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      A6371-10

      Trip Not Voted Backplane
      Ships by Saturday, November 7
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Emerson A6371-10 is the A6371/10 Trip Not Voted backplane for an AMS 6300 SIS overspeed protection assembly. It carries three monitor positions and provides a separate trip relay output for each channel.
      • Manufacturer part number
        A6371-10
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        19cm x 12.8cm x 7cm
      • Country of Origin
        USA

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete Emerson A6371-10 reference, label photographs and required quantity. Include the backplane label and terminal-strip photographs.

      • 1

        Confirm the offer

        Review the offered revision, condition, included items and documents against the confirmed installation.

      • 2

        Arrange dispatch

        Confirm quantity, dispatch date, lead-time start and delivery details in the quotation.

      • Match the complete marking

        Match the complete Emerson A6371-10 marking and the installed configuration. Check the /10 marking and separate Trip A, B and C circuit groups.

      • Check the offered item before ordering

        Please request clear photographs of Emerson A6371-10, including its complete label and interfaces. Ask your maintenance team to compare the offered unit with the installed equipment and the applicable Emerson AMS 6300 SIS operating manual before approving the order.

      Technical specifications for A6371-10

      • Manufacturer:
        Emerson
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        A6371-10
      • Weight:
        0.24 kg
      • Tariff Code:
        8537101190
      • Backplane logic:
        Trip Not Voted
      • Monitor positions:
        Three; F48 interfaces
      • Trip relay outputs:
        Three; one per channel
      • Auxiliary relay outputs:
        Out2 and Out3, each 2oo3
      • Trip A terminals:
        7 common, 8 NC, 9 NO
      • Trip B terminals:
        10 common, 11 NC, 12 NO
      • Trip C terminals:
        13 common, 14 NC, 15 NO
      • Power terminals:
        16/17 and 18/19
      • System voltage:
        19–31.2 VDC; nominal 24 VDC
      • Supply arrangement:
        Two diode-decoupled inputs
      • Auxiliary contact load:
        48 VAC / 4 A or 30 VDC / 4 A maximum
      • Trip contact AC15 load:
        48 VAC / 3 A maximum
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • Emerson A6371-10 routes the three channel trip decisions separately so the installation can implement its required external voting arrangement. It also brings system power and the voted Out2 and Out3 relay circuits to the backplane terminal strip.
      Trip architecture: Three separate channel trip relay outputs
      Auxiliary relays: Out2 and Out3 each use 2oo3 logic
      Power connection: Redundant nominal 24 VDC feeds through the backplane
      The hyphenated A6371-10 order identity corresponds to the A6371/10 Trip Not Voted backplane. It is distinct from A6371/00, which supplies voted trip outputs. Three F48 monitor positions and separate analog and digital channel connections form the assembly interface.

      Terminals 7–9 serve Trip A, 10–12 serve Trip B and 13–15 serve Trip C, with changeover, normally closed and normally open contacts in each group. Out2 occupies terminals 1–3 and Out3 occupies 4–6; those two auxiliary functions retain 2oo3 logic even though the trip channels are separate.

      The two supply feeds connect at terminals 16/17 and 18/19. Diode decoupling supports redundant input power, while the return circuits share the intended common connection. Use 19–31.2 VDC and a supply with at least 30 W capability for the complete assembly. External trip voting, relay load category and the full protection circuit must match the installed design.
      Controller platform reference: AMS 6300 SIS Trip Not Voted. Keep channel trip circuits and external voting consistent.
      Technical material for Emerson A6371-10 covers backplane identity, separate trip terminals, redundant power and relay-load categories. The separate installation guide covers trip-wire identification, power entry, relay circuit matching and external voting tests.
      Original manufacturer pages retain their technical context. Use the Apter Power guide with the applicable manufacturer instructions and approved installation design.
      System and supply context: Install three compatible monitors on the A6371/10 backplane and connect the individual trip contacts to the approved external protection logic. Monitor cards and the external voting circuit are separate components.

      Application scope: The Trip Not Voted arrangement is suited to protection architectures that retain independent channel trip decisions. Auxiliary Out2 and Out3 remain voted at the backplane.
      Prepare Emerson A6371-10 for its configured installation using these checks.
      Match the suffix

      Do not substitute A6371/00 for A6371/10 without redesigning and verifying trip logic.

      Label trip circuits

      Keep each common, NC and NO wire associated with Trip A, B or C.

      Respect load category

      Use the relay rating applicable to the actual resistive or control load.

      Verify redundant feeds

      Check both input supplies and their common returns before enabling the system.

      Check module engagement

      Confirm all F48 monitor connections are fully seated and compatible.

      Test external voting

      Exercise each channel separately and verify the complete external trip response.

      Alternative Names

      A6371-10 Emerson A6371-10 A6371/10 Emerson A6371/10

      Technical notes

      Signal relationship: Trip A, B and C remain separate on this backplane. The 2oo3 notation on Out2 and Out3 does not make the three trip relay circuits a voted trip output.

      Installation boundary: Relay load limits depend on circuit category. The trip AC15 limit is 48 V at 3 A; the AC1 limit is 48 V at 4 A. Use the category applicable to the real switched load.

      Technical basis: Emerson AMS 6300 SIS Operating Manual, MHM-97442 Rev. 2.09, October 2026. A6371-10 maps to A6371/10 Trip Not Voted. Supply and environmental limits apply to the complete installed AMS 6300 SIS assembly.

      FAQ View All FAQ

      • Why are three trip relays provided on A6371-10?
        A6371/10 is the Trip Not Voted version. It exposes one trip relay per monitor channel so the external circuit can implement its intended voting logic.
      • Which A6371-10 terminals carry the Trip B changeover contact?
        Terminals 10, 11 and 12 are Trip B common, normally closed and normally open respectively.
      • Are Out2 and Out3 on A6371-10 also separate channel outputs?
        No. Out2 and Out3 each use 2oo3 relay logic. Their arrangement differs from the three independent trip relay outputs.
      • Where are the two supply feeds connected on A6371-10?
        The backplane uses terminals 16/17 and 18/19 for the redundant positive and return pairs. Verify polarity and the common-return arrangement against the installed wiring.
      • Can A6371-10 replace an A6371/00 without changing the trip circuit?
        No. A6371/00 provides voted trip outputs while A6371/10 provides three individual channel trip outputs. The external circuit must be reviewed and tested for that difference.
      • What AC15 switching limit applies to the trip contacts of A6371-10?
        The trip-relay AC15 rating is 48 VAC at a maximum 3 A. The 4 A AC1 value must not be substituted for this control-load category.
      • How does A6371-10 support supply redundancy?
        The complete system has two supply inputs decoupled by diodes. One feed can remain available when the other is disconnected; the installation must provide correctly protected and coordinated feeds.
      • Does A6371-10 provide the same Channel OK relay listed for A6371/00?
        The A6371/10 output arrangement lists three trip relays plus voted Out2 and Out3. The separate 1oo3 Channel OK relay is listed for A6371/00 and must not be assumed for this version.
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