The Schneider Electric NSX100S 3‑Pole Molded Case Circuit Breaker (MCCB) is a reliable protective device designed for low‑voltage three‑phase electrical distribution systems.
Specifications
General
Product Type: Molded Case Circuit Breaker (MCCB)
Series / Family: ComPacT NSX S‑Frame
Number of Poles: 3 (three phases)
Rated Current (In): 80 A
Mounting Type: Fixed panel or switchboard installation
Application: Protection of low‑voltage three‑phase distribution circuits
Electrical Ratings
Rated Operational Voltage (Ue): Suitable for low‑voltage AC systems (typically up to ~690 V AC)
Rated Frequency: 50/60 Hz
Rated Insulation Voltage (Ui): Designed for standard low‑voltage distribution systems
Rated Impulse Withstand Voltage (Uimp): Engineered to withstand transient overvoltages
Protection & Trip Characteristics
Trip Mechanism: Thermal‑magnetic trip unit (factory configured for general protection)
Overload Protection: Responds to sustained overload currents to protect conductors and equipment
Short‑Circuit Protection: Responds to high fault currents to interrupt abnormal conditions
Protection Functions: Long‑time (thermal) and instantaneous (magnetic) protection
Breaking Capacity & Performance
Breaking Capacity: Designed to safely interrupt fault currents commonly encountered in low‑voltage distribution systems
Performance: Provides reliable fault interruption to safeguard downstream circuits and equipment
Mechanical & Environmental
Terminal Connections: Screw or clamp type terminals for secure conductor attachment
Mechanical Durability: Built for repeated operations and long service life
Design: Compact modular housing for efficient panelboard and switchboard integration