8650B Series – 50 kW, Forced-Air Cooled Moduload™ RF Terminations
50 kW, Forced-Air Cooled Moduload™ RF Terminations
8650B Series, RF Loads are compact high-power 50-ohm terminations efficiently dissipate up to 50 kW of RF over a wide frequency range up to 900 MHz.
- Interlock control circuit provides fail-safe protection of the transmitter and load resistor in the event of an ac power failure to the blower or coolant pump.
- Compact, low-profile design saves space in crowded transmitter sites.
- Available Voltage Options (add suffix to model number)
- 115V @ 60 Hz (-115)
- 230V @ 50 Hz (-230)
- 230V @ 60 Hz (-230-6)
Model Selections
| Model | Connector |
|---|---|
| 8655B | 3-1/8″ EIA, Flanged |
| 8656B | 3-1/8″ EIA, Unflanged (Flush) |
| Product | Description |
|---|---|
| Item No | 850B Series |
| Item Name | 50 kW, Forced-Air Cooled Terminations |
| Power Rating | 50 kW continuous |
| Frequency Range and VSWR | 1 kHz to 900 MHz @ 1.10 max (DC for continuity checks) |
| Temperature Range | Per Power Level and Coolant Mix: >40 kW: (100% Water) +5 to +30°C; <40 kW: (100% Water) +5 to +45°C >40 kW: (35% Ethylene Glycol/65% Water) +20 to +25°C <40 kW: (35% Ethylene Glycol/65% Water) -20 to +35°C |
| Coolant | 17 qt (16 liters) 100% water or 65% water/35% industrial Ethylene Glycol. With forced-air cooling |
| Product Type | Forced-Air Cooled |
| Operating Position | Horizontal Only |
| Connectors | See Model Matrix |
| Finish | Gray Powder Coat |
| Dimensions | 50.5 in x 19.2 in x 19.6 in (L x W x D) (659 mm x 487 mm x 497 mm) |
| Weight | 275 lb (125 kg) |
| Power | 115 V models: 14 A nominal @ 115V ± 10% 60Hz 230 V models: 7 A nominal @ 230V ± 10% 50Hz |
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