The Schneider Electric Compact NSX100H 3‑Pole Molded Case Circuit Breaker with MA50 Magnetic Trip Unit is a low‑voltage protective device designed for reliable short‑circuit protection in three‑phase AC electrical systems.
Specifications
Parameter Specification
Manufacturer Schneider Electric
Product Series ComPacT NSX100H Molded Case Circuit Breaker
Model / Trip Unit MA50 Magnetic Trip Unit (adjustable magnetic protection)
Product Type Molded Case Circuit Breaker (MCCB) with magnetic trip unit
Poles 3P / 3R (3 phases) — sometimes described as 3P3D (3 protected poles)
Rated Trip Unit Current 50 A magnetic trip rating (MA50)
Trip Technology MA (Magnetic only) — instantaneous short‑circuit protection
Adjustable Instantaneous Pickup Range ~6…14 × In (magnetic pick‑up settings via dial)
Rated Operational Voltage (Ue) 690 V AC, 50/60 Hz
Network Type AC three‑phase
Interrupting Capacity (Icu) 70 kA @ 380/415 V AC (typical H‑rating)
Utilisation Category Category A (general distribution)
Rated Insulation Voltage (Ui) 800 V AC (typical NSX range)
Rated Impulse Withstand (Uimp) 8 kV
Mounting Fixed installation (panel / switchboard)
Manual Operation Ergonomic toggle handle for manual ON/OFF
Standards Compliance EN/IEC 60947‑2, CCC, EAC (varies by market)
Auxiliary Contacts / Accessories Optional auxiliary contacts, shunt trip, undervoltage trip available separately (not included)