Motor Protection Switch 2.5-4A/3 BE2

Motor protection switch designed for protecting asynchronous electric motors from overload and short circuit. The device provides reliable circuit disconnection when preset current values are exceeded.

Technical specifications:

• Current adjustment range: 2.5 - 4.0A
• Rated operating voltage: 230/240V, 400/415V, 440V, 500V, 690V
• Rated frequency: 50/60 Hz
• Rated insulation voltage [Ui]: 690V
• Rated impulse withstand voltage [Uimp]: 8000V
• Trip current at AC-3: 4A
• Short-circuit release setting value: 51A
• Number of poles: 3
• Overload release type: Bimetallic (thermal)
• Release class: 10A
• Degree of protection: IP20
• Protection against electric shock: Finger-proof protection

Contacts and switching:

• 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 cycles
• Maximum switching frequency at AC-3: 30 operations/hour

Installation and connection:

• Connection type: Screw terminal
• Main contact cross-section: 8.8 mm²
• Main cable tightening torque: 1.7 Nm
• Control circuit cable tightening torque: 1.2 Nm
• Mounting method: U-shaped rail (DIN rail)
• Permissible vertical deviation during mounting: ±5°
• Permissible deviation in horizontal plane: ±5°

Operating conditions:

• Ambient temperature: from -5°C to +40°C
• Relative humidity: 50%
• Maximum installation altitude: 2000 m
• Pollution degree: 3
• Power consumption: 6.0 W

Standards compliance:

The device complies with the requirements of IEC EN 60947-2 and IEC EN 60947-4-1.

Dimensions and weight:

• Width: 44.5 mm
• Height: 94.9 mm
• Depth: 91.3 mm
• Net weight: 0.29 kg

Manufacturer: Schrack

Packaging: 1 pc. or 60 pcs.