🔵 WOODWARD MFR1 — Multi Function Relay 5448-885 Rev F

Versatile Protection and Control Module for Industrial Applications

The MFR1 Multi Function Relay 5448-885 Rev F is designed to provide comprehensive monitoring, protection, and control for industrial engines, generator sets, and power distribution systems. By integrating multiple protective functions into a single relay module, it ensures operational reliability while reducing panel complexity and wiring requirements. Its advanced logic and configurable settings allow precise management of faults, alarms, and control sequences.

The MFR1 is widely used in industrial, marine, and power generation environments, offering fast response to abnormal conditions, robust diagnostics, and seamless interface with supervisory control systems. Its rugged design ensures long-term stability in high-vibration, temperature-variable, and electrically noisy industrial settings.

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📑 Technical Parameters (Datasheet-Style Table)

Parameter	Specification
Model	MFR1 Multi Function Relay
Part Number	5448-885 Rev F
Relay Functions	Overcurrent, Undercurrent, Overvoltage, Undervoltage, Frequency, Time Delay, Custom Logic
Input Voltage	24–125 VDC / 48–250 VAC (configurable depending on input type)
Relay Outputs	4–6 configurable contact outputs (Form A/B)
Response Time	< 50 ms typical
Control Logic	Fully programmable with internal settings and DIP switches
Operating Temperature	–40 °C to +85 °C
Storage Temperature	–55 °C to +105 °C
Mounting	Panel-mount with DIN-rail compatibility
Enclosure	Rugged industrial-grade housing
Communication	Optional analog/digital interface for supervisory monitoring
Environmental Rating	Vibration-resistant, EMI-protected

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⚙ Functional Features

🟩 Multi-Purpose Protection

Combines overcurrent, undercurrent, overvoltage, undervoltage, and frequency monitoring into a single relay unit. Protects engines, generators, and auxiliary circuits from abnormal operating conditions.

🟩 Configurable Logic

Internal programmable logic allows custom settings for alarm thresholds, delay times, and sequence control. Supports user-specific operational scenarios without external controllers.

🟩 Fast Response and Diagnostics

Detects and responds to abnormal conditions in milliseconds, triggering relay outputs for protective shutdown or alarm activation. Provides diagnostic indicators for rapid troubleshooting.

🟩 Integration and Flexibility

Compatible with Woodward control systems and PM motors, as well as standard industrial circuits. Optional serial or analog output allows integration into SCADA or PLC-based monitoring systems.

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🛠 Installation & Operation Tips

• Install in vibration-resistant panels or cabinets with proper ventilation.
• Use shielded wiring for input signals to reduce noise interference.
• Configure relay thresholds and timing during commissioning to match system requirements.
• Periodically inspect relay contacts and wiring connections for wear or corrosion.

Authorized distributors and support are available through:
🔗 https://www.dcsplcsystem.com/
🔗 https://www.dcsplcsystem.com/woodward

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📦 Recommended Similar Products

Model	Description	Function	Application Focus
MFR2 Multi Function Relay	Extended protection relay	Over/under voltage, current, frequency	Industrial engines, generators
9907-173 Load Sharing Module Rev B	Load distribution and synchronization	Parallel generator load balancing	Multi-engine systems
8272-683 Digital Reference Unit	Digital speed reference	Precise setpoint control	Diesel and gas engine management
8440-1799 Easygen-350 Rev B	Generator control and protection panel	Integrated engine and generator management	Standby and prime power applications
5484-875 PM Motor 24VDC 5 RPM	Low-speed actuator motor	Precision motion control	Fuel or throttle positioning systems

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This relay provides comprehensive monitoring and protection for industrial engines and generator systems, combining fast response, multi-function logic, and integration flexibility to ensure safe and reliable operation in demanding applications.