Technical Specifications

FAQ

Q1: What is the main function of the Allen-Bradley 80026-518-01-R DC switching power supply?

The 80026-518-01-R is a DC switching power supply designed to provide multiple DC voltage outputs from a 56 VDC input. Its multi-output configuration supports electronic circuits that require different supply voltages within an industrial control system. Before integrating the unit into existing equipment, verify that its output ratings and connector arrangement match the original system requirements.

Q2: What input voltage does the 80026-518-01-R require?

The specified input voltage is 56 VDC. The input source must provide the correct DC voltage and sufficient current for the connected loads. Applying an incorrect voltage or reversing the input polarity, where polarity-sensitive connections are used, can damage the power supply or connected equipment. Always check the terminal markings and equipment wiring diagram before energizing the unit.

Q3: What output voltages are available on this power supply?

The 80026-518-01-R is listed with 5 VDC, 15 VDC, and 24 VDC outputs. These voltage levels can support different electronic circuits in compatible industrial equipment. The required voltage should be matched to the connected device’s specifications. Do not assume that every output terminal has the same current capacity or that the listed ratings can be combined without restrictions.

Q4: What is the maximum output current of the 80026-518-01-R?

The published output ratings are 5 A, 2 A, and 1 A for the listed 5 VDC, 15 VDC, and 24 VDC outputs, respectively. The allowable load depends on the output configuration and the manufacturer’s specifications. When designing or checking a replacement, consider the current drawn by each connected circuit and avoid exceeding the applicable output rating. Confirm the terminal-to-output assignments from the original documentation.

Q5: How can unstable output voltage be diagnosed?

First, check whether the input remains within the specified range under load. Then inspect the wiring, terminal connections, and connected devices for loose contacts, short circuits, or excessive current demand. Using an appropriate multimeter, a qualified technician can measure the output voltages and compare them with the required values. If the input is stable but one or more outputs remain outside specification, the power supply may require further testing or replacement.

Q6: What can cause the power supply to overheat or shut down?

Possible causes include excessive output load, inadequate cabinet ventilation, high ambient temperature, loose electrical connections, or an internal component fault. Start by checking the connected loads and ensuring that the unit is installed according to the equipment manufacturer’s requirements. If overheating or shutdown continues after external causes have been addressed, remove the unit from service and arrange an inspection by qualified personnel rather than continuing to operate it under abnormal conditions.

Q7: Can the 80026-518-01-R be replaced by another DC switching power supply?

Replacement is possible only if the alternative meets the original system’s electrical and mechanical requirements. Compare the input voltage, all output voltages, current ratings, output isolation requirements, connector pinout, mounting arrangement, and any system-specific compatibility requirements. A supply with similar output voltages may still be unsuitable if its electrical characteristics or connection layout differ. For legacy equipment, verify the replacement against the original part number and wiring documentation.

Q8: What should be checked when purchasing the 80026-518-01-R?

Confirm the complete part number, 80026-518-01-R, and check the product label against the equipment documentation. Because the model is listed as discontinued, availability may depend on remaining inventory or refurbished stock. Ask the supplier to confirm the unit’s condition, whether it has been tested, and what warranty applies. Before installation, inspect the housing and terminals, verify the electrical ratings, and ensure that the unit is compatible with the intended equipment.