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ProTech-GII bulkhead-mount overspeed protection device

8237-1246

Product Information:

Woodward 8237-1246 identifies a ProTech-GII bulkhead-mount overspeed protection device with triple-redundant modules and voted trip outputs. Use 8237-1246 only in the documented turbine and rotating-equipment protection systems installation whose hardware, wiring and configuration match this exact execution. Confirm part 8237-1246, bulkhead mounting, input-power option, speed probes, trip wiring, voted relays and configured overspeed setpoints before replacement.

  • One-year warranty
  • Global shipping
  • Exact-model verification
    • PRODUCT OVERVIEW

      What is this product?

      The Woodward 8237-1246 is a highly reliable ProTech-GII configurable overspeed protection device designed for safety-critical rotating machinery. It is primarily used to execute high-speed emergency trips upon detecting overspeed or excessive acceleration conditions, thereby safely shutting down steam turbines, gas turbines, hydro turbines, and large industrial compressors.

      Selection basis

      Confirm part 8237-1246, bulkhead mounting, input-power option, speed probes, trip wiring, voted relays and configured overspeed setpoints before replacement.
    • APPLICATIONS

      Where it may be used

      Typical industries for the documented ProTech-GII bulkhead-mount overspeed protection device.

      Steam Turbines

      Trips turbines during verified overspeed conditions.

      Gas Turbines

      Provides independent high-speed overspeed protection.

      Hydro Units

      Protects hydro turbines from unsafe acceleration.

      Compressors

      Guards critical trains with two-out-of-three voting.
Technical specifications for

8237-1246

0 TECHNICAL PARAMETERS
  • Manufacturer:
    Woodward
  • Product Category:
    Machinery Monitoring System
  • Product Family:
    ProTech-GII
  • Mounting:
    Bulkhead mount
  • Architecture:
    Three independent modules
  • Voting Logic:
    Two-out-of-three
  • Speed Range:
    0.5–32,000 rpm
  • Response Time:
    12 ms
  • Safety Integrity:
    IEC 61508 SIL 3
  • Stock Availability:
    1
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  • 05

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    Pay the full invoiced amount by bank wire in RMB/CNY, GBP, EUR or USD using the official invoice details.
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BUYER INFORMATION

Product condition level information

Commercial details are confirmed in writing before payment.
  • 01

    Factory Sealed

    Unused product with the original factory seal intact; packaging age or storage marks may still be present.

  • 02

    Original Pack

    Unused product in original manufacturer packaging that was not originally factory sealed.

  • 03

    Factory New

    New and current product sourced through the manufacturer or authorized supply channel when expressly confirmed in the quotation.

Alternative Names

Woodward 8237 1246 ProTech-GII 8237-1246 ProTech GII Bulkhead Overspeed Device

Information

Overview Manuals Overspeed Architecture Probe and Trip Wiring Protection Testing

Features:

  • Woodward 8237-1246 identifies a ProTech-GII bulkhead-mount overspeed protection device with triple-redundant modules and voted trip outputs.
  • Confirm part 8237-1246, bulkhead mounting, input-power option, speed probes, trip wiring, voted relays and configured overspeed setpoints before replacement.
  • Preserve probe gaps, speed-channel wiring, independent power feeds, relay circuits and mechanical mounting while following the approved turbine isolation procedure.

8237-1246 must be matched to the receiving equipment and project record. Complete speed-simulation, two-out-of-three voting, relay, alarm, communications and online module-test checks before releasing the machine.

Official source: official Woodward ProTech-GII 8237-1246 PDF. Values not tied to the exact official source are withheld.
8237-1246 official technical documentation and verified Moore Automated resources.Important Notice: Confirm the complete model, article number and installed configuration before replacement. All links open in a new page.

Maintain the three independent speed channels and documented two-out-of-three trip voting.

Match speed probes, power feeds, alarm circuits and voted trip relays to the machine design.

Prove simulated speed, voting, relays and diagnostics through the approved turbine test procedure.

Technical notes

8237-1246 must be controlled by its complete manufacturer identity and installed-system documentation. Confirm part 8237-1246, bulkhead mounting, input-power option, speed probes, trip wiring, voted relays and configured overspeed setpoints before replacement. Preserve probe gaps, speed-channel wiring, independent power feeds, relay circuits and mechanical mounting while following the approved turbine isolation procedure. Complete speed-simulation, two-out-of-three voting, relay, alarm, communications and online module-test checks before releasing the machine.

Triple-Redundant Protection

ProTech-GII uses three independent modules and two-out-of-three voting for overspeed shutdown. Each speed input, power feed and trip path must remain independently traceable.

Turbine Trip Acceptance

The device supports 0.5–32,000 rpm measurement and a 12 ms response. Verify probe signals, setpoints, voted relays and online test behavior before service.

Customs & shipping dimensions / weight

  • Packed shipping dimensions
    Confirmed after final packing
    Official product dimensions: Refer to the official bulkhead-mount dimensional drawing in the Woodward manual.
  • Packed shipping weight
    Confirmed after final packing
    Official product net weight: Approximately 12 kg (26 lb), bulkhead-mount version.
  • HS / customs code
    Not officially confirmed
    Verify the applicable classification for the destination before shipment.
  • Country of origin
    Not officially confirmed
    Verify from the supplied item nameplate or certificate of origin.
  • Ships from
    Xiamen, Fujian, China
    Dispatch location is confirmed in the written quotation.
  • Customs documents
    Confirmed for the destination
    Available document scope is stated in the written quotation.
PRODUCT & ORDER FAQS

Questions buyers ask about 8237-1246

  • How is the exact 8237-1246 identified?

    Woodward 8237-1246 identifies a ProTech-GII bulkhead-mount overspeed protection device with triple-redundant modules and voted trip outputs.
  • What must match before installing 8237-1246?

    Confirm part 8237-1246, bulkhead mounting, input-power option, speed probes, trip wiring, voted relays and configured overspeed setpoints before replacement.
  • Which industries use 8237-1246?

    Steam Turbines, Gas Turbines, Hydro Units, Compressors.
  • What preparation is required before replacement?

    Preserve probe gaps, speed-channel wiring, independent power feeds, relay circuits and mechanical mounting while following the approved turbine isolation procedure.
  • How should 8237-1246 be commissioned?

    Complete speed-simulation, two-out-of-three voting, relay, alarm, communications and online module-test checks before releasing the machine.
  • Which documentation supports this product record?

    The first Manuals link opens the on-site official manufacturer PDF or model-specific official excerpt used for this product record.
  • Is 8237-1246 available from stock?

    Current availability and supplied condition are confirmed for the exact model in the written quotation.
  • What should accompany an enquiry?

    Provide quantity, clear nameplate photographs, receiving-equipment identity, installed configuration and delivery destination.
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WHY BUYERS WORK WITH MOORE AUTOMATED

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  • Documentation available

    Product photos, packaging photos, certificates and datasheets can be provided when available.
  • Clear commercial terms

    Condition, warranty, lead time, included items and shipping terms are stated clearly in writing.
  • 20+ years of experience

    Over 20 years of experience in industrial automation and hard-to-source legacy parts.
  • Product Lifecycle Stage

    Availability and lifecycle status are confirmed for the exact 8237-1246 at quotation.

    Moore Automated verifies the supplied condition, included items and installed-system match against the complete manufacturer identity.

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Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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