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Thermistor + phase failure relay, 2 C/O, 400V AC, DIN rail mount

Stock Code: MLD4BS

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The GIC MLD4BS combines thermistor-based thermal protection with phase failure and sequencing monitoring for 3-phase systems. It provides integrated safety in one compact DIN rail unit.

🔧 Technical Highlights:

  • Supply Voltage: 400V AC (3-phase, 3-wire)
  • Functions: Thermistor monitoring, Phase loss, Phase sequence, Asymmetry
  • Relay Output: 2 C/O contacts
  • Reset: Auto, Manual, Remote
  • Trip Delay: ON delay <350 ms, OFF delay 150 ms
  • Mounting: DIN rail

✅ Benefits:

  • Prevents overheating and phase anomalies
  • Reduces component failure in rotating equipment
  • All-in-one protection simplifies wiring

🚀 Applications:

  • 3-phase motor starters and drives
  • Industrial HVAC and compressors
  • Panels where both voltage and temperature are critical

The MLD4BS offers integrated phase and temperature protection in one DIN-mounted solution.

Supply Voltage3x400Vac
Output Relay / Channels2 X SPNO
Output Relay Rating5A @ 230V
MountingDIN Rail
Size22.5mm
Connections3 Wire
ProtectionIP20, IP40
Weight0.18
Type File Name
Data Sheet ptctherm.pdf
Technical Drawings 12 terminal housing & base.stp.zip

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