Siemens Miniature circuit breaker, 3-pole, 400V, 6kA, 40A
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Siemens

Siemens Miniature circuit breaker, 3-pole, 400V, 6kA, 40A Part number 5SY6340-7

EAN / Barcode 4001869247038
Product Type Control Panel
Product Class Miniature circuit breaker (MCB)
Category Power Distribution
Sub-category Circuit Breaker
ETIM Class Miniature circuit breaker (MCB)
In Stock
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✓ RoHS Declaration♻ EPD

Product Description

Product Overview

The Siemens 5SY6340-7 is a high-performance miniature circuit breaker designed for reliable electrical protection in commercial and industrial applications. This 3-pole circuit breaker features a 40 A current rating with 400 V operational voltage and 6 kA breaking capacity, making it ideal for protecting high-current three-phase electrical circuits and equipment from overloads and short circuits.

Key Features

  • 6 kA Breaking Capacity: Reliable protection against fault currents in standard applications
  • 3-Pole Configuration: Provides comprehensive protection for three-phase electrical systems
  • C-Type Characteristic: Optimized for general applications with moderate inrush currents
  • High Current Rating: 40 A rating suitable for motor circuits and high-load applications
  • Compact Design: Space-efficient construction suitable for standard DIN rail mounting (D=70 mm)
  • German Engineering: Manufactured in Germany ensuring premium quality and reliability

Technical Specifications

  • Current Rating: 40 A
  • Voltage Rating: 400 V
  • Breaking Capacity: 6 kA
  • Number of Poles: 3
  • Trip Characteristic: C-type
  • Net Weight: 0.464 kg
  • Depth: 70 mm (D=70 mm)
  • Country of Origin: Germany
  • EAN: 4001869247038

Applications

This miniature circuit breaker is particularly suitable for:

  • Motor protection circuits
  • High-load three-phase equipment
  • Industrial machinery protection
  • Commercial electrical installations
  • Distribution boards and panels
  • HVAC equipment protection
  • Manufacturing equipment circuits
  • Pump and compressor protection
  • Power distribution systems

Compliance & Certifications

  • RoHS Compliance: Compliant since October 1, 2006
  • WEEE Directive: Subject to take-back obligations under directive 2012/19/EU
  • REACH Regulation: Currently no SVHC substances identified, regularly screened according to REACH requirements
  • Export Control: AL: N / ECCN: N
  • Product Class: B - Return restricted, contact Siemens partner for returns

Product Classification

  • eClass: 27-14-19-01 (versions 6-14)
  • ETIM: EC000042 (versions 7-9)
  • UNSPSC: 39-12-16-03
  • IDEA: 4897
  • Product Group: 5503

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Technical Specifications

Additional equipment possibleYes
Ambient temperature during operating-25 °C
Built-in depth70 mm
Connectable conductor cross section multi-wired35 mm²
Connectable conductor cross section solid-core0.75 mm²
Current limiting class3
Degree of protection (IP)IP20
Frequency50 Hz
Number of poles (total)3
Number of protected poles3
Over voltage category3
Pollution degree3
Power loss10.5 W
Rated current40 A
Rated impulse withstand voltage Uimp4 kV
Rated insulation voltage Ui440 V
Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V6 kA
Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V6 kA
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V10 kA
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V10 kA
Rated voltage400 V
Release characteristicC
Voltage typeAC
Width in number of modular spacings3
Part Width58 mm
Part Height94 mm
Part Depth84 mm
Weight464 g
Country of OriginGermany
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