Description

Schneider C40H42D400

Introduction

Schneider Electric is a leading global provider of energy management and automation solutions, known for its innovative approach to electrical protection. Circuit breakers play a crucial role in safeguarding electrical systems from overload and short circuits, making products like the Schneider C40H42D400 indispensable in various applications.

What is the Schneider C40H42D400?

it is a high-performance molded case circuit breaker (MCCB) designed to provide reliable protection for electrical circuits. With its robust construction and advanced features, this MCCB ensures the safe operation of industrial, commercial, and residential electrical installations.

Technical Specifications

Understanding the technical specifications of it helps in assessing its suitability for specific environments:

  • Current Rating: 400 A
  • Voltage Rating: 240/415 V AC
  • Breaking Capacity: 50 kA
  • Dimensions: 140 mm x 90 mm x 130 mm
  • Weight: 2.5 kg

These specifications highlight the Schneider C40H42D400’s capability to handle high currents and provide reliable protection against electrical faults.

Key Features

it is equipped with features that enhance its performance and safety:

  • High Breaking Capacity: Capable of interrupting high fault currents up to 50 kA, ensuring protection in demanding environments.
  • Enhanced Safety Features: Built-in mechanisms protect against overloads, short circuits, and other electrical faults.
  • Compact Design: Despite its high capacity, it maintains a compact footprint, facilitating easier installation and space efficiency.

Advantages of Using Schneider C40H42D400

Choosing it offers several advantages:

  • Reliability: Known for its durability and consistent performance under varying load conditions.
  • Versatility: Suitable for industrial, commercial, and residential applications, adapting to different electrical system requirements.
  • Cost-Effectiveness: Long-term savings due to minimal maintenance and high operational reliability.

Applications of Schneider C40H42D400

it finds application in diverse settings:

  • Industrial: Protects critical machinery and equipment in manufacturing facilities.
  • Commercial: Ensures uninterrupted power supply in office buildings, retail spaces, and data centers.
  • Residential: Safeguards home electrical systems, providing peace of mind to homeowners.

Installation Process

Installing the Schneider C40H42D400 follows a systematic approach to ensure safety and optimal performance.

Pre-installation Checklist

  • Verify electrical system compatibility with MCCB specifications.
  • Ensure all power sources are turned off before installation.

Step-by-Step Installation Guide

  1. Mounting: Secure the MCCB in the distribution panel using appropriate mounting hardware.
  2. Wiring: Connect incoming and outgoing wires to the designated terminals, following the wiring diagram provided.
  3. Testing: Once wired, conduct a thorough check to ensure all connections are secure.
  4. Power Up: Restore power and verify the MCCB’s functionality through testing procedures.

Safety Precautions

  • Use personal protective equipment (PPE) during installation.
  • Follow manufacturer guidelines and local electrical codes to prevent hazards.

Maintenance Tips

Maintaining it prolongs its lifespan and ensures reliable operation:

  • Regular Inspection: Check for signs of wear, corrosion, or loose connections.
  • Cleaning and Upkeep: Keep the MCCB and its surroundings clean to prevent dust accumulation.
  • Troubleshooting Tips: Refer to the user manual for troubleshooting common issues like tripping or abnormal operation.

Additional information

brands

Schneider Electric

Specifications

Main
Range ComPacT new generation
Product name ComPacT NSX new generation
Device short name NSX400H
product or component type Circuit breaker
Device application Distribution
poles description 4P
Protected poles description 4D 3D + N/2 3D
Neutral position Left
[In] rated current 400 A at 40 °C
[Ue] rated operational voltage 690 V AC 50/60 Hz
Network type AC
Network frequency 50/60 Hz
Suitability for isolation Yes conforming to EN/IEC 60947-2
Utilisation category Category A
[Icu] rated ultimate short-circuit breaking capacity 100 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 70 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 65 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 20 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 20 kA at 600 V AC 50/60 Hz conforming to UL 508
Performance level H 70 kA 415 V AC
Trip unit name MicroLogic 2.3
Trip unit technology Electronic
Trip unit protection functions LSoI
Control type Toggle
Circuit breaker mounting mode Fixed
Complementary
[Ui] rated insulation voltage 800 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage 8 kV
[Ics] rated service short-circuit breaking capacity 100 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 70 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 65 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 11 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Mechanical durability 15000 cycles
Electrical durability 12000 cycles at 440 V In/2 6000 cycles at 440 V In 6000 cycles at 690 V In/2 3000 cycles at 690 V In
Power dissipation per pole 19.2 W
mounting support Backplate
Mounting position Horizontal and vertical Flat on the back
Upside connection Front
downside connection Front
Connection pitch 45 mm
Protection type L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection
Trip unit rating 400 A at 40 °C
Long-time pick-up adjustment type Ir (thermal protection) Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range 160…400 A
Long-time protection delay adjustment type tr Fixed
[tr] long-time protection delay adjustment range 400 s at 1.5 x Ir 16 s at 6 x Ir 11 s at 7.2 x Ir
Neutral protection settings 0.5 x Ir (3D + N/2) 1 x Ir (4D) No protection (3D)
thermal memory 20 minutes before and after tripping
Short-time protection pick-up adjustment type Isd Adjustable 9 settings
[Isd] Short-time protection pick-up adjustment range 1.5...10 x Ir
Short-time protection delay adjustment type tsd Fixed
Instantaneous protection pick-up adjustment type Ii Fixed
[Ii] instantaneous protection pick-up adjustment range 4800 A
Earth-leakage protection Without
Zone selective interlocking ZSI Without
Number of slots for electrical auxiliaries 6 slot(s)
Local signalling Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload
Width (W) 185 mm
Height (H) 255 mm
Depth (D) 110 mm
net weight 7.9 kg
Environment
Standards EN/IEC 60947
Product certifications CCC EAC Marine
Overvoltage category Class II
Electrical shock protection class Class II
Pollution degree 3 conforming to IEC 60664-1
IP degree of protection IP40 conforming to IEC 60529
IK degree of protection IK07 conforming to IEC 62262
Ambient air temperature for operation -25…70 °C
ambient air temperature for storage -50…85 °C
Relative humidity 0…95 %
Operating altitude 0...2000 m without derating 2000 m...5000 m with derating
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 15.000 cm
Package 1 Width 20.000 cm
Package 1 Length 29.000 cm
Package 1 Weight 7.403 kg
Unit Type of Package 2 S04
Number of Units in Package 2 2
Package 2 Height 30.000 cm
Package 2 Width 40.000 cm
Package 2 Length 60.000 cm
Package 2 Weight 15.509 kg

Main Document

Main Document

Data Sheet : Download

Main Document

Data Sheet : Download

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