Woodward 9905-990 Energize-to-Trip Safety Relay
- Product Name: Woodward 9905-990 Energize-to-Trip Safety Relay
- Product Description: An energize-to-trip safety relay designed for industrial control systems to provide critical protection and shutdown functions. It triggers a trip command to shut down equipment or systems in the event of a fault or abnormal condition, ensuring personnel and equipment safety.
- Technical Specifications:
- Power Supply: 24 VDC ±10% (18–32 VDC)
Detailed content
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- Trip Inputs: Fault signals from speed/load control modules, temperature/pressure sensors
- Trip Outputs: Energize-to-trip relay outputs (2 A @ 250 VAC) for shutdown devices
- Reset Function: Manual/remote reset with password protection
- Operating Temperature: -20°C to +70°C
- Enclosure: NEMA 4 rated for dust and water protection
- Certifications: CE, UL compliant
- Key Features:
- Energize-to-trip design for fail-safe operation (trip on power loss)
- Multiple fault input channels for comprehensive system monitoring
- Time-delayed trip output to prevent false trips during transient conditions
- Manual/remote reset with password protection to prevent unauthorized operation
- Fault memory for event logging and troubleshooting
- Compact design for easy integration into control cabinets
- Applications: Industrial engine/turbine control systems, power generation plants, oil & gas facilities, and marine propulsion systems.












