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        • Lifecycle status

          Active / Available from OEM
          Apter Power can help source IC655MDL525 for maintenance of grouped Series Five AC input circuits.

        IC655MDL525

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Two separately supplied eight-circuit banks let IC655MDL525 monitor sixteen 115/230 VAC field inputs within a General Electric Series Five installation.
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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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        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.
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        Technical specifications for IC655MDL525

        • Manufacturer:
          General Electric
        • Part Number:
          IC655MDL525
        • Product Family:
          GE Intelligent Platforms
        • Product Type:
          115/230 VAC 16-Circuit Input Module
        • Stock:
          1
        • Product family:
          Series Five PLC
        • Input type:
          AC
        • Input points:
          16
        • Circuit grouping:
          Two groups of eight
        • Operating voltage:
          80–265 VAC
        • Frequency:
          48–63 Hz
        • Input current:
          8.4 mA at 100 VAC; 18 mA at 230 VAC
        • ON/OFF levels:
          80 VAC ON; 38 VAC OFF
        • Response time:
          5–30 ms ON; 10–50 ms OFF
        • Weight:
          1.43 lbs (0.65 kg)
        • Estimated shipping dimensions:
          3.8 × 25.4 × 12.7 cm
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • 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 Dual-Source Banks AC Thresholds Indicator Checks Start-Up Sequence

        Features:

        • Sixteen AC inputs are arranged as two separately supplied groups of eight points.
        • Each group has its own neutral and may share or use a separate 115/230 VAC source.
        • Front indicators show circuit state and can identify the programmed starting I/O address.
        Two independent groups make it possible to keep different machine sections or voltage sources separated at the module while using one Series Five slot.

        The removable terminal assembly preserves labeled conductors during exchange, and group-level neutrals give technicians a clear boundary for voltage checks.

        Commissioning can proceed group by group: confirm the source and neutral first, then exercise each point and compare the LED indication with the controller input table.

        Apter Power can assist with quotation and sourcing requests for General Electric IC655MDL525 115/230 VAC 16-Circuit Input Module.
        General Electric IC655MDL525 115/230 VAC 16-Circuit Input Module Manuals, Datasheets, Links 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.

        Organizing the Two Eight-Point Groups

        • Group boundary: Treat A and B as separate eight-circuit sections during labeling and testing.
        • Neutral reference: Match every input to the neutral assigned to its own group.
        • Source choice: Use one common supply only when the installation design permits both groups to share it.
        • Fault isolation: If one group is inactive, verify its source and neutral before disturbing the other eight points.

        Applying 115 or 230 VAC Field Power

        • Voltage check: Confirm the actual source is within the 80–265 VAC operating range before connection.
        • Frequency: Use a 48–63 Hz supply and keep source identification visible at the terminal block.
        • Separate feeds: When groups use different sources, isolate and prove each feed independently.
        • Safe return: Restore the neutral and source together so an apparently off point is not left with an unexpected reference.

        Tracing an AC Input That Does Not Change State

        • At the device: Confirm the field contact actually switches the assigned AC source.
        • At the module: Measure between the selected input and its group neutral rather than another group’s neutral.
        • At the indicator: Compare the point LED with the measured voltage to separate field wiring from rack mapping.
        • At the controller: Check the starting I/O address when the LED changes but the programmed point does not.

        Returning the Input Module to Service

        • Identity: Match the complete catalog number, slot and removable terminal keying before installation.
        • Group test: Energize one eight-point group at a time and verify its neutral reference.
        • Point proof: Operate every connected device and record agreement between field state, LED and PLC input.
        • Functional release: Restore dependent machine functions only after both groups pass the commissioning record.
        Description
        General Electric IC655MDL525 is a Series Five 16-circuit AC input module for compatible 115 or 230 VAC field signals. The points are divided into two groups of eight, and each group receives its own line connection.

        Separate group feeds allow the two banks to follow different cabinet circuits when the permitted voltage arrangement is observed. A complete bank losing indication therefore points first to its shared source path, while an isolated point failure remains associated with one device or conductor.

        The module converts line-voltage field states into controller input information and provides local point indication for comparison at the rack. Group identity, actual source voltage and starting address are the key relationships that connect the AC wiring to the program.
        Alternative Names
        IC 655 MDL 525 IC655-MDL525 IC655MDL-525 GE IC655MDL525 GE Fanuc IC655MDL525 Series Five IC655MDL525 IC655MD1525 IC655MDLS25
        Technical notes
        Separate all 115/230 VAC sources before removing the terminal block. Keep each eight-point group matched to its own neutral and verify the configured starting address before restoring field power.
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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
        Can both IC655MDL525 input groups use one AC source?
        With IC655MDL525 in service, yes. The two groups may share one suitable source, or each group may use a separate source; each group must remain connected to its own neutral.
        During IC655MDL525 troubleshooting, what should be checked when one eight-point group is inactive?
        For an installed IC655MDL525, start with the group supply and neutral, then measure the affected terminal, inspect the removable block and compare the point LED with the programmed address.
        Before servicing IC655MDL525, how can the front indicators help during commissioning?
        Before returning IC655MDL525 to service, the sixteen LEDs show the detected circuit states and, when requested through programming, identify the module’s starting I/O address.
        Which AC circuit records are needed before removing IC655MDL525?
        For IC655MDL525, capture the rack slot, starting address, group letter, terminal number, neutral connection and applied voltage for all sixteen field circuits.
        For a IC655MDL525 installation, can 115 VAC and 230 VAC groups be used on the same module?
        When checking IC655MDL525, they can be supplied separately when the installation design permits it. Confirm the voltage assigned to each group and never interchange the group neutrals.
        For IC655MDL525, what does the removable terminal block preserve during exchange?
        On IC655MDL525, it keeps the labeled field conductors organized while the electronics are changed, reducing the risk of moving a wire to the wrong point or neutral.
        On IC655MDL525, how should the inputs be proven after reconnection?
        During IC655MDL525 troubleshooting, energize one group at a time, exercise every field device, compare its LED and controller state, then verify the connected function before normal operation resumes.

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