{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2316-8XB37-1DB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2316-8XB37-1DB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2316-8XB37-1DB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2316-8XB37-1DB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2316-8XB37-1DB4 reversing contactor assembly, size S00, 4 kW at 400 V AC-3, 24 V DC coil, screw terminals, DIN rail mount.","salesMarkdown":"## What this reversing contactor assembly does The Siemens 3RA2316-8XB37-1DB4 is a SIRIUS reversing contactor assembly — a pre-wired pair of contactors with mechanical and electrical interlocking, so you can reverse a three-phase motor without building the interlock logic yourself. It ships with two 3RT2016-1DB47 contactors (size S00) already mounted and wired for reversing duty. That means it handles both normal starting and the more demanding reversing/inching cycles without derating the motor power. The coil is 24 V DC, which is common for PLC-controlled panels — lets you drive it directly from a 24 V DC output without an interposing relay. Mounts on 35 mm DIN rail with either screw or snap-on fastening. You can rotate the assembly ±180° on a vertical surface, and tilt it forward or backward by ±22.5° — useful when you're fitting it into a tight enclosure and need to angle the wiring terminals toward the duct. Dimensions are 90 mm wide, 68 mm high, 145 mm deep — the depth is the main thing to check if you're fitting it into a shallow panel or a pull-box. The coil terminals use screw-type connections as well, same wire ranges. No special crimp tools needed — just a screwdriver. ## Built-in surge suppression and auxiliary contacts A varistor surge suppressor is built into the assembly across the coil — that saves you from adding a separate RC snubber or MOV when the contactor is switched by a PLC output or a relay. It clips the inductive kickback on the 24 V DC coil. Six instantaneous auxiliary contacts are available — three per direction of rotation — so you can wire feedback to the PLC or seal-in the reversing command without adding a separate auxiliary contact block. Mechanical life is rated at 10 million operating cycles typical — that's the contactor mechanism itself, not the main contacts under load. For reversing duty at rated current, the electrical life will be shorter; the AC-4 rating gives you the worst-case electrical endurance figure. ## Environmental limits and compliance The vibration resistance is specified at 10.5 g / 5 ms and 6.6 g / 10 ms for both AC and DC excitation — relevant if the panel is mounted on a machine or a moving vehicle. RoHS compliance date is July 1, 2006 — the assembly meets the original RoHS directive. Clearance distances around the unit: 6 mm upwards, forwards, downwards, and to the side; 0 mm backwards (against the DIN rail or mounting surface).","metaTitle":"Siemens 3RA2316-8XB37-1DB4 SIRIUS Reversing Contactor","metaDescription":"Siemens 3RA2316-8XB37-1DB4 SIRIUS reversing contactor assembly, size S00, 4 kW at 400 V AC-3, 24 V DC coil. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"145 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"90 mm","at AC":"10,5g / 5 ms, 6,6g / 10 ms","at DC":"10,5g / 5 ms, 6,6g / 10 ms","title":"3RA2316-8XB37-1DB4","Height":"68 mm","Upwards":"6 mm","Forwards":"6 mm","Backwards":"0 mm","Downwards":"6 mm","At The Side":"6 mm","description":"Reversing contactor assembly AC-3, 4 kW/400 V, 24 V DC 3-pole, Size S00 screw terminal electrical and mechanical interlock 2 x varistor plugged on 2 x auxiliary switch plugged on","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at DC rated value":"24 V","Product Brand Name":"SIRIUS","Product Designation":"Reversing contactor assembly","Of Contactor Typical":"10 000 000","at 400 V rated value":"4 kW","at 480 V rated value":"7.6 A","at 500 V rated value":"4 kW","at 600 V rated value":"9 A","at 690 V rated value":"5.5 kW","Instantaneous Contact":"6","For Main Current Circuit":"screw-type terminals","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"7.5 hp","Per Direction Of Rotation":"3","1 Of The Supplied Contactor":"3RT2016-1DB47","2 Of The Supplied Contactor":"3RT2016-1DB47","at AC-4 at 400 V rated value":"4 kW","Substance Prohibitance (Date)":"07/01/2006","Design Of The Surge Suppressor":"with varistor","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14)","of the supplied RH assembly kit":"3RA2913-2AA1","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"Yes","With Type Of Assignment 2 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 20 A","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-3 maximum":"750 1/h","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"< 1 error per 100 million operating cycles","with low demand rate according to SN 31920":"40 %","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","Type Of Voltage Of The Control Supply Voltage":"DC","operating voltage at AC-3 rated value maximum":"690 V","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"No","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/16957de2f7dc2a5ef5d5e85473443db3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=450869&mlfb=3RA2316-8XB37-1DB4"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2316-8XB37-1DB4","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/3RA2316-8XB37-1DB4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}