1. General Specifications
Model: 9907-806

Manufacturer: Woodward

Type: Solid-State or Mechanical Speed Switch (confirm variant)

Application: Overspeed/underspeed protection for turbines, engines, and industrial rotating equipment

2. Electrical Specifications
Power Supply:

24V DC (typical, range may vary)

Operating Voltage Range: 10–35V DC

Input Signal:

Magnetic Pickup (MPU) or proximity sensor

Frequency Range: 1 Hz – 20 kHz (depends on configuration)

Output:

SPDT (Single-Pole Double-Throw) Relay

Contact Rating: 5A @ 250V AC / 30V DC

3. Speed Settings & Performance
Adjustable Speed Range: 100–20,000 RPM (exact range depends on model)

Accuracy: ±1% of setpoint

Response Time: <50ms (typical)

4. Protection & Diagnostics
Overspeed & Underspeed Detection

Loss of Speed Signal Protection

LED Indication for Status & Faults

5. Environmental & Mechanical
Operating Temperature: -40°C to +85°C (-40°F to +185°F)

Housing: IP40-rated (dust-resistant)

Mounting: Panel or DIN rail mount

Key Features
✔ Reliable Overspeed Protection – Prevents catastrophic failures in critical machinery.
✔ Adjustable Setpoints – Customizable trip thresholds for different applications.
✔ Solid-State Design – No moving parts for increased durability (if applicable).
✔ Fail-Safe Operation – Ensures shutdown if speed exceeds safe limits.
✔ Easy Installation – Compatible with standard magnetic pickups.

Typical Applications
Gas/Diesel Engines

Steam & Gas Turbines

Compressors & Pumps

Power Generation Systems