Smart motorstarter with autom. phase sequence correction UG 9256/804

Product description

The smart motorstarter UG 9256/804 and UG 9256/807 is used to provide always a clockwise phase sequence and to start asynchronous motors. Independent of the the pase sequence on the input it will always provide clockwise sequence on the output to the motor. The unit also protects the motor against phase failure and motor overload. The relays of the reversing circuit switch without current. This provides a long electrical life. To reduce the motor starting current and protect the drive, the motor starter is eqquipped with a fixed soft start function.

Technical specifications

Advantages

• Up to 4 functions in one unit
  - Providing clockwise phase sequence at the motor connection terminals
  - Phase failure detection
  - Motorprotection Class 10 A, Class 5
  - Softstart
• Galvanic mains separation by forcibly guided contacts contact opening min. 0.5 mm (UG 9256/807)
• 66 % less space
• Simple and time-saving commissioning as well as user-friendly operation through setting via potentiometer on absolute scale
• Hybrid relay combines benefits of relay technology with non-wearing semiconductor technology
• High availablility by
  - Temperature monitoring of semiconductors
  - High withstand voltage up to 1500 V
  - Load free relay reversing function

Features

• According to UL 60947-4-2, IEC/EN 60947-4-2
• To reverse the rotary field
• For 3-phase motors with rated motor current from Ie 0.1 A ... 0.5 A or 0.5 ... 2 A or 1.5 A ... 9 A
• 1 potentiometer für setting of rated motor current
• 3 LEDs for status indication
• Reversing with relays without current, switching with thyristor
• Galvanic separated 24V-inputs for clockwise
• Reset button on front
• Connection facility for external reset button
• Relay indicator output for operation
• Galvanic separation between control circuit and power circuit
• Galvanic separation of motor terminals from mains voltage in off state or fault condition (UG 9256/807)
• Width 22.5 mm