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

Download existing graphical data for this product:

• Product Datasheet
• Installation Manual
• SENTRON Product Catalog
• Technical Documentation