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        • Lifecycle Status

          Obsolete / Discontinued by OEM
          Apter Power supplies robust ABB automation distribution hardware, offering dependable solutions to maximize uptime and protect critical industrial control system architectures.

        CP-A RU 1SVR427071R0000

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        ABB CP-A RU 1SVR427071R0000 is a redundancy unit that decouples two parallel power supplies and automatically maintains power to critical loads when one supply fails.
        In Stock
        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.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        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.

        Technical specifications for CP-A RU 1SVR427071R0000

        • Manufacturer:
          ABB
        • Part Number:
          CP-A RU 1SVR427071R0000
        • Product Family:
          ABB SattControl
        • Product Type:
          Redundancy Unit
        • Stock:
          1
        • Rated input voltage Uin:
          24 V DC
        • Input voltage range per channel:
          10-28 V DC
        • Rated input current Iin per channel:
          1-20 A
        • Maximum input current per channel:
          30 A for 300 s
        • Transient overvoltage protection:
          yes
        • Rated output voltage Uout:
          24 V DC
        • Voltage drop:
          typ. 0.6 V, max. 0.9 V
        • Rated output current Iout:
          1-40 A
        • Output ratings per channel:
          10-28 V DC / 40 A
        • Derating:
          2.5% per Kelvin from +60°C to +70°C
        • Peak output current:
          60 A for 300 s
        • Resistance to reverse feed:
          < 40 V
        • Minimum distance to other units:
          10 mm / 50 mm (0.39 in / 1.97 in)
        • Degree of protection:
          IP20 / IP20
        • Material of housing:
          aluminium / zinc-coated sheet steel
        • Protection class:
          III
        • Mounting:
          DIN rail (IEC/EN 60715)
        • Mounting position:
          horizontal
        • Wire size:
          fine-strand with wire end ferrule: 2.5-10 mm2 (14-8 AWG)
        • Stripping length:
          12 mm (0.47 in)
        • Tightening torque:
          1.2-1.5 Nm
        • Operation temperature:
          -25...+70 °C
        • Storage temperature:
          -40...+85 °C
        • Damp heat (IEC/EN 60068-2-3):
          93 % at 40 °C, no condensation
        • Climatic class (IEC/EN 60721):
          3K3
        • Insulation voltage:
          500 V AC (routine test)
        • Weight:
          1.073 kg
        • Estimated shipping dimensions:
          13.5x14.2x6.9cm
        • Tariff Code:
          85044090
        • 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.

        More Information

        Overview Manuals Specifications Application Scenarios Performance Monitoring

        Features:

        • Provides true redundancy by completely decoupling two parallel power supplies.
        • Supports two 20 A inputs, up to 40 A rated output, and 60 A peak output.
        • Offers DIN rail mounting, transient protection, and optional undervoltage monitoring.
        ABB CP-A RU 1SVR427071R0000 improves power availability in control systems where interruption of the DC supply can stop important equipment or processes. By placing two power supplies in a redundant arrangement, the unit allows a secondary source to take over after loss of the primary supply. Such an arrangement is useful in industrial control panels, automation systems, and critical DC distribution circuits. The decoupling function also isolates a failed source from the healthy supply.

        For applications where power condition visibility is required, ABB CP-A RU 1SVR427071R0000 can work together with CP-A CM. Separate monitoring of both input channels helps operators detect undervoltage conditions before a complete loss of load power occurs. Relay outputs can be integrated into alarm or control circuits, while LEDs indicate the state of the two inputs and output. A monitored redundant architecture can therefore provide both supply continuity and clearer fault indication.

        ABB CP-A RU 1SVR427071R0000 also supports straightforward cabinet integration through standard DIN rail mounting and screw terminal wiring. Horizontal installation and specified spacing maintain sufficient convection during operation, especially under higher current loads. The wide operating temperature range and climatic classification support use in varied industrial environments. Electrical protection, reverse-feed resistance, and robust housing materials further support reliable service in redundant 24 V DC power systems.

        The CP-A RU 1SVR427071R0000 ABB Redundancy Unit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        ABB CP-A RU 1SVR427071R0000 Redundancy 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.
        ABB CP-A RU 1SVR427071R0000 Redundancy Unit Specs

        General

        • Manufacturer ABB
        • Model CP-A RU 1SVR427071R0000
        • Condition New Original ready stock
        • Product Family CP-A CM 1SVR427075R0000
        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.
        • Critical Control: Provides redundant decoupling for DC power supplies used in DCS and PLC control systems.
        • Instrument Power Supply: Supports redundant DC power arrangements for field sensors and transmitters.
        • Control Panels: Supports redundant 24 V DC power arrangements in industrial control cabinets.
        • Industrial Automation: Supports redundant DC supply circuits in industrial automation systems.
        • Current Capacity: Supports two input channels rated up to 20 A each and one combined output rated up to 40 A.
        • Decoupling Protection: Built-in two high-performance diodes achieve complete isolation between the two input power supplies.
        • Voltage Drop: Typically 0.6 V, maximum 0.9 V.
        • Wide Input Voltage Range: Compatible with 10-40 V DC power supply systems with redundant decoupling.
        • Status Indication: When the optional CP-A CM is installed, LEDs indicate the status of both CP-A RU input channels.
        • Relay Output: The optional CP-A CM provides one relay output for each monitored input channel.
        • Fault Warning: When an input voltage falls below the threshold set on the optional CP-A CM, the corresponding relay de-energizes for external fault signaling.
        • Input Monitoring: The optional CP-A CM monitors both CP-A RU input voltages with separately adjustable thresholds from 14 to 28 V.
        Description
        ABB CP-A RU 1SVR427071R0000 provides true redundant power operation by completely decoupling two parallel-connected CP power supplies. Two inputs accept up to 20 A per channel, while the combined output supports up to 40 A. Integrated decoupling diodes prevent a failed supply from affecting the remaining source, allowing the redundant power supply to continue feeding connected loads after an initial fault.

        In normal operation, ABB CP-A RU 1SVR427071R0000 works with both power supplies connected in parallel and automatically transfers the load when one supply circuit fails because of events such as incorrect wiring, a blown fuse, or power supply failure. Each power supply should therefore be sized for the total current required by all connected loads. The unit supports a rated 24 V DC input, a 10 to 40 V DC input range per channel, and a typical voltage drop of 0.6 V with a maximum of 0.9 V.

        ABB CP-A RU 1SVR427071R0000 can handle a rated output current of 1 to 40 A and a peak output current of 60 A for up to 300 seconds. Maximum input current per channel reaches 30 A for 300 seconds, while transient overvoltage protection and reverse-feed resistance below 40 V provide additional electrical protection. Above +60°C, the output current must be derated by 2.5 percent per Kelvin up to the maximum operating temperature of +70°C.

        For condition monitoring, ABB CP-A RU 1SVR427071R0000 can be combined with the optional CP-A CM control module. CP-A CM monitors both input voltages, provides LED indication, and offers separately adjustable relay thresholds from 14 to 28 V for each channel. When an input falls below the selected threshold, the corresponding relay de-energizes, allowing a power supply failure, blown fuse, or undervoltage condition to generate a fault signal.

        ABB CP-A RU 1SVR427071R0000 mounts horizontally on a DIN rail according to IEC/EN 60715 and requires minimum spacing of 10 mm horizontally and 50 mm vertically for sufficient convection. The unit operates from -25°C to +70°C and can be stored from -40°C to +85°C. IP20 protection, protection class III, aluminium and zinc-coated sheet steel housing materials, 93 percent humidity resistance at 40°C without condensation, climatic class 3K3, and a 500 V AC routine insulation test support industrial cabinet installation.
        Alternative Names
        CP-A RU 1SVR427071R0000 CP-A RU ISVR42707IR0000 CPA RU 1SVR427O71ROOOO CP-A CM 1SVR427075R0000 HIEE300043R1 ALA334 A01 SDCS-PIN-11 3ADT306100R0001 3EHE300692R0001 LAA424 C01
        Technical notes
        The ABB CP-A RU 1SVR427071R0000 accepts an input voltage range of 10-40 V DC and provides 100 percent decoupling between two parallel-connected power supplies. Two input channels rated up to 20 A each feed a combined output rated up to 40 A.
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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
        What does ABB CP-A RU 1SVR427071R0000 do in a redundant power system?
        ABB CP-A RU 1SVR427071R0000 decouples two parallel power supplies and allows one source to continue supplying the load when the other source fails.
        Can ABB CP-A RU 1SVR427071R0000 prevent one failed power supply from affecting the second supply?
        Yes. ABB CP-A RU 1SVR427071R0000 provides 100 percent decoupling between two parallel-connected power supplies, preventing the failed source from shorting or compromising the redundant supply output.
        Does ABB CP-A RU 1SVR427071R0000 support input voltage monitoring?
        Input monitoring is available when ABB CP-A RU 1SVR427071R0000 is used with the optional CP-A CM control module. CP-A CM monitors both input channels and provides adjustable undervoltage thresholds from 14 to 28 V.
        How should ABB CP-A RU 1SVR427071R0000 be mounted?
        ABB CP-A RU 1SVR427071R0000 mounts horizontally on a DIN rail according to IEC/EN 60715, with the input terminals positioned at the top. At least 10 mm horizontal and 50 mm vertical spacing should be maintained around neighboring modules.

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