Specifications General Product Name: Molded‑Case Circuit Breaker (MCCB) Model: S2N160‑100A 4P EFE Series: ABB SACE Isomax S2N Number of Poles: 4 poles (4P) Terminal Type: Extended front terminals (EFE) for easier front cabling Electrical Ratings Rated Operational Current (In): 100 A (fixed thermal setting) Frame Rating: 160 A frame capacity (device frame size able to house adjustable protections around this rating) ABB图书馆 Rated Operational Voltage (Ue): Up to 690 V AC Rated Insulation Voltage (Ui): Typically 800–1000 V (standard for SACE breakers) Rated Impulse Withstand Voltage (Uimp): ~8 kV Rated Frequency: 50/60 Hz Short‑Circuit Breaking Capacity: Depends on specific trip unit and variants; standard S2N design supports high breaking capacities suitable for industrial distribution networks Thermal/Magnetic Trip: Thermomagnetic protection integrated for combined overload and short‑circuit response Standards: Designed according to IEC/EN 60947‑2 for low‑voltage circuit breakers Protection & Performance Overload Protection: Yes (thermal element) Short‑Circuit Protection: Yes (magnetic trip) Adjustability: Fixed trip settings for 100 A (some variants allow adjustable extensions within the 160 A frame) ABB图书馆 Neutral Pole: Full 4‑pole protection ensures neutral is also disconnected under fault conditions Mechanical Mounting: Panel / switchboard installation Connection: Screw or bolt front terminals (extended front) for cable sizes per frame rating Mechanical Endurance: High cycle life designed for industrial switching and protection applications Operating Temperature: Standard industrial ambient range Applications Overcurrent protection in three‑phase power distribution systems Protection of feeders, motor circuits, and branch circuits Use in switchgear and control panels Suitable for commercial and industrial electrical installations Typical Use Cases Main or sub‑distribution circuit protection Protection of machine feeders and motor circuits Integration in power panels where neutral disconnection is required Protection point near large loads such as HVAC, pumps, and industrial equipment