{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2CCS891001R0104","brand":"ABB","brandSlug":"abb","productSlug":"2CCS891001R0104","canonicalUrl":"https://aoctrl.com/abb/2CCS891001R0104","factsUrl":"https://aoctrl.com/api/mcp/products/2CCS891001R0104","rawCanonicalId":null},"summary":{"shortDescription":"ABB 2CCS891001R0104, High Performance Miniature Circuit Breaker, 1-pole, C-curve, 10 A, 690 V, IP20, DIN rail mount.","salesMarkdown":"The 2CCS891001R0104 is a 1-pole miniature circuit breaker (MCB) with a C-curve trip characteristic, rated 10 A continuous current. The 25 kA rated short-circuit breaking capacity (Icn) tells you it can safely interrupt a fault up to 25 kA under standard conditions; the 36 kA ultimate breaking capacity (Icu) is the maximum it can break once and still function after. For most commercial and light industrial panelboards fed by a transformer of 400 kVA or less, 25 kA Icn is sufficient — but if your fault current study shows higher, the 36 kau Icu gives you a safety margin for the one-shot event. The 27 mm width (1-module) means it occupies a single pole position in a distribution board — tight for retrofit where panel space is already allocated. Screw terminals accept up to 3.5 Nm torque, which is typical for 10 A branch circuits; use a torque screwdriver to avoid terminal heating. IP20 finger-safe rating means it's protected against solid objects larger than 12.5 mm (fingers) but not against moisture — install inside a panel or enclosure with a higher IP-rated door. ## Voltage and overvoltage class Rated insulation voltage of 690 V means the internal clearance and creepage distances are designed for 690 V phase-to-phase systems — common in 400/690 V industrial grids (e.g., IT systems or delta-connected supplies). Overvoltage category IV means it's rated for installation at the origin of the installation (main distribution board), where transient overvoltages are highest. That's a step above the usual Cat III for sub-distribution.","metaTitle":"2CCS891001R0104 MCB 1P C-curve 10A 25kA Icn, DIN rail","metaDescription":"2CCS891001R0104 miniature circuit breaker, 1-pole C-curve 10A, 25kA Icn / 36kA Icu, 690V insulation, IP20, DIN rail. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"82.5 mm","Poles":"1","Width":"27 mm","title":"2CCS891001R0104","Height":"95 mm","IP Rating":"IP20","description":"High Performance Miniature Circuit Breaker, C, 10A, 690V, IP20","Mounting Type":"DIN Rail Mount","Rated Current":"10 A","lifecycle_stage":"current","Overvoltage Category":"IV","Terminal Contact Type":"Screw","Rated Insulation Voltage":"690 V","Tripping Characteristics":"C","Tightening Torque - Screw-Type Max.":"3.5 Nm","Rated Short-Circuit Breaking Capacity Icn":"25 kA","Rated Short-Circuit Breaking Capacity Icu":"36 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$126.30 – $132.70","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3f991224e138f1318b7daba5f729b8e4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the breaking capacity of this MCB?","answer":"Rated short-circuit breaking capacity Icn is 25 kA; ultimate breaking capacity Icu is 36 kA. The Icn figure governs standard duty; Icu is the one-shot maximum."},{"question":"What does the C-curve mean for my application?","answer":"C-curve trips at 5 to 10 times rated current (50–100 A for this 10 A unit). It is suited for circuits with moderate inrush, such as motor starters, contactor coils, and small transformers. For purely resistive loads (heaters, lighting) a B-curve would trip faster; for heavy motor inrush a D-curve may be needed."},{"question":"What is the physical size for panel layout?","answer":"Width 27 mm (1 module), height 95 mm, depth 82.5 mm. Fits standard DIN-rail enclosures; the 82.5 mm depth means it clears most 100 mm deep enclosures, but check your gland plate clearance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/2CCS891001R0104","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/2CCS891001R0104 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}}