9905-882

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The Woodward ProTech 203 Electronic Two-out-of-Three Model 9905-882. Features de-energize-to-trip, CPU and MPU Failure Indication, and a Lockable Enclosure

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  • Part Number: 9905-882
  • SKU: 9905882WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-882

    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 4.50 (2)
  • Click a star to rate this product
    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 4.50 (2)
  • Click a star to rate this product
The Woodward ProTech 203 Electronic Two-out-of-Three Model 9905-882. Features de-energize-to-trip, CPU and MPU Failure Indication, and a Lockable Enclosure

AVAILABILITY:

CALL FOR AVAILABILITY

3 Year Warranty: Learn More
Sell Surplus: Have a 9905-882 to sell? Sell Now
Exchange Credit: Learn more about our exchange credit program
  • Part Number: 9905-882
  • SKU: 9905882WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-882 Technical Specifications

Dimensions W482.6mm x H310.4mm x D142.7mm (W19in x H12.244in x D5.62in)
Features Hot Replacement
Input Voltage (2)24 Vdc = 18–32 Vdc, 7.25 W and (1)220 Vac = 180–264 Vac, 7.25W
Keypad/Display 1 Keypad and Display per Module
Manual 85191
Manufacturer Woodward
Model De-energize-to-Trip
NEMA Rating 4x and IP54
Operating Temperature –25 to +60 °C (–13 to +140 °F)

Product Description

Reduce system downtime with the ProTech 203 Overspeed Protection System by Woodward. These systems continually monitor prime mover speed to activate a trip relay at the detection of overspeed conditions. This version, model 9905-882, is a de-energize-to-trip system. The modular design of this ProTech 203 system both ensures a high level of accuracy (0.1% at 25 °C) and permits normal operations during times other systems may require a full system stop.

 

Model 9905-882 uses magnetic pickups (MPUs) to monitor prime mover speed. Speed calculations are performed by three separate speed sensing units, connected in a two-out-of-three voting configuration. These three units that make up the 9905-882 are identical aside from their power supplies, which are as follows:

  • Unit A: 24 Vdc
  • Unit B: 24 Vdc
  • Unit C: 220 Vac

 

ProTech 203 model 9905-882 will function even if one of the speed-sensing units is offline. This means that the units can be tested one at a time or one can be replaced without the prime mover being taken offline. If one of the units is tripped, the other two will continue providing an accurate output. Speed-sensing units will remain tripped until the power is cycled or they are reset, and each one of them must be reset before the turbine is started.

 

ProTech 203 Overspeed Protection System Manual 85191 has more specifications and information about model 9905-882, including factors that should be considered when choosing an installation location. The enclosure of ProTech 203 model 9905-882 must use the optional stainless steel hubs in order to be certified NEMA 4X.

Reviews For 9905-882
Internal Review

Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam cups, cup holders, cigarette packages, cellophane wrappers, vinyl books or folders, and plastic bottles) away from the 9905-882, its modules, and the work area as much as possible. - AX Control Tech Teams

Repair Services For 9905-882

Type Lead Time Price Action
Repair Service 1-2 weeks $5011

Our highly skilled technicians can repair your 9905-882. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More

9905-882 Manuals, White Papers, Data Sheets, and Troubleshooting