{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9C20431","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9C20431","canonicalUrl":"https://aoctrl.com/schneider/A9C20431","factsUrl":"https://aoctrl.com/api/mcp/products/A9C20431","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iCT, contactor, A9C20431, 1P, 1 NO, 25 A AC-7a / 8.5 A AC-7b, 127 V AC 60 Hz coil, clip-on 35 mm DIN rail, IP20.","salesMarkdown":"The Schneider Electric A9C20431 is a single-pole (1P) contactor from the Acti9 iCT range, designed for residential and small-commercial panelboards. It clips onto a 35 mm symmetrical DIN rail and occupies two 9 mm module pitches (18 mm wide). The contactor provides one normally-open (1 NO) power pole, rated for 25 A in AC-7a duty (general resistive and inductive loads) and 8.5 A in AC-7b duty (motor loads). Coil is 127 V AC at 60 Hz, maintained control signal type. The 25 A AC-7a rating covers lighting, heating, and general resistive loads up to that current. The 1 NO pole means it closes one line path only; no auxiliary contact is integrated in the base unit. Rated operational voltage is 250 V AC at 60 Hz, so this is a single-phase line-voltage contactor — not for three-phase motor circuits or DC switching. Insulation voltage is 500 V AC, giving headroom for transient overvoltages on a 250 V system. Electrical durability varies by duty cycle: 100,000 cycles at 25 A AC-7a, 30,000 cycles at 8.5 A AC-7b, and 30,000 cycles under AC-3 motor switching. Mechanical durability is 1,000,000 cycles, so in lightly loaded or resistive applications the contacts will outlast the mechanical life. Switching frequency is capped at 100 operations per day — fine for lighting contactors or occasional motor start/stop, not for high-cycle automation. Inrush power is 15 VA; steady-state holding power is 1.3 W at 250 V AC. The coil draws a brief surge on pickup but settles to a low holding current — important when the control transformer or PLC output is sized near its limit. The 18 mm width (2 module pitches) matches standard Acti9 modular enclosure spacing. Depth is 68.5 mm, height 81 mm — fits within a standard 100 mm deep distribution board. IP20 finger-safe terminals; IP40 when installed in a modular enclosure. Terminal blocks accept up to 6 mm² rigid or 4 mm² flexible on the power side, 2.5 mm² on the control side. Tightening torque is 0.8 N·m for both power and control circuits.","metaTitle":"Schneider Electric A9C20431 Acti9 iCT Contactor, 127 VAC, 25","metaDescription":"Schneider Electric A9C20431 Acti9 iCT contactor, 1P, 1 NO, 25 A AC-7a / 8.5 A AC-7b, 127 VAC 60 Hz coil, clip-on DIN rail, IP20, current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactors"],"specifications":{"Depth":"68.5 mm","Poles":"1P","Width":"18 mm","Colour":"White","Height":"81 mm","Standards":"IEC/EN 61095","Noise level":"30 dB","9 Mm Pitches":"2","Control type":"Remote control","Network type":"AC","Product name":"Acti9 iCT","Maximum power":"1.3 W at 250 V AC","Mounting mode":"Clip-on","Market segment":"Residential Small commercial","Tropicalisation":"2 conforming to EN 60947-4-1 2 conforming to EN 61095 2 conforming to IEC 1095","lifecycle_stage":"current","Local signalling":"Action indicator","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"2","Range Of Product":"Acti9","Device short name":"iCT","Network frequency":"60 Hz","Relative humidity":"95 % at 55 °C","Tightening torque":"Control circuit: 0.8 N.m Power circuit: 0.8 N.m","Compatibility code":"ICT","Device application":"Motor-heating-lighting","Operating altitude":"2000 m","inrush power in VA":"15 VA","Control signal type":"Maintained","Switching frequency":"100 switching operations/day","Electrical durability":"100000 cycles IEC/EN 61095 25 A 60 Hz AC-7A 30000 cycles IEC/EN 61095 8.5 A 60 Hz AC-7B 30000 cycles IEC/EN 61095 60 Hz AC-7C 100000 cycles EN/IEC 60947-4-1 60 Hz AC-1 30000 cycles EN/IEC 60947-4-1 60 Hz AC-3 30000 cycles EN/IEC 60947-4-1 60 Hz AC-5a 30000 cycles EN/IEC 60947-4-1 60 Hz AC-5b","Mechanical durability":"1000000 cycles","Connections - terminals":"Control circuit: tunnel type terminals2 cable(s) 1.5 mm² rigid Power circuit: tunnel type terminals1 cable(s) 1...4 mm² flexible Power circuit: tunnel type terminals1 cable(s) 1.5...6 mm² rigid Control circuit: tunnel type terminals1 cable(s) 1.5...2.5 mm² rigid Control circuit: tunnel type terminals2 cable(s) 1.5...2.5 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Pole contact composition":"1 NO","Product or component type":"Contactor","[Uc] control circuit voltage":"127 V AC 60 Hz","[Ui] rated insulation voltage":"500 V AC 50/60 Hz","[Ie] rated operational current":"25 A AC-7A 8.5 A AC-7B","[Ue] rated operational voltage":"250 V AC 60 Hz","Hold-in power consumption in VA":"3.8 VA","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-5...60 °C","[Uimp] rated impulse withstand voltage":"4 kV"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/vn/en/product/A9C20431/ict-25a-1no-127v-60hz-contactor/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9C20431/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the A9C20431?","answer":"Single-pole (1P), 1 NO contact. Rated operational current: 25 A AC-7a, 8.5 A AC-7b. Rated operational voltage: 250 V AC 60 Hz. Control circuit voltage: 127 V AC 60 Hz. Electrical durability: 100,000 cycles at 25 A AC-7a, 30,000 cycles at 8.5 A AC-7b. Mechanical durability: 1,000,000 cycles."},{"question":"What standards does the A9C20431 comply with?","answer":"It complies with IEC/EN 61095 (household and similar electromechanical contactors) and EN/IEC 60947-4-1 (low-voltage switchgear – contactors and motor-starters). Pollution degree 2, tropicalisation class 2 per those standards."},{"question":"What is the mounting and enclosure requirement?","answer":"Clip-on mounting on 35 mm symmetrical DIN rail. IP20 degree of protection (finger-safe terminals), IP40 when installed in a modular enclosure. Width 18 mm (2 module pitches), depth 68.5 mm, height 81 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9C20431","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/A9C20431 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}}