{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1956-1CC00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1956-1CC00","canonicalUrl":"https://aoctrl.com/siemens/3RT1956-1CC00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1956-1CC00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS surge suppressor (RC element), 48…127 V AC / 70…150 V DC, for 3RT1 contactors sizes S6, S10, S12, screw terminal drive connection.","salesMarkdown":"The Siemens 3RT1956-1CC00 is a SIRIUS-series surge suppressor built as an RC element — a resistor-capacitor snubber — designed to clamp voltage transients across the coil of a 3RT1 contactor in sizes S6, S10, and S12 with screw terminals on the drive side. It handles control supply voltages of 48…127 V AC at either 50 or 60 Hz, and 70…150 V DC, accepting both AC and DC control circuits without a separate coil-voltage variant. The 70…150 V DC range covers the most common 110 V DC and 125 V DC control buses found in power-generation and heavy-industrial panels; the 48…127 V AC window matches standard 110 V and 120 V control transformers as well as 48 V AC pilot circuits. Because it is an RC element rather than a varistor or diode, it suppresses both the turn-off inductive kick and the turn-on inrush spike — the resistor limits the capacitor discharge current, which keeps the contactor's auxiliary contacts from welding on high-inductance loads like large DC coils. The part carries a RoHS substance prohibition date of July 1, 2006, confirming compliance with the EU RoHS directive since its original market introduction.","metaTitle":"Siemens 3RT1956-1CC00 SIRIUS Surge Suppressor, RC Element, 4","metaDescription":"Siemens SIRIUS surge suppressor (RC element) for 3RT1 S6, S10, S12 contactors. Rated 48-127 V AC / 70-150 V DC. Active lifecycle. RoHS compliant. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"at DC":"70 ... 150 V","title":"3RT1956-1CC00","at 50 Hz":"48 ... 127 V","at 60 Hz":"48 ... 127 V","description":"Surge suppressor (RC element) for 3RT1 S6, S10, S12 with screw terminal (drive) 48...127 V AC, 70...150 V DC","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Product Brand Name":"SIRIUS","Product Designation":"surge suppressor","Substance Prohibitance (Date)":"07/01/2006","Design Of The Surge Suppressor":"RC element","Type Of Voltage Of The Control Supply Voltage":"AC/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$67.82","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ef3279d8e16f558e258e3c3d2a9a2c75.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=337244&mlfb=3RT1956-1CC00"},"ai":{"faq":[{"question":"What contactor sizes does 3RT1956-1CC00 fit?","answer":"It is designed for Siemens 3RT1 contactors in frame sizes S6, S10, and S12 with screw-terminal drive connections."},{"question":"What compliance documentation does Siemens provide for 3RT1956-1CC00?","answer":"The part is RoHS compliant with a substance prohibition date of July 1, 2006. Full compliance declarations (RoHS, REACH) are available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1956-1CC00","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/3RT1956-1CC00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}