Woodward 9907-345 ProTech 203 Overspeed Protection System | Original Spare Parts

Woodward 9907-345 ProTech 203 Overspeed Protection System — Industrial-Grade Safety for Critical Rotating Machinery

As a Procurement Manager sourcing mission-critical safety components, you need absolute confidence in both product authenticity and technical performance. The Woodward 9907-345 is a triple-redundant overspeed protection system engineered for the most demanding industrial environments. This unit is 100% Brand New and Factory Sealed, supplied directly as Original New spare parts from authorized distribution channels. The 9907-345 employs a 2-out-of-3 (2oo3) voting architecture across three independent speed-sensing modules, ensuring fail-safe shutdown response in milliseconds — a standard demanded by modern PLC System and DCS-integrated safety architectures.

Facilities operating steam turbines, gas compressors, or marine propulsion systems face a common challenge: legacy overspeed devices that lack redundancy and remote diagnostics. The 9907-345 directly addresses this gap. Designed as a drop-in upgrade for aging ProTech installations, this Control Module integrates seamlessly into existing Woodward governor ecosystems and third-party Industrial Automation platforms. Whether you are managing a power plant overhaul or procuring Spare Parts for an SIS upgrade, this unit delivers the reliability your operation demands.

With 100% Original and Brand New status verified at dispatch, fast global logistics, and full technical documentation support, the 9907-345 is the definitive choice for engineers who cannot afford downtime. Contact our team today for pricing and lead time confirmation.

Core Features & Technical Advantages

• Triple-Modular Redundancy: Three independent speed-sensing modules (A, B, C) with 2oo3 voting logic — protection continues even if one module faults
• De-Energize-to-Trip Fail-Safe: Automatic safe shutdown on power loss or internal fault — critical for hazardous area SIS compliance
• Hot-Swappable Modules: Replace individual modules during live operation without interrupting protection coverage — minimizes planned maintenance windows
• Wide MPU Signal Acceptance: 1-60 Vrms, 100 Hz 32 kHz — compatible with virtually all magnetic pickup configurations without signal conditioning
• Robust NEMA 4/4X Enclosure: Dust-tight and watertight construction rated for harsh industrial environments, -25°C to +60°C operating range
• Precision LCD Diagnostics: Per-module display with real-time speed readout, fault codes, and setpoint confirmation — reduces commissioning time significantly
• Certified for Hazardous Areas: CE, UL/cUL, Class 1 Division 2 (Groups A, B, C, D) — approved for oil & gas and petrochemical installations

Technical Specifications & Selection Guide

Use the table below to verify compatibility with your application before ordering. The 9907-345 is the standard three-module ProTech 203 configuration for panel-mount installations.

Selection Note: For applications requiring a different module count or enclosure configuration, alternative Woodward ProTech 203 part numbers are available. Contact our engineering team with your speed range, MPU count, and hazardous area classification for a tailored recommendation.

Typical Application Scenarios

Power Generation — Steam & Gas Turbines: Utility and cogeneration plants demand zero-tolerance overspeed protection. The 9907-345 integrates directly with Woodward 505/505E governors, providing a complete speed control and protection solution. Its 2oo3 architecture satisfies SIL 2 safety integrity requirements common in power plant SIS designs.

✅ Oil & Gas — Compressors & Pumps: Upstream and midstream facilities operating gas compressors in Class 1 Div. 2 environments rely on the 9907-345’s hazardous area certification and fail-safe trip logic. The hot-swap capability is particularly valued during turnaround maintenance where continuous protection is mandatory.

✅ Marine Propulsion — Main Engines & Auxiliary Turbines: Marine classification societies require redundant overspeed protection on propulsion turbines. The NEMA 4X enclosure withstands salt-laden atmospheres, and the triple-redundant design meets DNV, ABS, and Lloyd’s Register requirements for critical machinery protection.

✅ Petrochemical & Refining — Process Machinery: Refineries and chemical plants operating steam-driven pumps and expanders use the 9907-345 as a key element of their Safety Instrumented System (SIS). Its compatibility with existing Woodward Control Module infrastructure simplifies integration into legacy PLC System architectures.

Industrial Manufacturing — Heavy-Duty Rotating Equipment: Paper mills, steel plants, and cement facilities protecting high-inertia rotating equipment benefit from the programmable 100-25,000 RPM range and adjustable trip setpoints, enabling precise protection tuning without hardware changes.

Logistics & Professional Service

• ✅ Condition: 100% Original and Brand New — factory sealed with original Woodward packaging and documentation
• ✅ Shipping: 2-Day Express Shipping available to major global destinations; standard air freight typically 5-7 business days worldwide
• ✅ Warranty: 1-Year Warranty covering manufacturing defects and component failures from date of shipment
• ✅ Documentation: Original Woodward datasheet, wiring diagrams, and configuration manual available upon request
• ✅ EOL & Legacy Support: Full support for End-of-Life (EOL) legacy ProTech systems — we stock obsolete Woodward spare parts that are no longer available through standard distribution channels
• ✅ Global Export: Export documentation, country-of-origin certificates, and customs HS code support provided for all international shipments

FAQ — Frequently Asked Questions

Q1: What is the current price and lead time for the Woodward 9907-345?
A: Pricing for the 9907-345 is subject to real-time market availability. Given that this is a precision industrial safety component, we recommend contacting our sales team directly at sale@ninermas.com for a firm quotation. In-stock units typically ship within 2 business days; sourced units have a lead time of 7-15 business days depending on origin.

Q2: Is the 9907-345 100% original from Woodward, and can you provide proof of authenticity?
A: Yes. Every unit we supply is 100% Original and Brand New, sourced through verified supply chains. We provide original Woodward packaging, serial number traceability, and a Certificate of Conformance (CoC) upon request. Country-of-origin documentation is available for customs and compliance purposes.

Q3: Can I get the official Woodward 9907-345 datasheet and wiring diagram?
A: Absolutely. The official Woodward ProTech 203 manual (covering the 9907-345 configuration) is available upon purchase confirmation. Pre-sale technical documentation requests can be submitted to our engineering team — we support procurement engineers and site specialists throughout the evaluation process.

Q4: Is the 9907-345 compatible with non-Woodward PLC and DCS systems?
A: Yes. The relay outputs (Form C, 5 A @ 250 VAC) are industry-standard and interface directly with any PLC System, DCS, or SIS platform. The system operates as a standalone Industrial Automation safety device and does not require Woodward-proprietary communication protocols for basic trip functionality.

Q5: What is the difference between the 9907-345 and other Woodward ProTech 203 part numbers?
A: The 9907-345 is the standard three-module, panel-mount ProTech 203 configuration. Other part numbers in the 9907 series may differ in enclosure type, module count, or communication options. Our technical team can cross-reference your existing part number and confirm the correct replacement.

Q6: Do you support installation and commissioning assistance for the 9907-345?
A: We provide remote technical support including wiring guidance, setpoint configuration, and MPU installation best practices. On-site commissioning services can be arranged through our partner network for large-scale projects.