{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VW3A3E403","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"VW3A3E403","canonicalUrl":"https://aoctrl.com/schneider/VW3A3E403","factsUrl":"https://aoctrl.com/api/mcp/products/VW3A3E403","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Altivar series encoder interface card, VW3A3E403, open collector output, 12 V DC supply, 300 kHz max frequency, obsolete.","salesMarkdown":"The VW3A3E403 is an encoder interface card for the Altivar drive range, accepting quadrature encoder signals (A, B, complement of A, complement of B, plus index/AB/A) and outputting them as open-collector signals at up to 300 kHz. The 1 kOhm input impedance and 12 V DC supply (limits 12–13 V) are sized for standard incremental encoders with complementary outputs. It provides overload and short-circuit protection on the output side. The 300 kHz maximum operating frequency means this card handles most incremental encoders used on motor shafts up to several thousand RPM with typical 1024–5000 PPR counts — the 10000 and 5000 pulses-per-revolution values in the spec are the encoder resolutions it supports. The open-collector output stage sinks current to the drive's digital input; verify the pull-up voltage matches the drive's input threshold (typically 24 V, not the card's 12 V supply). The 500 m maximum cable distance between the encoder and the card is generous for a drive cabinet mounted near the motor, but cable capacitance at that length will limit practical frequency — derate for long runs. ## Connection and wiring notes Terminal block connections accept 0.2 mm² to 1.5 mm² (AWG 24 to AWG 15). The card draws 175 mA from the 12 V supply. For a panel-builder or commissioning engineer: the complement-of-A and complement-of-B signals are the inverted quadrature channels — if the drive expects single-ended A/B only, leave the complement terminals unwired. The open-collector output is not differential; keep the cable run from card to drive input under a few meters to avoid noise pickup.","metaTitle":"Schneider Altivar VW3A3E403 Encoder Interface Card, 300 kHz,","metaDescription":"VW3A3E403 is an obsolete Altivar encoder interface card with open collector output, 300 kHz max frequency, 12 V DC supply. Sourced to order against RFQ through independent distribu","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Motor Control Accessories"],"specifications":{"Input signal":"A B Compliment of A Compliment of B/AB/A","Input impedance":"1 kOhm","Protection type":"Overload protection Short-circuit protection","lifecycle_stage":"mature","Range of product":"Altivar","Discrete output type":"Open collector","Electrical connection":"Terminal, connection capacity: 0.2 mm² (AWG 24) Terminal, connection capacity: 0.5 mm² (AWG 20) Terminal, connection capacity: 0.5 mm² (AWG 20) Terminal, connection capacity: 0.75 mm² (AWG 18) Terminal, connection capacity: 1 mm² (AWG 17) Terminal, connection capacity: 1.5 mm² (AWG 15) <500 m cable length, encoder, 175 mA at 10 V","Maximum supply current":"0.175 A","Product or component type":"Encoder interface card","[Us] rated supply voltage":"12 V DC (voltage limits: 12...13 V)","Maximum operating frequency":"300 kHz","Number of pulses per revolution":"10000 5000","Maximum cable distance between devices":"500 m"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e94899e7635a5f82a6a32faad0733831.pdf","sourceUrl":"https://www.se.com/vn/en/product/VW3A3E403/encoder-interface-card-with-open-collector-output-12-v-dc/","alternativesUrl":"https://aoctrl.com/api/mcp/products/VW3A3E403/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy VW3A3E403 and get a price?","answer":"The VW3A3E403 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Submit an RFQ for this obsolete part through the listing."},{"question":"What is the VW3A3E403's input signal format?","answer":"The card accepts A, B, complement of A, complement of B, and AB/A (index) signals — a standard quadrature incremental encoder interface with complementary (differential) inputs."},{"question":"What is the input impedance of the VW3A3E403?","answer":"The input impedance is 1 kOhm per channel, which loads the encoder outputs. Verify the encoder can drive this load at the required cable length and frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/VW3A3E403","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/VW3A3E403 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}}