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DCF503A0050-00000

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The ABB DCF503A0050-00000 is a 50A PWM field exciter with 500VAC/420VDC dual input, designed for precise DC motor excitation in industrial systems.
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Technical specifications for DCF503A0050-00000

  • Manufacturer:
    ABB
  • Part Number:
    DCF503A0050-00000
  • Product Family:
    ABB Drives
  • Input Voltage:
    500 VAC or 420 VDC
  • Current Rating:
    50 A
  • Frequency Compatibility:
    50/60 Hz
  • Output Control Mode:
    Pulse Width Modulation (PWM)
  • Operating Temperature Range:
    -20°C to +70°C
  • Protection Rating:
    IP20
  • Weight:
    0.35 kg
  • Estimated shipping dimensions:
    33.7x11.7x8.5cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Sweden
  • 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.
Description
The ABB DCF503A0050-00000 is a high-performance field exciter engineered to deliver precise and reliable excitation for DC motors and industrial converter systems, catering to demanding applications where stable field current regulation is critical.  Its core functionality revolves around providing controlled power to the motor’s field winding, leveraging Pulse Width Modulation (PWM) technology to adjust the output signal with exceptional accuracy—this ensures optimal motor efficiency, responsive speed control, and consistent torque performance across varying load profiles.  Designed with versatility in mind, the exciter supports dual input power options (500VAC or 420VDC) and is compatible with 50/60Hz AC frequencies, making it adaptable to global industrial power systems and eliminating the need for additional rectification hardware in DC-powered setups.

With a 50A current rating, the DCF503A0050-00000 is well-suited for medium-power DC motor applications, ranging from manufacturing machinery and conveyors to mining equipment and power generation auxiliaries.  Its PWM output control mode enables fine-tuning of excitation levels, allowing seamless integration with motor control systems (including ABB’s DCS series converters) to achieve synchronized operation between the armature and field circuits.  The exciter features an IP20 protection rating, providing defense against solid objects larger than 12mm, which makes it ideal for enclosed cabinet or panel installation in industrial environments—aligning with standard safety practices for high-voltage electrical components.

Built to withstand harsh industrial conditions, the DCF503A0050-00000 operates reliably within a temperature range of -20°C to +70°C, ensuring performance stability in extreme cold or heat.  It complies with global electromagnetic compatibility (EMC) and safety standards, incorporating inherent protection mechanisms to mitigate electrical faults and support system-level overvoltage/overcurrent safeguards.  Installation is straightforward, following ABB’s industrial mounting guidelines, and the exciter’s robust design minimizes maintenance requirements, contributing to long-term operational reliability and reduced downtime for critical industrial processes.
Alternative Names
DCF5O3AOO5O-OOOOO DCF503A0050
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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.
What is the input voltage range for the DCF503A0050-00000?
The module accepts 500 VAC or 420 VDC input.
What is the rated current of this field exciter?
The rated current is 50 A.
What frequency does the exciter support?
It is compatible with both 50 Hz and 60 Hz.
What type of output control does this exciter use?
It uses Pulse Width Modulation (PWM) for output control.
What is the operating temperature range?
The module operates between –20°C and +70°C.
What protection rating does the module have?
It has an IP20 protection rating.

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