Siemens SENTRON 5SY6332-6 MCB, 3-pole, B32A, 6kA, 400V AC

The Siemens SENTRON 5SY6332-6 is a 3-pole miniature circuit breaker (MCB) with B tripping characteristic, rated at 32 A and 400 V AC, offering a short-circuit breaking capacity of 6 kA. It protects cables and equipment against overload and short-circuit currents in building installations and industrial control systems.

Advantages

This MCB provides reliable protection with a high switching capacity of 6 kA, suitable for demanding applications. Its compact 3-module width (54 mm) saves space on DIN rails, and screw terminals accept conductors up to 35 mm², ensuring secure connections. The device operates in a wide temperature range from -25°C to +45°C and offers a long service life of 10,000 switching cycles.

Suitable for

• Distribution boards in residential and commercial buildings
• Protection of three-phase circuits such as motors, heaters, and lighting
• Industrial control panels requiring robust short-circuit protection

Key specifications

• Number of poles: 3
• Tripping characteristic: B
• Rated current: 32 A
• Rated voltage: 400 V AC
• Breaking capacity: 6 kA
• Frequency: 50/60 Hz
• Mounting: DIN rail (EN 60715 TH35)
• Terminal capacity: 0.75–35 mm² (solid), 0.75–25 mm² (stranded)
• Mechanical and electrical service life: 10,000 cycles
• Module width: 3 TE (54 mm)

Recommendations

For reliable protection of three-phase circuits with moderate inrush currents, the 5SY6332-6 is an excellent choice. Ensure proper sizing of upstream protection and verify short-circuit current at the installation point.