Schneider C4035E400 ComPacT NSX400 Trip Unit 3P 400 A MicroLogic 5

The Schneider Electric C4035E400 is a MicroLogic 5.3 E electronic trip unit for ComPacT NSX400/630 new generation circuit breakers, rated 400 A at 40°C on 690 V AC networks. It provides 3-pole LSI protection - long-time overload, short-time, and instantaneous short circuit - with an integrated LCD display and built-in energy metering.

Technical specifications:

• Commercial reference: C4035E400
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX400/630 new generation
• Product type: Electronic trip unit
• Trip unit name: MicroLogic 5.3 E
• Poles: 3P
• Trip unit rating: 400 A at 40°C
• Rated voltage [Ue]: 690 V AC 50/60 Hz
• Network type: AC, 50/60 Hz
• Protection function: LSI (long-time, short-time, instantaneous)
• [Ir] long-time pick-up adjustment range: 160...400 A, 9 settings
• [tr] long-time delay adjustment range: 15...400 s at 1.5 x Ir
• [Isd] short-time pick-up adjustment range: 1.5...10 x Ir, 9 settings
• [tsd] short-time delay range: 0...0.4 s (I²t=off), 0.1...0.4 s (I²t=on)
• [Ii] instantaneous pick-up adjustment range: 1.5...12 x In
• Zone selective interlocking (ZSI): included
• Display: LCD multimeter with energy metering
• IP protection: IP40 per IEC 60529
• Electrical shock protection class: Class II
• Operating temperature: -25...70°C
• Mounting: Fixed
• Standard: EN/IEC 60947-2

Features and benefits:

• Fully adjustable LSI protection with 9 settings each for long-time and short-time pick-up thresholds
• Thermal memory retains device thermal state for 20 minutes before and after tripping
• Zone selective interlocking (ZSI) enables coordinated protection across distribution levels
• LCD multimeter delivers energy metering, power quality monitoring, demand values, and time-stamped event logging
• Local LED signalling for device ready status, overload at 90% Ir (orange), and overload at 105% Ir (red)

Applications:

• Main and sub-distribution switchboards in industrial facilities
• Power distribution panels in commercial and large building installations
• Selective protection coordination in multi-level distribution networks
• Installations requiring combined overcurrent protection and energy monitoring

Compliant with EN/IEC 60947-2. Part of the Schneider Electric ComPacT NSX new generation range.

Also known as: Schneider C4035E400, Schneider Electric C4035E400, MicroLogic 5.3E trip unit, NSX400 electronic trip unit.