Company Overview: Drives, Controllers and Custom Electronics, Designed and Built Together

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    Company overview · Since 1972 · Zaragoza, Spain

    Engineering + Manufacturing, Together.

    So your products stay ahead.

    We co-design and manufacture the drives, controllers and custom electronics at the heart of your product.

    50+years of custom electronics
    30+export countries
    ISO9001 certified
    10+years client partnerships

    Electrónica KELD S.L. is an electronics design and manufacturing company based in Zaragoza, Spain, founded in 1972. We co-design and manufacture variable speed drives, HVAC and temperature controllers, and custom electronics for manufacturers of electric motors, pumps and compressors, fans and ventilation, HVAC and climate equipment, refrigeration and industrial equipment. Design, industrialization and production happen with one partner, in one facility, under an ISO 9001 quality system.

    What we build

    Three ways to work with us: start from one of our product platforms and adapt it, or bring your own specification and we take it to series production.

    Variable Speed Drives

    Purpose-built for your motor and load profile.

    KMD Series · 1–7.5 kW · IP66
    See the KMD Series motor drives →

    HVAC & Temperature Control

    Controllers built around your equipment.

    KTS Series · 8 models
    See the KTS Series controllers →

    Custom Electronics

    From your specification to series production.

    Your design · your IP
    Discuss your specification →

    Why manufacturers choose KELD

    What changes when engineering and manufacturing sit with the same partner.

    Co-engineeringShorter qualification, less ramp-up risk. Manufacturing and test constraints are considered while the design is still easy to change.

    One partner, one facilityDesign to production, no handoffs. The team that designs your electronics also industrializes and builds them.

    Flexible production200 or 20,000 units, same quality. The same process applies at both ends of the volume range.

    Your IP stays yoursNDA before any technical exchange. Custom designs remain your property.

    Lifecycle continuityObsolescence and regulations managed for you, for as long as your product stays on the market.

    How we work

    Five stages, one partner, from first specification to long-term support.

    1. Co-Design

      DFM, DFT and cost

    2. Industrialization

      APQP · CE · UL

    3. Production

      All in-house

    4. Traceability

      Every unit logged

    5. Lifecycle

      Long-term support

    Industries we serve

    Electric motors
    Fans & ventilation
    Pumps & compressors
    HVAC & climate
    Refrigeration
    Industrial equipment

    Quality you can audit

    • ISO 9001 quality system
    • APQP-informed product introduction
    • CE, UL, RoHS compliance support
    • Open-door supplier audits

    KELD at a glance

    The key facts for supplier evaluation, in one place.

    CompanyElectrónica KELD S.L.
    Founded1972
    LocationPolígono Empresarium, C/Lentisco, 15, 50720 La Cartuja Baja, Zaragoza, Spain
    What we doCo-design and manufacturing of drives, controllers and custom electronics
    Product platformsKMD Series variable speed drives (1–7.5 kW, IP66) · KTS Series temperature controllers (8 models)
    Production volumesFrom 200 to 20,000 units
    QualityISO 9001 certified · APQP-informed product introduction · every unit logged
    Compliance supportCE, UL, RoHS
    Export30+ countries
    Contact · +34 976 42 90 99

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