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        A6740-10

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        Emerson A6740-10 is the 10TE, 16-channel output relay module for configured AMS 6500 protection racks.
        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.
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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.
        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 A6740-10

        • Manufacturer:
          Emerson
        • Part Number:
          A6740-10
        • Product Family:
          Epro
        • Product Type:
          16-Channel Output Relay Module
        • Stock:
          1
        • Relay channels:
          16
        • Logic inputs:
          Up to 60
        • Logic expressions:
          30
        • Mechanical format:
          3U, 10TE
        • Rack family:
          AMS 6500 (10TE format)
        • Contact form:
          SPDT; normally open/closed selectable
        • Relay energization:
          Normally energized or non-energized selectable
        • Contact load:
          48 V, 1 A
        • Control voltage:
          13–32 V DC
        • Time delay:
          0–30 s
        • Logic operations:
          Off, AND, OR, 2-out-of-3, AND-AND-OR
        • Operating temperature:
          0 to +65 °C
        • Weight:
          0.32 kg
        • Estimated shipping dimensions:
          5.446 x 12.84 x 16 cm
        • Tariff Code:
          Please confirm the destination before shipping
        • Country of origin:
          Germany
        • 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 Logic Inputs Relay Outputs Rack Fit Applications

        Features:

        • Sixteen relay channels provide hardwired protection-system outputs.
        • Thirty logic expressions can evaluate as many as sixty input states.
        • The -10 version uses a documented 3U, 10TE format.
        The module converts configured rack logic into isolated field-contact actions.

        Voting expressions and relay assignments belong to the commissioned protection strategy.

        Exact replacement review should cover rack width, contact wiring and saved logic.

        Apter Power supports Emerson A6740-10 16-Channel Output Relay Module sourcing with quotations, technical documents and relay-logic matching.
        Emerson A6740-10 16-Channel Output Relay Module 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.
        • Up to sixty logical states can be assigned to the module.
        • Thirty expressions define voting and condition relationships.
        • Each expression can combine the states required by the machine-protection strategy.
        • Input assignments should be transferred from the commissioned logic record.
        • Sixteen relays switch external alarm, interlock or shutdown circuits.
        • Energized and de-energized behavior follows the installed application.
        • Field voltage and contact loading must remain within the documented wiring design.
        • The relay schedule should identify the receiving circuit for every channel.
        • A6740-10 occupies the documented 10TE rack width.
        • A wider related version should not be treated as the same mechanical item.
        • Slot, connector and neighboring-module clearance should be compared before replacement.
        • The module label and rack drawing provide the strongest exact-fit evidence.
        • Hardwired machinery alarm and trip output handling.
        • Configured voting for rotating-equipment protection.
        • External annunciation and shutdown-circuit interfacing.
        • AMS 6500 relay-module maintenance with preserved logic and wiring assignments.
        Description
        Where a protection rack must hand a trip decision to plant wiring, A6740-10 provides sixteen configurable SPDT contacts in the 10TE format used with AMS 6500 systems.

        Clear, alert and danger states can feed the logic expressions in A6740-10; assigned relays then operate with the configured Boolean rule and delay, rather than measuring vibration themselves.

        Apter Power can quote A6740-10 against the rack slot and review the existing cause-and-effect matrix, contact assignments and receiving-circuit load for a correctly scoped spare.
        Alternative Names
        A674010 A6740 10 Emerson A6740-10 Epro A6740-10 A6740-10 relay module A6740 10 output relay A674O-10 A6740-1O
        Technical notes
        A6740-10 is the 10TE relay-module version, so rack space, connector arrangement and the commissioned logic matrix all matter. Apter Power can review the relay schedule and cause-and-effect record before quotation, helping protect external trip circuits from a mechanically or logically mismatched spare.
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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
        My rack takes a 10TE A6740-10. Can I use the wider A6740 instead?
        The wider A6740 is not a direct swap: Emerson assigns A6740-10 to 10TE AMS 6500 racks and A6740 to 12TE IMR6000 racks.
        If I replace A6740-10, will its former trip logic return automatically?
        Relay behavior depends on the approved input states, expressions and assignments; installing hardware alone does not restore the former trip logic.
        What changes if my A6740-10 circuit uses a normally closed contact?
        The receiving circuit sees the opposite contact state; the NO/NC wiring and normally energized setting must match the approved fail-state.
        Can I add another monitor alarm to A6740-10 without editing the existing expression?
        Only if the commissioned expression already includes that alarm state; an unassigned condition will not change the relay decision.
        An input is active but the plant alarm stays off. What should I compare on A6740-10?
        An active input may not reach the plant alarm if the Boolean result, output assignment, relay contact or field circuit differs from the commissioned schedule. Comparing those stages locates the break.
        What should I send with an A6740-10 request for a shutdown-circuit spare?
        The full module label, rack slot, logic file, relay schedule and receiving-circuit load help Apter Power quote the correct shutdown-interface spare.

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