{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SAM101901R0001","brand":"ABB","brandSlug":"abb","productSlug":"1SAM101901R0001","canonicalUrl":"https://aoctrl.com/abb/1SAM101901R0001","factsUrl":"https://aoctrl.com/api/mcp/products/1SAM101901R0001","rawCanonicalId":null},"summary":{"shortDescription":"ABB 1SAM101901R0001 auxiliary contact block, 9 mm wide, 1NO+1NC, rated 3 A at 400 V, front-mount to the MS / MO manual motor protector line.","salesMarkdown":"The ABB 1SAM101901R0001 is a front-mount auxiliary contact block carrying one normally-open and one normally-normally-closed contact in a 9 mm housing, rated 3 A at 400 V. It is sized as a signal/control side-car for ABB manual motor protectors and small contactors — the 3 A thermal current and 400 V insulation rating govern pilot duty, contactor coil feedback, and indicator lamp loads, not the motor power path itself. ## Why 3 A / 400 V is the spec to size against On auxiliary blocks the 3 A figure is the thermal current limit and 400 V is the rated insulation voltage for the control circuit — together they set the ceiling for indicator lamps, contactor coils and PLC input signaling, so the buyer should size the worst-case pilot load against 3 A rather than against the breaker's power rating. The 1NO+1NC arrangement gives one feedback path for closed state and one for open state, which lets the block mirror the upstream device's status to the control circuit. ## Same-housing alternative if NO/NC is wrong for the BOM line The closest functional alternative in the same 9 mm housing is ABB 1SAM101901R0002, which swaps the 1NO+1NC pair for a 2NO arrangement at the same 3 A and 400 V ratings — so a panel laid out for the R0001 can move to R0002 without changing the rail footprint or the wiring plan, only the contact assignment. A second ABB auxiliary, 2CDS200912R0001, also carries 1NO+1NC but on an 8.8 mm housing from a different family — it is not a same-footprint cross for the R0001 and any swap should be checked against the breaker's accessory slot geometry.","metaTitle":"ABB 1SAM101901R0001 Auxiliary Contact, 1NO+1NC, 3 A, 400 V","metaDescription":"ABB 1SAM101901R0001 front-mount auxiliary contact block, 9 mm wide, 1NO+1NC rated 3 A at 400 V. Specified into the BOM on RFQ; close functional sibling 1SAM101901R0002 also quoted.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Auxiliary Contacts"],"specifications":{"Width":"9 mm","title":"Auxiliary Contact 3A 400V 1NO+1NC 9mm","Contacts":"1NO+1NC","description":"Auxiliary Contact 3A 400V 1NO+1NC 9mm","Rated Current":"3 A","Rated Voltage":"400 V","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.77 – $23.60","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b82b8403088935eeb07d64e0d0727e3c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What contacts does the ABB 1SAM101901R0001 carry?","answer":"One normally-open and one normally-closed contact (1NO+1NC) in the 9 mm housing, rated 3 A at 400 V."},{"question":"What is the listed width of 1SAM101901R0001?","answer":"9 mm, the same module width as the 2NO sibling 1SAM101901R0002."},{"question":"Is 1SAM101901R0001 a drop-in alternative to 1SAM101901R0002?","answer":"Only the contact arrangement differs (1NO+1NC vs 2NO); width, current and voltage ratings are identical, so a panel built around R0002 does not require rewiring when moving to R0001 — only the contact assignment has to be re-checked against the control logic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SAM101901R0001","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/1SAM101901R0001 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}}