Siemens 5SY4335-7 3-Pole MCB, C Curve, 35 A, 400 V AC, 6 kA, DIN Rail

This Siemens 5SY4335-7 miniature circuit breaker stands out with a 35 A rated current and C tripping characteristic, making it well-suited for circuits with moderate inrush currents such as motors and lighting. Its 3-pole design and 6 kA breaking capacity provide reliable protection in commercial and industrial installations.

Highlights

• 3-pole MCB with thermal-magnetic trip unit
• C curve for general applications with moderate inrush
• 35 A rated current, 400 V AC, 6 kA breaking capacity
• DIN rail mounting (EN 60715) for quick installation
• IP20 protection at terminals (IP40 with enclosure)

In daily use

Installation is straightforward on standard DIN rails, and the screw terminals accept solid conductors up to 35 mm² and stranded up to 25 mm². The breaker operates reliably in ambient temperatures from -25 °C to +45 °C and is rated for 10,000 electrical and 20,000 mechanical switching cycles.

Full specifications

• Number of poles: 3
• Tripping characteristic: C
• Rated current (In): 35 A
• Rated voltage (Ue): 400 V AC
• Rated switching capacity (Icn): 6 kA at 400 V AC
• Frequency: 50/60 Hz
• Mounting type: DIN rail (EN 60715)
• Degree of protection: IP20 (terminals), IP40 (with enclosure)
• Operating temperature range: -25 to +45 °C
• Electrical endurance: 10,000 switching cycles
• Mechanical endurance: 20,000 switching cycles
• Terminal type: Screw terminals
• Terminal capacity (solid wire): 0.75 - 35 mm²
• Terminal capacity (stranded wire): 0.75 - 25 mm²
• Standard compliance: IEC/EN 60898-1
• Pollution degree: 3
• Overvoltage category: III
• Type of release: Thermal-magnetic
• Power loss per pole: 2.8 W
• Insulation voltage (Ui): 440 V AC

Final note

The 5SY4335-7 combines proven Siemens quality with a compact design, ensuring dependable circuit protection for demanding environments.