News
Featured
Contact Us
Contact: POWER DUKE
Phone: +86 18059884790
E-mail: plc66@qq.com
Add: fujian xiamen
- Warehouse: Spot
- Warranty: 365 days
- Quality: Original module
- Condition: New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat:18059884790
- E-mail: plc66@qq.com
WOODWARD 5437-1080 ProTech-GII Relay Module
Product Brief Description
Woodward 5437-1080 is a spare individual relay module for the ProTech-GII overspeed protection system. It works within the 2-out-of-3 voting safety architecture for turbine trip functions, compatible with panel and bulkhead mount ProTech-GII assemblies such as 8237-1244 and 8237-1367. With sulfur-resistant conformal coating, this relay provides reliable trip output for critical prime mover safety systems and is stocked as spare replacement for maintenance and outage repairs.

Product Features & Functions
- Individual relay output module for ProTech-GII overspeed protection trip logic
- Designed for 2oo3 voting architecture; system remains online during single module replacement
- Sulfur-resistant conformal coating for 3C2 corrosive industrial environments
- Independent alarm output to indicate relay channel fault or failure
- Supports on-line partial testing without tripping the turbine
- Separate electrical isolation for each relay channel to reduce cross-channel interference
- Wide operating temperature range, suitable for turbine control cabinet installation
- Works with ProTech-GII main processor for overspeed trip command execution
Application Scenarios
- Steam turbine overspeed safety protection systems
- Gas turbine and hydro turbine trip protection packages
- Oil & gas compressor prime mover safety control cabinets
- Cogeneration CHP plants and captive power generation stations
- Planned outage maintenance and emergency spare replacement for ProTech-GII systems
FAQ
Q: What system is 5437-1080 compatible with?
A: It is designed for Woodward ProTech-GII overspeed protection assemblies including 8237-1244 and 8237-1367.
Q: Can I replace one relay while the 2oo3 system stays running?
A: Yes. The 2-out-of-3 voting architecture allows single-channel hot replacement under proper lockout/tagout safety procedures.
Q: Is this a speed monitoring CPU board?
A: No. It is the relay output module. The ProTech-GII main processor handles speed detection and voting logic.
Q: What does conformal coating mean for this module?
A: The sulfur-resistant conformal coating protects PCB from corrosion, humidity and airborne contaminants in harsh industrial environments.
Q: Are refurbished 5437-1080 available?
A: Refurbished spare units are available. Each relay module undergoes functional and continuity testing before shipment.



