SCR power regulator
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MaxWell MS-3DA4880 80A Three-Phase Solid State Relay with Heatsink and Cooling Fa

The MaxWell MS-3DA4880 is a heavy-duty 80A Three-Phase Solid State Relay (DC to AC), designed for reliable control of 24-680VAC loads. This ready-to-use kit comes fully pre-assembled with a customized heavy-duty aluminum heatsink and a high-velocity cooling fan, ensuring optimal thermal management and continuous operation under heavy loads. Featuring advanced Back-to-Back SCR technology, Zero-Crossing switching, and a built-in RC snubber circuit, it delivers superior surge protection, minimal EMI, and long-term stability. Ideal for industrial heaters, HVAC systems, and plastic machinery, it is CE certified, fully resin-sealed for 3500V high isolation, and engineered for plug-and-play safety and performance.

  • Brand:

    PIDMaxWell
  • Item no.:

    MS-3DA48
  • Payment:

    T.T, Credit Card, Paypal etc, to be negotiate
  • Market price:

    $82
  • Price:

    $80
  • Product origin:

    Made in China
  • Color:

    black
  • Min order:

    10
  • Lead Time:

    14 days after payment confirmed

Key Features

  • 80A High Current Capacity – Built for heavy-duty three-phase power control.
  • Pre-Assembled Cooling Kit – Includes heavy-duty aluminum heatsink and high-velocity fan for optimal thermal management.
  • Back-to-Back SCR Technology – Superior surge resistance and ultra-low voltage drop (60A+ models).
  • Zero-Crossing Switching – Minimizes inrush current and EMI interference.
  • Built-in RC Snubber Circuit – Enhanced transient voltage protection for all models.
  • Fully Resin-Sealed – 3500V dielectric strength for maximum isolation and harsh environment resistance.
  • Clear Terminal Safety Cover – Prevents accidental contact and improves operational safety.
  •  

 

Click on below link to download catalog, user manual for MS-3DA48

Ideal for High-Power Industrial Control (Resistive & Inductive Loads):

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