Product Overview

The 5SJ61 C3 Miniature Circuit Breaker (MCB) with auxiliary contact is a high-performance low-voltage circuit protection device designed for residential, commercial and industrial electrical systems. It provides reliable overload and short-circuit protection for 1-pole AC circuits, with an integrated auxiliary contact for remote status monitoring and control circuit interlocking. This C-curve MCB is rated at 3A and is compatible with standard DIN rail mounting for quick and secure installation in distribution panels and control cabinets.

Key Features

• Reliable overload and short-circuit protection for 3A single-pole circuits
• Integrated auxiliary contact for remote status indication and control interlocking
• C-curve tripping characteristic, ideal for resistive and inductive loads
• Standard DIN rail mounting for fast, tool-free installation in distribution boxes
• High-quality flame-retardant housing with excellent electrical insulation performance
• Compact design saves panel space while maintaining full protection functionality
• Suitable for AC 230/400V low-voltage distribution systems

Specifications

Applications

This 5SJ61 C3 MCB with auxiliary contact is widely used across multiple industries and scenarios, including:

• Industrial control panels and low-voltage distribution cabinets
• Commercial building electrical distribution systems
• Residential consumer units and sub-circuit protection
• HVAC system control and protection circuits
• Lighting and small power distribution circuits
• Automation equipment and machinery control panels
• Remote status monitoring and alarm systems requiring contact feedback

Package Contents

• 1 x 5SJ61 C3 1-Pole Miniature Circuit Breaker with Auxiliary Contact
• 1 x Installation and Operation Manual