MCB Circuit Breaker 3P (20-63A) AC – CNC

The YCB9 (3P) breaker is the essential, reliable solution for protecting three-phase circuits against overcurrent and short circuit. It responds very quickly to electrical faults, protecting motors, industrial equipment and cables from burning. Its precise thermal and magnetic calibration makes it ideal as a motor protection breaker or as a branch breaker in main distribution boards.

⚡ Features:

Three-phase protection (3P): disconnects all three lines simultaneously when a fault occurs in any of them, preventing motors from running on "two phases" and protecting them from damage.

Excellent breaking capacity: handles short-circuit currents efficiently, keeping the whole electrical system safe.

Reinforced contacts: made of arc-resistant, anti-welding materials that extend the device's service life.

Easy, tidy installation: fully compatible with standard DIN Rail mounting and takes up compact space in the board.

Clear visual indicators: markings show the breaker state (ON/OFF) for easy follow-up by technicians.

🛠️ Technical specifications:

Brand: CNC Electric.

Model: YCB9 Series.

Poles: 3P (three phases).

Trip type: thermal-magnetic.

Breaking capacity (Icn): available in 4.5kA and 6kA.

Trip curve: B, C or D curve depending on the load to be protected.

Standard: IEC/EN 60898-1.