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PTC thermistor & phase protection relay with 1 NO + 1 NC output, 400 VAC.

MLD7BS is an industrial control component designed for reliable operation. It runs on 400 VAC and includes relay outputs rated 5 A at 250 VAC / 30 VDC.

Stock Code: MLD7BS

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The GIC MLD7BS monitors line voltage and protects against UV/OV with fixed delays.

🔧 Technical Highlights:

  • Supply Voltage: 85–270 VAC/DC or 24 VAC/DC (model specific)
  • Functions: Monitors PTC thermistor sensor for motor protection against over-temperature; can include single phasing prevention
  • Timing Range: Trip delay adjustable (model specific)
  • Output Contacts: 1 C/O
  • Contact Rating: 5A @ 250 VAC / 28 VDC
  • Self-reset or manual reset
  • DIN rail mounting

✅ Benefits:

  • High-accuracy voltage windowing for sensitive loads
  • Reliable performance in surge-prone environments
  • DIN-rail mounting for quick panel integration

🚀 Applications:

  • Genset and UPS circuits
  • Lighting and HVAC panels
  • Solar and inverter systems

MLD7BS ensures secure line voltage integrity in AC applications.

FAQs

  • Q: What supply range does the relay monitor?
    A: It is specified for 300 VAC systems.
  • Q: What output contacts are provided?
    A: It provides 1 C/O relay.
Supply Voltage3x400Vac
Output Relay / Channels1 X SPNO 1 X SPNC
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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