Sygonix SY-6440996 3-Pole MCB B20 20A 415V AC 6kA DIN Rail

Install this 3-pole miniature circuit breaker in a distribution board to protect three-phase circuits against overload and short-circuit. It is rated for 20 A with a B tripping characteristic, making it suitable for residential and commercial installations where moderate inrush currents are expected, such as lighting and socket circuits.

Key specifications

• Number of poles: 3
• Rated current: 20 A
• Tripping characteristic: B
• Rated voltage: 415 V AC
• Short-circuit breaking capacity: 6 kA
• Mounting: DIN rail
• Module width: 3 TE
• Frequency: 50/60 Hz
• Connection type: screw terminals
• Max. conductor cross-section solid: 25 mm²
• Max. conductor cross-section flexible: 16 mm²
• Energy limitation class: 3
• Operating temperature range: -25 to +55 °C

Why choose it

With a 6 kA breaking capacity and energy limitation class 3, this MCB provides reliable protection for downstream equipment. Its compact 3-module width saves space in the distribution board, and screw terminals accept conductors up to 25 mm² solid, simplifying installation.

Ideal use cases

• Protection of three-phase circuits in residential distribution boards
• Commercial lighting and power circuits with moderate inrush currents
• DIN rail mounting in enclosures with IP40 front protection

Good to know

The device complies with EN 60898-1 and is designed for operation at 50/60 Hz. Terminal protection is IP20, while the front face is IP40 when installed. It is suitable for ambient temperatures from -25 °C to +55 °C.