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  • 40 amp DIN mount solid-state relay heat sink assembly
  • Utilizes 1x Celduc SO967940 90 amp solid-state relay
  • Zero-crossing 24-600Vac / 40A output @ 40C
  • 18-280Vac/dc input / control
  • Internal output over voltage protection
  • IP20 touch-safe housing with removable flaps over the input and output terminals

  • Green LED input status indicator

  • Compact, thermally efficient heat sink to maximize overall product life expectancy
  • Direct-bond copper (DBC) substrate for superior thermal performance
  • Epoxy free design eliminates stress on internal components due to epoxy expansion and contraction
  • Direct-power lead-frame design reduces solder joints and enhances reliability
  • EMC compliant, level 3
  • Agency approvals; UL, CSA, VDE/TUV, and CE

HBC-U90HAA 40 Amp / 24-600Vac, AC/DC Input Solid State Relay Power Controller

  • Additional Information:

    Discount Codes:

    HBC500 - Enter promo code on checkout to receive a 5% discount on orders ≥$500.

    HBC1K -  Enter promo code on checkout to receive a 10% discount on orders ≥$1,000. 


    Please submit a quote request form for volume pricing ≥50 pieces.


    In Stock - product normally ships within 24 hours


    Shipping: All website orders >$100 are eligible for free UPS Ground shipping within the United States


    International Shipping: HBControls ships internationally to all non-sanctioned countries


    Condition: New / Unused


    Warranty: Additional information is available on the Policies page of our website 


    Product Datasheet: HBControls UA Series Power Controllers

  • Product Description:

    The HBControls HBC-U90HAA power controller is a ready-to-use Celduc SO967940 90 amp solid state relay pre-assembled onto a compact, thermally efficient DIN mount “A” series heat sink. The HBC-U90HAA power controller assembly is fully derated to switch AC loads up-to 40 amps at line voltages between 24Vac and 510Vac in a 40°C ambient temperature. This eliminates the need to perform any thermal calculations or heat sink selection. Furthermore, since the SO967940 is already assembled onto a specific, custom-designed heat sink, mounting torque and the application of thermal compound are no longer concerns.


    The HBC-U90HAA / SO967940 solid state relay can accept control (input) signals between 20Vac/dc and 265Vac/dc. When an input signal is applied, the zero-crossing output circuit only conducts load current when the AC mains passes through the zero-crossing point of the sine wave. This minimizes inrush currents and the level of conducted emissions coupled onto the AC mains by the solid state relay.


    A green LED provides visual indication when the input signal is applied. 


    The SO967940 utilizes rugged back-to-back (inverse parallel) SCRs to switch power to AC loads. This significantly reduces the total power dissipation of the SO967940 in comparison to similar triac output solid state relays, in addition to enhancing the relay’s ability to withstand heavy surge currents. This makes the HBC-U90HAA ideally suited for resistive heating and similar applications. The typical MTBF (mean time before failure) of the HBC-U90HAA / SO967940 is >7 million hours.


    Features and benefits of the SO967940 & HBC-U90HAA solid state relay power controller include;

    • Direct bond copper (DBC) substrate for superior thermal performance
    • Epoxy-free design to eliminate stress caused by the expansion and contraction of epoxy during normal operation
    • Direct power lead frame design to minimize solder joints in the load-current path
    • SEMS screws and washers for improved pull-out ratings
    • Redesigned solid state relay housing with anti-rotation barriers
    • Shock & vibration resistant to IEC 600068-2-6 & IEC 600068-2-27
    • Agency approvals; cURus, CSA, VDE and CE compliant
    • EMC compliant (level 3)


    Please see the datasheet for additional options, or feel free to contact our technical team at / 800.879.7918.

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