Motor Protection Switch 2.5-4A/3 BE2 PB

Motor Protection Switch 2.5-4A/3 BE2 PB — three-pole motor protection switch manufactured by Schrack, designed for protection of asynchronous electric motors against overload and short circuit.

Main Characteristics:

• Current adjustment range: 2.5-4.0A
• Rated voltage: 690V (Ui)
• Impulse withstand voltage: 8000V (Uimp)
• Mains frequency: 50/60Hz
• Number of poles: 3 poles
• Short-circuit trip current: 51A
• Trip current at AC-3: 4A

Design Features:

• Thermal overload release
• Main contacts: 3 closing contacts (3NO)
• Auxiliary contacts: 1 closing + 1 opening contact (1NO+1NC)
• Mechanical endurance of main contacts: 100,000 cycles
• Mechanical endurance of auxiliary contacts: 100,000 cycles
• Maximum switching frequency at AC-3: 30 operations/hour
• Protection degree: IP20 (finger-proof protection)

Installation and Connection:

• Connection type: screw terminals
• Cable cross-section for main contacts: 8.8mm²
• Tightening torque for main cable: 1.7Nm
• Tightening torque for control circuit cables: 1.2Nm
• Installation on U-shaped busbar
• Maximum permissible deviation in vertical direction: 5°
• Maximum permissible deviation in horizontal plane: 5°

Operating Conditions:

• Ambient temperature: -5°C to +40°C
• Relative humidity: 50%
• Maximum installation altitude: 2000m
• Pollution degree: 3
• Power loss: 6.00W

Physical Dimensions:

• Width: 44.50mm
• Height: 80.80mm
• Depth: 91.30mm
• Weight: 0.29kg

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

Packaging: 1 pcs or 60 pcs