Product Overview

5SY7 Series Miniature Circuit Breaker - Advanced protection solution for specialized industrial applications with superior 15kA breaking capacity. Specifically designed for electrical circuits with strong pulse-generating equipment such as transformers, solenoid valves, and high-inrush current loads.

Key Specifications

• Voltage Rating: 400V AC (230V single phase)
• Breaking Capacity: 15kA
• Poles: 3-pole configuration
• Tripping Characteristic: D (10-20 × In magnetic tripping)
• Rated Current: 10A
• Standards Compliance: EN 60898-1, EN 60947-2, UL 1077, CSA 22.2
• Frequency: 50/60 Hz
• Mounting Width: 54mm (3 x 18mm modules)

Technical Features

• Combined terminals at both ends for versatile connection options
• Rectangular terminals accommodate pin busbars and cables up to 35mm²
• Touch protection according to EN 50274 safety requirements
• Handle end position sealable for security and tamper prevention
• Degree of protection: IP20 with connected conductors, IP40 in handle area with distribution cover
• CFC and silicone-free construction for environmental compliance
• Service life: 20,000 actuations on average with rated load

Installation Specifications

• Conductor Cross-sections:
  • 1-wire solid/stranded: 0.75-35mm²
  • 2-wire same cross-section: 0.75-10mm²
  • Finely stranded with end sleeve: 0.75-25mm²
• Terminal tightening torque: 2.5-3 Nm
• Mounting: Any position on standard DIN rail (35mm)
• Ambient temperature: -25°C to +55°C (max. 95% humidity)
• Storage temperature: -40°C to +75°C

Applications

Specifically designed for protection of circuits with high pulse loads including:

• Transformer primary and secondary circuits
• Solenoid valve control systems
• Inductive load applications with high inrush currents
• Motor starting circuits with significant pulse generation
• Welding equipment protection
• Power supply circuits for pulse-generating equipment
• Industrial automation control circuits
• Heavy-duty switching applications

Compliance & Certifications

• European Standards: EN 60898-1, EN 60947-2
• North American: UL 1077 (Supplementary Protector), CSA 22.2
• International: IEC standards compliance
• Safety approvals available at: www.siemens.com/lowvoltage/certificates

Physical Dimensions

• Height: 90mm
• Width: 54mm (3 modules)
• Depth: 70mm
• Net Weight: 0.480 kg
• Country of Origin: China

Additional Information

• EAN: 4001869450841
• Export Control: ECCN: N / AL: N
• RoHS Compliant: Since 01.04.2013
• WEEE Take-Back: Yes
• REACH Article 33: Contains lead - refer to product documentation for safe handling procedures

Download existing graphical data for this product:

Technical Data Sheet

5SY7 Series Complete Manual

Product Certificates

Installation Manual

SENTRON MCB Technical Documentation

CAD Drawing Files - LV10 Catalog