{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1916-1PB2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1916-1PB2","canonicalUrl":"https://aoctrl.com/siemens/3RT1916-1PB2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1916-1PB2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS EMC suppression module, Size S00, 575 V AC at 50/60 Hz, varistor circuit, order code 3RT1916-1PB2.","salesMarkdown":"The Siemens SIRIUS 3RT1916-1PB2 is an EMC suppression module designed to clamp voltage transients on the coil of a Size S00 contactor. This module snaps onto the contactor's coil terminals, so it adds no DIN-rail footprint and no extra wiring; the suppression is in the same physical envelope as the contactor itself. ## Lifecycle and replacement path The 3RT1916-1PB2 is a phased-out product. Siemens lists the preferred successor as the SIRIUS 3RT2916-1PB2, which drops into the same Size S00 contactor footprint and performs the same varistor-based surge suppression at 575 V AC. For new designs, the 3RT2916-1PB2 is the direct drop-in replacement. ## What the 575 V rating means for fit The 575 V AC rating at both 50 Hz and 60 Hz means this module is sized for 480 V / 575 V three-phase systems common in North American and Canadian industrial panels — it clamps the coil's turn-off spike to a level that stays within the contactor's insulation coordination. The varistor design handles the repetitive energy of a contactor coil without degrading over the mechanical life of the contactor. If your panel runs 400 V AC line-to-line, this module still works; the clamping voltage is above the peak of 400 V, so it only conducts during the transient, not during normal operation. The module mounts directly onto the coil terminals of a SIRIUS Size S00 contactor (e.g., 3RT1016 or 3RT1024 series). No DIN-rail space is consumed, and no additional wiring is needed beyond the coil connections. The varistor is encapsulated, so it meets the same pollution degree and clearance requirements as the contactor itself. Verify that the contactor's coil voltage matches the module's 575 V AC rating — this is not a universal-voltage suppressor.","metaTitle":"Siemens 3RT1916-1PB2 SIRIUS EMC Suppression Module, 575 V, V","metaDescription":"Siemens SIRIUS 3RT1916-1PB2 EMC surge suppression module, 575 V AC at 50/60 Hz, varistor circuit. Phased-out; successor 3RT2916-1PB2 available. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"1 Rated Value":"50Hz","2 Rated Value":"60Hz","lifecycle_stage":"current","Product brand name":"SIRIUS","Product designation":"EMC suppression module","at 50 Hz rated value":"575V","at 60 Hz rated value":"575V","Design of the surge suppressor":"with varistor","Type of voltage of the control supply voltage":"AC"}},"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=178649&mlfb=3RT1916-1PB2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1916-1PB2/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT1916-1PB2?","answer":"The preferred successor is the Siemens SIRIUS 3RT2916-1PB2. It is the same Size S00 varistor-based EMC suppression module rated at 575 V AC, and it drops directly into the same contactor footprint without any wiring changes."},{"question":"Where can I buy 3RT1916-1PB2 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Submit an RFQ to get a firm price and lead time for your quantity."},{"question":"What is the 3RT1916-1PB2 rated voltage at 50 Hz?","answer":"The module is rated at 575 V at 50 Hz. It is also rated at 575 V at 60 Hz, so the same part covers both mains frequencies."},{"question":"Will 3RT1916-1PB2 fit a panel wired for a 3RH2122-2AV00 auxiliary contactor?","answer":"No. The 3RT1916-1PB2 is an EMC suppression module for Size S00 power contactors, not an auxiliary contactor. It mounts onto the coil terminals of a contactor like the 3RT1016 series. It will not replace or fit into a panel slot designed for a 3RH2122-2AV00 auxiliary contactor — those are different device classes with different wiring and mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1916-1PB2","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/3RT1916-1PB2 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}}