{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1946-4GA07","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1946-4GA07","canonicalUrl":"https://aoctrl.com/siemens/3RT1946-4GA07","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1946-4GA07","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS terminal block, Type E acc. to UL, 100 A, 690 V, screw-type terminals, IP20, width 70 mm, for circuit breaker Size S3.","salesMarkdown":"The Siemens SIRIUS 3RT1946-4GA07 is a Type E terminal block designed for use with circuit breakers in Size S3. It provides increased clearances and creepage distances for combination motor controllers per UL 508. The screw-type terminals accept solid conductors 2x (2.5... 16 mm²) and stranded conductors up to 1x (10... 70 mm²), with an ampacity maximum of 100 A and an insulation voltage of 690 V at pollution degree 3. The 100 A ampacity and 690 V insulation voltage set the electrical envelope for this terminal block — it handles the full rated current of a Size S3 circuit breaker without derating in standard industrial environments. The Type E designation (UL 508) means the clearances and creepage distances are increased beyond standard terminal blocks, which is required for combination motor controller assemblies where the block mounts directly to the breaker output. The IP20 finger-safe front (per IEC 60529) protects against accidental contact from the front, which matters in open-panel installations where maintenance staff may reach near live terminals. At 70 mm width, this block matches the standard S3 breaker footprint and mounts directly to the breaker terminals via screw-type connections. The terminal accepts solid and stranded conductors across the ranges listed, including AWG equivalents for main contacts: 2x (10... 1/0) and 1x (10... 2/0).","metaTitle":"Siemens 3RT1946-4GA07 SIRIUS Terminal Block, 100 A, 690 V, T","metaDescription":"Siemens SIRIUS 3RT1946-4GA07 terminal block, 100 A ampacity, 690 V insulation, Type E per UL 508. Phased-out; successor 3RT2946-4GA07. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Solid":"2x (2.5 ... 16 mm²)","Width":"70mm","Stranded":"2x (10 ... 50 mm²), 1x (10 ... 70 mm²)","During Storage":"-50 ... +80°C","lifecycle_stage":"current","Ampacity Maximum":"100A","During Operation":"-20 ... +60°C","Product Brand Name":"SIRIUS","Product Designation":"Terminal block","Design Of The Product":"Type E acc. to UL","With Core End Processing":"2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²)","Size Of The Circuit-Breaker":"S3","at AWG cables for main contacts":"2x (10 ... 1/0), 1x (10 ... 2/0)","touch protection on the front acc. to IEC 60529":"finger-safe, for vertical contact from the front","protection class IP on the front acc. to IEC 60529":"IP20","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"690V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=145317&mlfb=3RT1946-4GA07","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1946-4GA07/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1946-4GA07?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 3RT1946-4GA07?","answer":"The official preferred successor is the SIRIUS 3RT2946-4GA07, which is a direct drop-in replacement with the same ratings and footprint."},{"question":"What compliance documentation does Siemens provide for 3RT1946-4GA07?","answer":"The part carries UL Type E recognition per UL 508 and IEC 60529 IP20 front protection. The manufacturer typically provides RoHS and REACH declarations on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1946-4GA07","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/3RT1946-4GA07 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}}