The Schneider Electric Compact NSX100M N 3P 40A is a 3-pole, 40A, M-frame molded case circuit breaker (MCCB) from the premium Compact NSX series. The "N" indicates it is equipped with a standard thermal-magnetic (TM-D) trip unit. This compact and reliable device is designed for overload and short-circuit protection of three-phase circuits in commercial, industrial, and infrastructure applications.
Specifications
Parameter Specification
Product Series Compact NSX
Product Line NSX100M
Number of Poles 3 Poles (3P)
Rated Current (In) 40 Amperes
Trip Unit Type N – Standard Thermal-Magnetic (TM-D)
Trip Unit Characteristics • Thermal Protection (Ir): Fixed at 40A (inverse-time).
• Magnetic Protection (Im): Fixed instantaneous setting, typically ~10 x In (400A).
Frame Size (Iu max) 100M Frame (Maximum current rating for this physical size is 100A)
Breaking Capacity (Icu @ 400V AC) 36 kA, 50 kA, or 70 kA (Selectable based on specific catalog code, e.g., suffix 2.2, 3.0).
Rated Operational Voltage (Ue) 690 V AC
Rated Insulation Voltage (Ui) 1000 V AC
Short-Time Withstand (Icw) Typically 7.5-10 kA for 1s (model dependent)
Connection Front or rear connection, screw terminals.
Terminal Capacity Suitable for copper/aluminum cables (typical up to 35 mm²).
Mounting Fixed or plug-in versions available. DIN Rail or Panel Mount.
Width (3P) 105 mm
Mechanical Life 20,000 operations
Electrical Life 8,000 operations at rated current
Standards IEC/EN 60947-2, UL 489, CCC, CE
Ambient Temperature -25°C to +70°C