630A. 380-600V AC 50/60Hz, 40VA. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"31.2 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":"380 - 600 V 50/60 Hz","Apparent Power Consumption / Maximum":"40 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=575135&mlfb=3VM9908-0BL20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM9908-0BL20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VM9908-0BL20?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the control voltage range for 3VM9908-0BL20?","answer":"The shunt trip accepts 380–600 V AC at 50/60 Hz, with a maximum apparent power consumption of 40 VA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM9908-0BL20","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/3VM9908-0BL20 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}}