Motor Protection Circuit Breaker 24-32A/3 BE2 PB

Motor protection circuit breaker designed for controlling and protecting three-phase induction motors in industrial AC networks. The device provides overload protection through a thermal release and short-circuit protection.

Main Characteristics:

Current and Voltage Parameters:

• Adjustable trip range: 24–32 A
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 8000 V
• Rated frequency: 50/60 Hz
• Short-circuit release trip current: 416 A

Mechanical Characteristics:

• Number of poles: 3 (three-pole)
• Main contacts: 3 closing contacts
• Auxiliary contacts: 1 closing + 1 opening contact
• Mechanical endurance of main contacts: 100,000 operations
• Mechanical endurance of auxiliary contacts: 100,000 operations
• Maximum switching frequency at AC-3: 30 operations per hour

Structural Features:

• Overload release design: thermal
• Degree of protection: IP20
• Protection against electrical shock: finger-proof
• Mounting design: U-shaped busbar
• Connection type: screw terminal
• Cable cross-section: up to 8.8 mm²

Tightening Torques:

• Main cable: 1.7 Nm
• Control circuit cables: 1.2 Nm

Operating Conditions:

• Operating temperature range: –5 °C to +40 °C
• Relative humidity: 50 %
• Maximum installation altitude: 2000 m
• Pollution degree: 3
• Vertical mounting tolerance: ±5°
• Horizontal mounting tolerance: ±5°

Additional Data:

• Power loss: 6.0 W
• Weight: 0.29 kg
• Compliance with standards: IEC EN 60947-2, IEC EN 60947-4-1
• Manufacturer: Schrack