Dold BA9043/002 3/N AC50 undervoltage monitoring relay:

 Product Overview

• Model: BA9043/002
• Series: VARIMETER
• Function: Undervoltage monitoring for 3-phase 4-wire AC systems
• Nominal Voltage: 3/N AC 220/380 V or 230/400 V
• Frequency Range: 50–400 Hz
• Application: Protects motors and equipment from undervoltage, phase failure, incorrect phase sequence, and reverse voltages

 Technical Specifications

• Time Delay: Adjustable from 0.5 to 10 seconds
• Output Contacts: 2 changeover (DPDT) contacts
• Mounting Type: DIN rail
• Width: 45 mm
• Dimensions: 132 × 45 × 73 mm
• Thermal Current: 6 A
• Switching Capacity:
  • 3 A (AC-11, 230 V)
  • 2 A (DC-11, 24 V)
• Response Value (RAN): Adjustable from 0.85 to 1.05 × UN
• Fall-back Value: Adjustable from 0.75 to 0.95 × UN
• Input Overload Capability: 1.2 × UN continuous
• Measurement Principle: Arithmetic mean
• LED Indicators: Show operating status and contact state
• Protection Class: IP20 (terminals), IP40 (housing)