Siemens 5SY41046 Miniature Circuit Breaker 4 A 1P C 6 kA 230/400 V

The Siemens 5SY41046 is a high-quality miniature circuit breaker (MCB) from the 5SY4 series, designed for reliable protection of electrical installations against overloads and short circuits. With a rated current of 4 A and a tripping characteristic of C, it is ideal for protecting circuits with moderate inrush currents, such as lighting and general-purpose loads. This 1-pole breaker operates at 230/400 V AC and offers a rated short-circuit breaking capacity of 6 kA, ensuring safety and compliance with EN 60898-1.

Advantages

Compact 1-module design (18 mm) saves space on DIN rails. Screw terminals allow secure connection of conductors up to 35 mm². Robust construction ensures long mechanical and electrical service life of 10,000 cycles. Suitable for ambient temperatures from -25 °C to +45 °C, making it versatile for various environments.

Suitable for

• Protection of lighting circuits, socket outlets, and small appliances in residential and commercial buildings
• Installation in distribution boards with DIN rail (TH 35 mm) mounting
• Applications requiring C-curve tripping characteristic for moderate inrush currents

Key specifications

• Rated current: 4 A
• Number of poles: 1
• Tripping characteristic: C
• Rated voltage: 230/400 V AC
• Rated short-circuit breaking capacity (Icn): 6 kA
• Rated frequency: 50/60 Hz
• Mounting: DIN rail (TH 35 mm)
• Degree of protection: IP20 (terminals)
• Connection: Screw terminals
• Conductor cross-section: 0.75 - 35 mm² (solid/stranded)
• Module width: 1 module (18 mm)
• Ambient temperature: -25 °C to +45 °C
• Standards: EN 60898-1

Recommendations

For optimal protection, ensure the breaker is installed by a qualified electrician and that the total load does not exceed 4 A. Pair with Siemens distribution boards and accessories for best compatibility.