ProTech 203 Overspeed Protection System Manual 85204
2 Woodward
Table 1-1. De-energize-to-Trip ProTech Models
Part No. UNIT
UNIT B UNIT C
9907-147 24 Vdc 24 Vdc 24 Vdc
9907-149 120 Vac/dc 120 Vac/dc 120 Vac/dc
9907-151 220 Vac 220 Vac 220 Vac
Table 1-2. Energize-to-Trip ProTech Models
Part No. UNIT
UNIT B UNIT C
9907-146 24 Vdc 24 Vdc 24 Vdc
9907-148 120 Vac/dc 120 Vac/dc 120 Vac/dc
9907-150 220 Vac 220 Vac 220 Vac
Table 1-3. Voltage Ranges
Input Power Requirements Per Kernel
24 Vdc = 18–32 Vdc, 5.12 W
120 Vac/dc = 88–132 Vac, 12.5 VA
90–150Vdc, 4.77 W
220 Vac = 180–264 Vac, 16.4 VA
References
The following Woodward publications contain additional product or installation
information on overspeed protection systems and related components.
82715 Guide for Handling and Protection: Electronic Controls, Printed
Circuit Boards, Modules
82510 Magnetic Pickups and Proximity Switches for Electronic Governors
50532 EMI Control for Electronic Governing Systems
To Next Page
