Motor Protective Switch 9-14/3 BE2

Motor protective switch designed to protect three-phase asynchronous motors from overloads and short-circuit currents. The device is equipped with a thermal release with adjustable current range 9–14 A and an electromagnetic short-circuit release with a setting value of 170 A.

Main characteristics:

• Rated operating voltage: 230/240 V, 400/415 V, 440 V, 500 V, 690 V
• Rated frequency: 50/60 Hz
• Number of poles: 3
• Rated insulation voltage [Ui]: 690 V
• Rated impulse withstand voltage [Uimp]: 8000 V
• Release class: Class 10A
• Switching capacity at AC-3: 14 A
• Maximum switching frequency AC-3: 30 operations/hour

Constructive features:

• Thermal release provides protection against sustained overloads
• Electromagnetic instant-action release for protection against short circuits
• Three normally open main contacts and auxiliary contacts (1 normally open + 1 normally closed) for control circuits
• Mechanical durability: 100,000 cycles for main contacts and auxiliary contacts

Installation and operation:

• Type of connection: screw terminals
• Main contact diameter for cable connection: 8.8 mm²
• Tightening torque for main cable: 1.7 Nm
• Tightening torque for control circuit cables: 1.2 Nm
• Mounting on U-shaped rail
• Degree of protection: IP20 (protection against finger contact)
• Maximum vertical deviation: 5°
• Maximum deviation in horizontal plane: 5°
• Maximum altitude above sea level: 2000 m
• Pollution degree: 3
• Operating temperature range: from –5 °C to +40 °C
• Relative humidity: 50%
• Power loss: 6.0 W

Compliance standards:

• IEC EN 60947-2 (low-voltage combination apparatus)
• IEC EN 60947-4-1 (electromechanical contactors and motor starters)

Manufacturer: Schrack (Austria). Supplied in packages of 1 or 60 units.