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10 kW, Forced-Air Cooled Moduload RF Terminations
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Personal Greeting

8630B Series, RF Loads are high-power 50-ohm loads that efficiently dissipate up to 10 kW of RF over a wide frequency range up to 1 GHz.

  • 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)

product specifications:

Item No

8630B Series

Item Name

10 kW, Forced-Air Cooled Terminations

Power Rating

10 kW continuous

Frequency Range and VSWR

1.1 max. 1kHz - 1000 MHz (DC for continuity checks)

Temperture Range

Per power level and coolant mix:
<=10 kW: (35% Water) +5 to +45 °C
<=10 kW: (35% Ethylene Glycol/ 65% Water) -20 to +35°C


10 pts (4.75 liters) 100% water
or 65% water/ 35% industrial Ethylene Glycol. With forced-air cooling


Tubular, Parallel Connection

Product Type

Forced-Air Cooled

Operating Position

Horizontal Only


See Model Matrix


Gray Powder Coat


22-1/8" x 15-15/16" x 15-13/16" (L x W x D)
562 x 405 x 402 mm


110 lbs. (50 kg)


115 V models: 9 1/2 A nominal @ 115V ± 10% 60Hz;
230 V models: 4 3/4 A nominal @ 230V ± 10% 50Hz

Model Selections

Model Connector
8631B 3-1/8" EIA, Flanged
8635B 1-5/8" EIA, Flanged
8638B 3-1/8" EIA, Unflanged

The 8640A930-1, Load Protection Switch provides an added layer of safety for the water-cooled Moduloads by preventing RF power from reaching it before proper coolant flow has been established. This device protects the Moduloads from damage that can result in costly downtime. Only Available for 8631B, 3-1/8" Flanged Units

For more information, click here!


Declaration of Conformity