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3 year warranty

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Model 8200-204's three units are connected in a two-out-of-three voting configuration so that if any single unit fails, the ProTech system will still provide the correct output.



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  • Part Number: 8200-204
  • SKU: 8200204WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

8200-204 Technical Specifications

Dimensions W482.6mm x H310.4mm x D142.7mm
Features CPU Failure Indication
Input Voltage 220 Vac = 180–264 Vac, 16.4 VA
Keypad/Display 3 Displays and Keypads
Manufacturer Woodward ProTech
Model Energize-to-Trip
Operating Temperature –25 to +60 °C (–13 to +140 °F)
Standards NEMA 4/4x, IP54
Weight Less than 14 lbs

Product Description

Part 8200-204 is a digital overspeed protection trip device. This system was manufactured by Woodward as part of their ProTech 203 series. Model 8200-204 is one of the energize-to-trip versions in the series and is the only energize-to-trip model with a 220 Vac input.

Three separate magnetic pickups sense prime mover speed and monitor for overspeed conditions. If conditions are detected, a trip relay is activated. Accuracy and reliability are ensured in this system that utilizes three identical, individual speed-sensing units which are connected and configured for two-out-of-three voting. This configuration also permits online testing and the replacement of an individual unit should one fail.

Each unit in the 8200-204 system has a front panel with a touchpad, digital display, and LED indicators. There are separate LEDs to indicate a tripped speed-sensing unit, a failed MPU or its wiring, and an error in the units CPU. If a unit has tripped, there is an alarm output along with the LED.

The front panel is where the 8200-204 is programmed. Access to switch between MONITOR mode and PROGRAM mode is controlled with a key switch. All three units are secured with the same key lock to prevent any unauthorized changes to the system.

To ensure proper installation of the 8200-204 system, please consult Woodward ProTech 203 Overspeed Protection System Installation and Operation Manual 85205 (F). This manual is available online and covers details including location considerations, additional product specifications, and wiring and general installation instructions.

Reviews For 8200-204

Internal Review

The 8200-204 system can be operated in one of two modes: MONITOR or PROGRAM. Although the system will “run” in either mode, it is recommended that the unit be placed in the PROGRAM mode only during configuration and then placed in the MONITOR mode during normal operation. - AX Tech

Repair Services For 8200-204

Type Lead Time Price Action
Repair Service 1-2 weeks $4139

Our highly skilled technicians can repair your 8200-204. 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
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8200-204 Manuals, White Papers, Data Sheets, and Troubleshooting