Siemens 5SY5110-7 MCB, 1-Pole, 10 A, Tripping Characteristic C, 6 kA, 230/400 V AC

Electricians and panel builders install the Siemens 5SY5110-7 miniature circuit breaker in distribution boards to protect cables and equipment from overloads and short circuits. This 1-pole MCB with C tripping characteristic handles moderate inrush currents, making it suitable for lighting and socket circuits in residential and commercial buildings.

Key specifications

• Rated current: 10 A
• Number of poles: 1
• Tripping characteristic: C
• Rated switching capacity: 6 kA
• Rated voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Mounting: DIN rail (EN 60715)
• Degree of protection: IP20
• Ambient operating temperature: -25 to +45 °C
• Terminal type: screw terminals
• Max. conductor cross-section: 35 mm² solid, 25 mm² stranded
• Mechanical service life: 10,000 switching cycles
• Electrical service life: 10,000 switching cycles
• Pollution degree: 3
• Overvoltage category: III
• Standard: IEC/EN 60898-1

Why choose it

The 5SY5110-7 combines reliable protection with compact design. Its C characteristic prevents nuisance tripping from short current peaks while ensuring fast disconnection under fault conditions. The screw terminals accept large conductors, simplifying installation in tight spaces.

Ideal use cases

• Protection of lighting circuits in homes and offices
• Socket outlet circuits with moderate inrush loads
• Control circuits in industrial panels
• Retrofit projects requiring DIN rail compatibility

Good to know

The MCB is designed for DIN rail mounting according to EN 60715 and meets IEC/EN 60898-1. It operates reliably in ambient temperatures from -25 °C to +45 °C and is rated for pollution degree 3 and overvoltage category III.