The Schneider Electric NSX100M N MA is a three‑pole molded case circuit breaker (MCCB) designed to protect low‑voltage three‑phase electrical distribution systems.
Specifications
General
Product Range: ComPacT NSX M‑Frame
Device Type: 3‑Pole Molded Case Circuit Breaker (MCCB)
Trip Mechanism: Thermal‑magnetic (MA type)
Number of Poles: 3 (three phases)
Rated Current (In): 80 A
Mounting: Fixed panel or switchboard installation
Application: Protection of three‑phase low‑voltage power distribution circuits
Electrical Ratings
Rated Operational Voltage (Ue): Suitable for low‑voltage AC systems (commonly up to ~690 V AC)
Rated Frequency: 50/60 Hz
Rated Insulation Voltage (Ui): Designed for standard low‑voltage distribution insulation requirements
Rated Impulse Withstand Voltage (Uimp): Withstands typical transient overvoltages in distribution systems
Protection & Trip Characteristics
Thermal Protection (Overload): Yes – responds to sustained overload currents via thermal element
Magnetic Protection (Short‑Circuit): Yes – responds to high fault current via magnetic element
Trip Mechanism Type: Manual reset after trip event
Protection Functions:
Long‑time overload protection
Instantaneous magnetic short‑circuit protection
Breaking Capacity & Performance
Breaking Capacity: Engineered to safely interrupt fault currents likely to occur in low‑voltage three‑phase installations
Performance: Reliable interruption of abnormal currents to protect conductors and equipment
Mechanical & Environmental
Terminal Connections: Screw or clamp type terminals for secure conductor attachment
Mechanical Durability: Designed for reliable actuation and long service life
Design: Compact modular housing for efficient space usage
Manual Operation: Manual ON/OFF control with clear status indication