The part number 347017-10 refers to the Kriwan SE-E1 Protection Module, which is commonly used with Bitzer compressors. Here's a quick breakdown of what it does and why it's important:

Key Features

• Voltage Range: 115–230V AC, 50/60Hz
• Application: Designed for screw compressors, especially Bitzer models
• Functionality:
  • Monitors motor temperature using PTC thermistors
  • Detects phase sequence and phase failure
  • Provides relay output for motor protection
  • Includes lockout and delay features for repeated faults
• Operating Range: Ambient temperature from 30°C to +70°C
• Compact Design: Easy to install, approx. 200g in weight