Siemens SENTRON 5SY4363-7 Miniature Circuit Breaker MCB 3-Pole C 63A 10kA

The Siemens SENTRON 5SY4363-7 is a high-quality miniature circuit breaker (MCB) designed for reliable protection of electrical installations. With a rated current of 63 A and a tripping characteristic of C, it provides short-circuit and overload protection for commercial and industrial applications. This 3-pole MCB features a breaking capacity of 10 kA according to EN 60898-1 and is suitable for DIN rail mounting.

Advantages

• Reliable protection against short circuits and overloads
• High breaking capacity of 10 kA ensures safety
• Compact 3-module width (54 mm) saves space
• Easy installation on DIN rail (EN 60715)
• Suitable for a wide range of ambient temperatures (-25 to +45 °C)

Suitable for

• Distribution boards in commercial buildings
• Industrial control panels
• Residential electrical systems requiring high current protection
• Lighting and motor circuits

Key specifications

• Product Type: Miniature Circuit Breaker (MCB)
• Series: SENTRON
• Number of Poles: 3-pole
• Tripping Characteristic: C
• Rated Current (In): 63 A
• Rated Short-Circuit Breaking Capacity (Icn): 10 kA (EN 60898-1)
• Rated Voltage (AC): 400 V
• Frequency: 50/60 Hz
• Mounting Type: DIN Rail (EN 60715)
• Degree of Protection: IP20 (terminals), IP40 (with connected conductors)
• Electrical Endurance: 10,000 switching cycles
• Mechanical Endurance: 20,000 switching cycles
• Terminal Type: Screw terminals
• Connectable Conductor Cross-Section (Solid): 0.75 - 35 mm²
• Connectable Conductor Cross-Section (Stranded): 0.75 - 25 mm²
• Tightening Torque: 2.5 - 3 Nm
• Ambient Operating Temperature: -25 to +45 °C
• Standards: EN 60898-1, IEC 60898-1
• Module Width: 3 TE (54 mm)
• Overvoltage Category: III

Recommendations

For optimal performance, ensure proper tightening torque and use appropriate conductor sizes. This MCB is ideal for protecting circuits with high inrush currents, such as motors and transformers.