The Schneider Electric iNS250 is a three-pole, 250A frame Intelligent Molded Case Circuit Breaker (iMCCB) from the next-generation iNS series. It is a revolutionary device designed for the digital age, embedding advanced protection, precise measurement, and native Ethernet connectivity directly into the breaker.
Parameters:
Parameter Value / Description
Product Line / Frame Size iNS250
Rated Ultimate Current (Iu) 250A Frame
Rated Working Current (In) Adjustable up to 250 A via the intelligent trip unit.
Number of Poles 3
Breaking Capacity (Key Selection) Must be specified: Available in multiple levels (e.g., N1, H1, H2, H3) to match system fault current.
Example: iNS250 N1 (Standard) or iNS250 H2 (High).
Rated Ultimate Breaking Capacity (Icu) Depends on selected rating. Typical High level (H2): ~70 kA at 400V AC (IEC 60947-2).
Rated Operational Voltage (Ue) Up to 690 V AC
Intelligence Core Integrated iCTU (Intelligent Connected Trip Unit) – a digital brain built into the device.
Communication (Native & Embedded) Dual Embedded Ethernet Ports (RJ45) with TCP/IP Modbus protocol. Supports daisy-chaining for simplified network topology.
Digital I/Os (Embedded) 2x Digital Inputs (DI) + 2x Digital Outputs (DO) for external control and signaling (e.g., interlocking, remote commands, alarms).
Protection Functions Fully adjustable Long-time (L), Short-time (S), Instantaneous (I), and Ground Fault (G) protection via the iCTU.
Measurement & Monitoring Comprehensive & High Accuracy: Phase/Neutral currents, Voltages (line & phase), Frequency, Power (kW, kvar, kVA), Power Factor, Energy (kWh, kvarh), Demand, Harmonics (THD), and Device Health (contact wear, temperature).
Standard IEC 60947-2
Mounting Fixed or Withdrawable (via separate base/insert kit).
Connection Front or Rear connection (depends on kit).