Product Overview

5SY7 Series Miniature Circuit Breaker - High-performance protection for industrial and commercial applications with superior 15kA breaking capacity. Designed for universal use in lamp and motor circuits with higher starting currents, providing reliable overcurrent protection.

Key Specifications

• Voltage Rating: 400V AC (230V single phase)
• Breaking Capacity: 15kA
• Poles: 3-pole configuration
• Tripping Characteristic: C (5-10 × In magnetic tripping)
• Rated Current: 25A
• 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 wiring configurations
• Rectangular terminals accommodate pin busbars and cables up to 35mm²
• Touch protection according to EN 50274 standards
• Handle end position sealable for enhanced security
• 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
• Ambient temperature: -25°C to +55°C (max. 95% humidity)
• Storage temperature: -40°C to +75°C

Applications

Ideal for protection of lamp and motor circuits including:

• Fluorescent and LED lighting systems
• Motor control circuits with moderate starting currents
• General purpose distribution panels
• Commercial and industrial installations
• Heating, ventilation, and air conditioning (HVAC) systems
• Socket outlet circuits in commercial buildings

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: 4001869449807
• Export Control: ECCN: N / AL: N
• RoHS Compliant: Since 01.04.2013
• WEEE Take-Back: Yes
• REACH Article 33: Contains lead - see product documentation for safe handling information

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