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        • Lifecycle status

          Discontinued / Obsolete by OEM
          For 6DD1683-0CD0, Apter Power provides English manuals, model matching, and quotation support.

        6DD1683-0CD0

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        1001 reviews ｜ Need a Specific Revision?
        Siemens 6DD1683-0CD0 is a SIMADYN D SP23 power supply unit that converts a 24 V DC input into the documented internal supply rails for SIMADYN D hardware.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Technical specifications for 6DD1683-0CD0

        • Manufacturer:
          Siemens
        • Part Number:
          6DD1683-0CD0
        • Product Family:
          Siemens Simadyn
        • Product Type:
          SIMADYN D SP23 24 V DC Power Supply Unit
        • Stock:
          1
        • Input Voltage:
          20–30 V DC.
        • Input Ripple:
          Maximum 5 %.
        • Transient Limit:
          +35 V for 500 ms.
        • Input Dip:
          14.25 V for 5 ms.
        • Inrush Current:
          32 A.
        • Fuse Limit:
          Maximum 16 A.
        • I²t:
          6 A²s.
        • 5 V Output:
          5 V, 25 A.
        • Positive Rail:
          +15 V.
        • Negative Rail:
          −15 V.
        • Input Connector:
          X1.
        • Monitoring Connector:
          X2.
        • Battery Connector:
          X3.
        • Reset Connector:
          X4.
        • Cooling:
          Self-convection.
        • Insulation:
          500 VAC.
        • Weight:
          10.274 lbs (4.66 kg)
        • Estimated shipping dimensions:
          34.5 × 26.6 × 16.1 cm
        • Tariff Code:
          85044090
        • Country of origin:
          Germany
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Power Path Front Connections Voltage Supervision Passive Cooling

        Features:

        • SP23 supply unit for SIMADYN D internal power distribution
        • 24 V DC input with regulated 5 V, +15 V, and −15 V rails
        • Front monitoring points, reset access, and self-convection cooling
        In the SIMADYN D power chain, 6DD1683-0CD0 occupies the SP23 supply position that feeds the internal rails.

        The front connector arrangement separates input, monitoring, battery, and reset access so each service point has a defined location.

        Supply-status checks use the board’s test points and OK/fault indication, while the self-convection construction avoids a separate fan assembly for 6DD1683-0CD0.
        The Siemens 6DD1683-0CD0 SIMADYN D SP23 24 V DC Power Supply Unit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Siemens 6DD1683-0CD0 SIMADYN D SP23 24 V DC Power Supply Unit Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        DC-to-Rail Flow

        • Input route: 6DD1683-0CD0 receives its DC input through connector X1.
        • Rail conversion: The supply path converts the input into monitored 5 V, +15 V, and −15 V rails.
        • Input boundary: The documented input path includes ripple, transient, dip, inrush, and fuse limits.
        • Protection role: The input protection limits define the permitted operating boundary for the SP23 supply.

        Connector Roles

        • X1 input: X1 carries the 24 V input and protective-earth connections on 6DD1683-0CD0.
        • X2 monitoring: X2 provides the monitoring connection for the supply unit.
        • X3 battery: X3 is used for the battery connection.
        • X4 reset: X4 provides the reset connection and the front test points expose the supply rails.

        Rail Checking

        • Monitored rails: 6DD1683-0CD0 monitors the 5 V, +15 V, and −15 V supply rails.
        • Status indication: Green OK and red fault indicators show the supply status.
        • Test access: Front test points allow checks of the documented rail voltages.
        • Insulation boundary: The supply unit provides 500 VAC insulation between the documented circuits.

        Thermal Construction

        • Cooling method: 6DD1683-0CD0 uses self-convection cooling.
        • No forced-air path: The documented thermal arrangement relies on natural air movement through the supply unit.
        • Supply enclosure: The cooling method is part of the SP23 power-supply construction.
        • Electrical separation: The self-convection unit retains the documented insulation boundary between circuits.
        Description
        Power conversion in SIMADYN D is provided by Siemens 6DD1683-0CD0, an SP23 supply unit that accepts 24 V DC and produces regulated 5 V, +15 V, and −15 V rails.

        The permitted input window for 6DD1683-0CD0 is 20–30 V DC with maximum 5 % ripple. Its protection limits include a +35 V transient for 500 ms, a 14.25 V dip for 5 ms, 32 A inrush current, and a 16 A fuse boundary.

        At the front of 6DD1683-0CD0, X1 carries input and protective earth, X2 is used for monitoring, X3 for the battery, and X4 for reset; test points expose the three supply rails.

        Self-convection cooling, green OK/red fault indication, and 500 VAC insulation define the operating and checking conditions for 6DD1683-0CD0.
        Technical notes
        Siemens 6DD1683-0CD0 uses a 24 V DC input path with monitored 5 V, +15 V, and −15 V supply rails.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Before energising Siemens 6DD1683-0CD0, which input path and range must be verified?
        Bring 24 V DC and protective earth through X1, then confirm the 20–30 V DC input range for 6DD1683-0CD0 before power-up.
        What transient and dip limits should be checked for Siemens 6DD1683-0CD0 in a 24 V panel?
        Keep ripple within 5 % and check the +35 V/500 ms transient and 14.25 V/5 ms dip limits specified for 6DD1683-0CD0.
        Which rails can be measured when Siemens 6DD1683-0CD0 reports a supply problem?
        Use the test points on 6DD1683-0CD0 to measure the monitored 5 V, +15 V, and −15 V rails and compare the readings with the affected output path.
        How are monitoring, battery, and reset functions connected on Siemens 6DD1683-0CD0?
        Use X2 for monitoring, X3 for the battery, and X4 for reset on 6DD1683-0CD0; keep these service connections separate from the X1 input wiring.
        What panel protection values should be checked before installing Siemens 6DD1683-0CD0?
        Allow for the 32 A inrush current and the maximum 16 A fuse limit of 6DD1683-0CD0 when checking the upstream protection.
        What cooling and insulation conditions must be allowed around Siemens 6DD1683-0CD0?
        Provide the specified self-convection arrangement and preserve the 500 VAC insulation boundary for 6DD1683-0CD0 during installation checks.

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