Motor Protection Switch 37-50A/3 BE2

Motor protection switch for three-phase networks with adjustable current range 37–50 A. Designed to protect asynchronous motors from overloads and short circuits.

Main characteristics:

• Rated voltages: 400/415 V and 660/690 V
• Rated frequency: 50–60 Hz
• Number of poles: 3
• Current adjustment range: 37–50 A
• Short circuit trip current: 700 A
• Rated impulse withstand voltage: 8000 V
• Rated insulation voltage: 690 V
• Release class: Class 10A
• Overload trip type: Thermal

Contacts:

• Main contacts: 3 closing contacts
• Auxiliary contacts: 1 closing + 1 opening contact

Mechanical endurance:

• Main contacts: 100,000 cycles
• Auxiliary contacts: 100,000 cycles
• Maximum switching frequency (AC-3): 30 operations per hour

Connection:

• Connection type: Screw terminal
• Maximum cable cross-section: 25 mm²
• Main cable tightening torque: 6 Nm
• Installation: U-shaped busbar

Operating conditions:

• Temperature range: −5 °C to +40 °C
• Relative humidity: 50%
• Degree of protection: IP20
• Maximum installation altitude: 2000 m
• Pollution degree: 3
• Protection against electrical shock: Finger-proof
• Permissible deviation during installation: ±5° (vertical and horizontal)

Power consumption: 22 W

Dimensions and weight:

• Width: 63.60 mm
• Height: 118.40 mm
• Depth: 119.50 mm
• Weight: 0.93 kg

Standards: IEC EN 60947-2, IEC EN 60947-4-1

Manufacturer: Schrack