EatonFAZ-D10/3UL 1077 Supplementary Protector – 10 A, Three-Pole, D Curve, 15 kAIC, DIN Rail

Product Description

What this part is: Eaton FAZ-D10/3, an industrial miniature circuit breaker classed as a UL 1077 supplementary protector. Series: FAZ cable-in cable-out. Product Type: Supplementary protector. Amperage Rating: 10 A. Number Of Poles: Three-pole. Trip Curve: D. Trip Type: 10–20 × In. Interrupting Rating: 15 kAIC. Frequency: 50–60 Hz. Terminals: Standard. Mounting: DIN rail. GTIN: 4015082788926. Country of Origin: Romania. What the D curve buys: Trip Curve: D. Trip Type: 10–20 × In — the magnetic element holds off until the current reaches ten to twenty times the 10 A rating, so on this device between 100 A and 200 A. That magnetic band is set high on purpose, to ride through the startup inrush of motors, transformers and other strongly inductive loads without nuisance tripping, while the thermal element still protects the conductor against sustained overload. A B or C curve on the same 10 A frame trips in a much lower magnetic band and would drop out on the same motor start. Ratings and standards: Amperage Rating: 10 A. Interrupting Rating: 15 kAIC. Frequency: 50–60 Hz. Number Of Poles: Three-pole, common trip across the three poles on a single toggle. Certifications: UL 1077, CSA Standard C22.2 No. 235, IEC 60947-2. The UL 1077 listing classes this as a supplementary protector for use inside equipment downstream of branch-circuit protection, which is the standard duty for a control-panel motor or transformer circuit on an industrial machine. Mounting and wiring: Mounting: 35 mm DIN rail, snap-on. Terminals: Standard screw terminals. Frame: Cable-in cable-out, so line and load both land on screw terminals rather than on a busbar comb. The FAZ frame is reverse-feed capable, meaning line and load can be taken on either end without derating, and the mechanism is trip-free so the toggle cannot be held closed onto a fault. Quantity and configuration: Unit Quantity: 1 Pc. Supplied as one three-pole device on a common trip bar, complete with its toggle and screw terminals. Interchange guidance: FAZ-D10/3-NA is the related North American execution of this same 10 A, three-pole, D-curve frame, listed to UL 489 as a branch-circuit breaker at 10 kA on 480Y/277 VAC rather than to UL 1077 as a supplementary protector. The two carry different listings and different interrupting figures, so the -NA is a related part and not a drop-in equivalent. Searchable variants of this designation: FAZ-D10/3, FAZD10/3, FAZ D10/3, FAZ-D10-3, FAZ D10 3, and the older Klöckner-Moeller FAZ nomenclature.