Siemens 5SY73167 interruttore automatico magnetotermico 3 poli caratteristica C 16 A 15 kA 230/400 V AC

Electricians and panel builders use the Siemens 5SY73167 miniature circuit breaker to protect three-phase circuits in industrial control panels and building installations. It trips magnetically on short circuits and thermally on overloads, with a C characteristic suited to motors and general loads.

Key specifications

• Rated current: 16 A
• Number of poles: 3
• Tripping characteristic: C
• Rated short-circuit breaking capacity: 15 kA
• Rated voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Installation depth: 70 mm
• Module width: 3 units

Why choose it

The 5SY73167 combines a 15 kA breaking capacity with a compact three-module width, making it suitable for high fault-current applications where space is limited. Screw terminals accept solid conductors from 0.75 to 35 mm², ensuring secure connections.

Ideal use cases

• Protection of three-phase motor circuits
• Distribution boards in industrial facilities
• Building installations with high prospective short-circuit currents

Good to know

The breaker mounts on a standard DIN rail and operates in ambient temperatures from -25 to +55 °C. It is designed for AC systems and complies with IEC/EN 60898-1.