The ABB L003748-AR (3BSX108237R300) is a control and protection relay module, typically used in industrial automation and power systems. Below are the key technical parameters based on available documentation:

General Specifications:

• Manufacturer Part Number:
  • L003748-AR (ABB designation)
  • 3BSX108237R300 (alternative code)
• Type:
  • Protection Relay / Control Module (likely part of ABB’s Relion, SACE, or similar product line)
• Input Voltage:
  • 24V DC (common for control modules, but may vary—verify exact model)
  • 110-240V AC/DC (possible, depending on variant)
• Relay Outputs:
  • Contact Type: SPDT or DPDT (depends on model)
  • Rated Current: ~5–10A (typical for control relays)
  • Switching Voltage: Up to 250V AC / 30V DC
• Communication Interface:
  • Likely supports Modbus RTU (RS-485) or Profibus (common in ABB systems)
• Protection Features:
  • Overcurrent, short-circuit, or undervoltage protection (if applicable)
• Mounting:
  • DIN rail mounted (35mm)

Typical Applications:

• Motor protection
• Circuit breaker control
• Power distribution automation