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- DCF506-0520-51-0000000
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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.
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.
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.
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.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for DCF506-0520-51-0000000
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Product ModelDCF506-0520-51-0000000
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Product ParametersOVERVOLTAGE PROTECTION
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Tariff Code8537101190
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Country of originSWEDEN
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size13.5x33.5x36.5cm
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ManufacturerABB
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Weight8.2 kg
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Product IDDCF1127119R0001
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Converter Current Range250–520 A
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Voltage Range400–500 V
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Protection TypeActive free-wheeling overvoltage suppression
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Response Time< 5 ms
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DC Current Release Threshold< 0.5 A
Description
The ABB DCF506-0520-51 provides essential protection for power components against inadmissibly high voltages that can occur during field excitation operations, ensuring the longevity and reliability of motor field supply converters rated from 200 A to 520 A. As a mandatory accessory for large field supply configurations, the ABB DCF506-0520-51 safeguards the thyristor power stages and associated field winding equipment from destructive voltage transients.
The ABB DCF506-0520-51 operates through an active protection mechanism that monitors the field circuit voltage and, upon detection of an overvoltage condition, immediately activates a free-wheeling circuit between the F+ and F- output terminals. The ABB DCF506-0520-51 achieves this protection through a dual anti-parallel thyristor configuration that provides a safe energy dissipation path, preventing voltage spikes from reaching levels that could damage the field exciter's semiconductor devices or the motor field winding. This fast-acting protection mechanism ensures that overvoltage events are suppressed before they can propagate through the power circuit and cause catastrophic failures.
The ABB DCF506-0520-51 operates through an active protection mechanism that monitors the field circuit voltage and, upon detection of an overvoltage condition, immediately activates a free-wheeling circuit between the F+ and F- output terminals. The ABB DCF506-0520-51 achieves this protection through a dual anti-parallel thyristor configuration that provides a safe energy dissipation path, preventing voltage spikes from reaching levels that could damage the field exciter's semiconductor devices or the motor field winding. This fast-acting protection mechanism ensures that overvoltage events are suppressed before they can propagate through the power circuit and cause catastrophic failures.
Alternative Names
DCF506-0520-51
DCF5060520510000000
DCF5O6-O52O-51
DCF5O6O52O51
DCF506 0520 51 0000000
DCF506 0520 5I
Information
Overview
Manuals
Engineering Considerations
Product Applications
Electrical Power & Earthing Requirements
Features:
- Active Overvoltage Protection for Large Field Exciters
- Dual Anti-Parallel Thyristor Free-Wheeling Circuit
- Relay Output for Free-Wheeling Status Indication
- Wide Current Range Coverage (200 A – 520 A)
The DCF506-0520-51 ABB OVERVOLTAGE PROTECTION may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB DCF506-0520-51 OVERVOLTAGE PROTECTION Manuals, Datasheets, Drivers, 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.
The internal architecture of the ABB DCF506-0520-51 comprises a trigger unit—either the SDCS-FEP-1 for 400V/500V systems or the SDCS-FEP-2 for 690V systems—combined with the free-wheeling thyristor assembly. The trigger unit within the ABB DCF506-0520-51 continuously monitors the field circuit voltage and generates precise firing pulses to the thyristors when the voltage exceeds safe operational thresholds. This integrated design eliminates the need for external trigger circuitry and ensures coordinated, deterministic response times that are critical for protecting sensitive power electronic components in high-current field excitation applications.
- Metals and Mining:Prevents motor field failures in crushers & conveyors
- Material Handling:Torque control & spike prevention for cranes/hoists
- Pulp, Paper, and Plastics:Smooth speed control for winders & extruders
- Chemical and Electrolysis Plants:Protects from power supply shifts in processing
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Dedicated Disconnection Device: The end-user application must incorporate an independent circuit breaker or dedicated safety fuses upstream to provide complete galvanic isolation during maintenance.
High-Frequency Grounding: Connect the module independently to the protective earth (PE) busbar. Use heavy-gauge, low-impedance grounding conductors and execute a 360° high-frequency grounding terminal sleeve for any screened power cable entries to minimize Electromagnetic Compatibility (EMC) noise emission.
Terminal Phasing Check: Double-check the absolute polarity of all DC bus attachments (such as the standard C+ and D- terminal paths) prior to applying system test voltages.
Technical notes
The ABB DCF506-0520-51 operates through an active protection mechanism that monitors the field circuit voltage and, upon detection of an overvoltage condition, immediately activates a free-wheeling circuit between the F+ and F- output terminals. The ABB DCF506-0520-51 achieves this protection through a dual anti-parallel thyristor configuration that provides a safe energy dissipation path, preventing voltage spikes from reaching levels that could damage the field exciter's semiconductor devices or the motor field winding.
FAQs
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What is the DCF506-0520-51
+The ABB DCF506-0520-51 (Product ID: DCF1127119R0001) is an overvoltage protection module designed specifically for ABB’s high-power DC drive systems. -
What is the primary function of the DCF506-0520-51?
+It functions as a protection module against dangerous overvoltage events and voltage spikes on the AC supply side of the DC drive system. -
Which drive units is it compatible with?
+It is tailored for industrial DC drives, commonly pairing with the DCS800 and DCS880 series power converter modules. It handles current ranges between 250 A and 520 A. -
Which DC drive systems are compatible with this module?
+The DCF506-0520-51 is rated for currents between 250 A and 520 A and is typically paired with standard ABB industrial DC drives (such as the DCS800 and DCS880 modules). It is built for 3-phase supply voltages in the 400 V to 500 V range
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