SIEMENS 5SY6103-7 MCB 1-Pole C 3A 6kA 230/400V AC

Protect your electrical circuits from overload and short circuit with the SIEMENS 5SY6103-7 miniature circuit breaker (MCB). This 1-pole device is rated for 3 A with a C tripping characteristic, making it suitable for residential and commercial installations where moderate inrush currents are expected.

Who is it for

Electricians, panel builders, and maintenance technicians who need a reliable, DIN-rail mountable MCB for distribution boards and control panels. Ideal for protecting lighting circuits, socket outlets, and small motors.

Main features

• 1-pole, 3 A rated current, C characteristic
• Rated voltage: 230/400 V AC, 50/60 Hz
• Breaking capacity: 6 kA according to IEC 60898-1
• Mounting on 35 mm DIN rail
• Screw terminals for conductors up to 35 mm² solid or 25 mm² stranded
• Ambient temperature range: -25 °C to +45 °C
• Mechanical and electrical service life: 10,000 switching cycles

Specifications

• Brand: SIEMENS
• Model: 5SY6103-7
• MPN: 5SY61037
• EAN: 4001869246017
• Rated current: 3 A
• Number of poles: 1
• Tripping characteristic: C
• Rated voltage: 230/400 V AC
• Rated switching capacity: 6 kA
• Frequency: 50/60 Hz
• Mounting type: DIN rail
• Protection class (terminals): IP20
• Protection class (with cover): IP40
• Standard: IEC 60898-1
• Type of voltage: AC
• Overvoltage category: 3
• Pollution degree: 3
• Ambient temperature: -25 to +45 °C
• Terminal type: screw terminal
• Conductor cross-section (solid): 0.75 - 35 mm²
• Conductor cross-section (stranded): 0.75 - 25 mm²
• Mechanical service life: 10,000 switching cycles
• Electrical service life: 10,000 switching cycles

Tips

Ensure the MCB is installed by a qualified electrician in accordance with local regulations. For use with a cover, the protection class increases to IP40.