Description

Schneider LV432676 | circuit breaker ComPact NSX400F, 36 kA at 415 VAC, MicroLogic 2.3 trip unit 400 A, 3 poles 3d

Technical Specifications

  • Model: LV432676
  • Brand: Schneider Electric
  • Product Type: Molded Case Circuit Breaker (MCCB)
  • Series: ComPacT NSX400F
  • Trip Unit Type: MicroLogic 2.3
  • Rated Current (In): 400A
  • Breaking Capacity: 36 kA at 415V AC
  • Number of Poles: 3 poles (3D)
  • Protection Functions:
    • Long-time (overload) protection
    • Short-time protection
    • Instantaneous short-circuit protection
  • Voltage Rating: Up to 690V AC
  • Mounting Type: Fixed mounting
  • Control Type: Manual operation with rotary handle or remote control options
  • Standards Compliance: IEC 60947-2, ensuring high safety and performance standards

Key Features

  1. High Breaking Capacity (36 kA at 415V AC) – Ensures safe interruption of high fault currents, preventing damage to electrical systems.
  2. MicroLogic 2.3 Trip Unit – Provides precise electronic protection with adjustable long-time, short-time, and instantaneous settings.
  3. 400A Rated Current – Designed for medium to high-power applications, making it ideal for industrial use.
  4. 3-Pole (3D) Configuration – Suitable for three-phase electrical systems, ensuring balanced power distribution.
  5. Compact & Durable Design – Optimized for space-saving panel installation with robust construction for long-lasting performance.
  6. Advanced Safety & Reliability – Complies with international standards (IEC 60947-2) for enhanced operational safety.
  7. Easy Installation & Maintenance – Compatible with Schneider plug-in kits, rotary handles, and remote control accessories for flexible operation.

Applications

The Schneider LV432676 ComPacT NSX400F circuit breaker is ideal for a wide range of applications, ensuring reliable circuit protection in various environments:

  1. Industrial Power Distribution – Protects electrical circuits in factories, manufacturing plants, and processing facilities.
  2. Commercial Buildings – Ensures safe and efficient power management in malls, office complexes, and hotels.
  3. Renewable Energy Systems – Used in solar and wind power installations for efficient circuit protection.
  4. Data Centers & IT Infrastructure – Prevents power disruptions and equipment failures in critical infrastructure.
  5. Motor Control Centers (MCCs) – Provides overload and short-circuit protection for large industrial motors.
  6. Infrastructure & Public Utilities – Supports electrical networks in hospitals, airports, and transport systems.

Additional information

brands

Schneider Electric

Specifications

Main
Range ComPact
product name ComPact NSX
Range of product ComPact NSX400...630
Device short name NSX400F
Product or component type Circuit breaker
Device application Distribution
Number of poles 3P
Protected poles description 3t
[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 40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 85 kA at 240 V AC 50/60 Hz conforming to UL 508 25 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 480 V AC 50/60 Hz conforming to UL 508 20 kA at 600 V AC 50/60 Hz conforming to UL 508 20 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 30 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
Performance level F 36 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 40 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 380/415 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 10 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 25 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 30 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
Mechanical durability 15000 cycles
Electrical durability 3000 cycles at 690 V In 6000 cycles at 690 V In/2 6000 cycles at 440 V In 12000 cycles at 440 V In/2
Mounting support Backplate
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 16 s at 6 x Ir
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) 140 mm
Height (H) 255 mm
Depth (D) 110 mm
Product weight 6.05 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 cm
Package 1 Width 16 cm
Package 1 Length 29 cm
Package 1 Weight 5.589 kg
Unit Type of Package 2 S04
Number of Units in Package 2 3
Package 2 Height 30 cm
Package 2 Width 40 cm
Package 2 Length 60 cm
Package 2 Weight 17.434 kg
Unit Type of Package 3 P12
Number of Units in Package 3 12
Package 3 Height 80 cm
Package 3 Width 80 cm
Package 3 Length 120 cm
Package 3 Weight 80 kg
Contractual warranty
Warranty 18 months

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