Product Overview

The 5SY7 series miniature circuit breaker is a compact protective device designed for residential and light commercial electrical installations. This 1+N-pole circuit breaker provides comprehensive protection against overload and short circuit conditions with 15 kA breaking capacity, featuring C-curve tripping characteristics optimized for general applications including residential circuits and light commercial loads.

Key Features & Specifications

• Current Rating: 20A rated current with C-curve tripping characteristics
• Configuration: 1+N-pole design with neutral switching for comprehensive single-phase protection
• Voltage Rating: 230V AC rated voltage with 15 kA breaking capacity
• Tripping Curve: C-curve characteristic suitable for general purpose applications
• Compact Design: Space-efficient construction for residential and light commercial use
• Protection Class: Standard IP protection for electrical enclosure installations
• Breaking Capacity: 15 kA fault current interruption capability
• Standards Compliance: Complies with international miniature circuit breaker standards
• Applications: Ideal for residential, commercial, and light industrial installations

Technical Characteristics

• Pole Configuration: Single-pole with neutral switching (1+N)
• Voltage Type: AC operation with 230V rating
• Frequency: 50/60 Hz standard frequency operation
• Current Limiting: Provides current limitation during fault conditions
• Installation: Standard DIN rail mounting for electrical panels
• Connection: Screw terminal connections for secure wiring
• Operating Temperature: Standard ambient temperature range for indoor use
• Mechanical Life: High mechanical endurance for reliable operation

Applications & Features

Perfect for protecting single-phase circuits in residential homes, apartments, small commercial buildings, and light industrial facilities. Ideal for lighting circuits, socket outlets, small appliances, and general power distribution where reliable overcurrent protection is essential. Features as part of the SENTRON protection components family, providing effective protection against overloads and short circuits with automatic tripping functionality.

Safety & Protection

Designed for comprehensive single-phase circuit protection with automatic neutral switching. Provides reliable isolation during fault conditions to prevent equipment damage and ensure personnel safety. The 1+N configuration ensures both live and neutral conductors are simultaneously disconnected for complete circuit isolation.

Compliance & Certifications

• Standards: RoHS compliant, WEEE compliant
• Safety: Contains REACH substances (Lead) at <0.1% w/w - no risk when used as intended

Download existing graphical data for this product:

• Technical Datasheet (PDF)
• Product Support Page
• SENTRON Protection Components Overview
• SiePortal Product Page