Bird - The RF Experts
8630B Series
8630B Series, 10 kW, Forced-Air Cooled Terminations
8630B Series

8630B Series, 10 kW, Forced-Air Cooled Terminations are available in models to work with 115 or 230 volts at 50 or 60 Hz. This compact high-power 50-ohm termination efficiently dissipates up to 10 kW of RF over a wide frequency range up to 1 GHz. The RF input connector is located in the center of the side of the nearly cube-shaped unit.

  • Forced-air heat exchanger cooled load for high-power applications up to 1 GHz
  • Compact, low-profile design saves space in crowded transmitter sites
  • 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
8630B Series, Terminations
Model Connector
8631B 3-1/8" EIA, Flanged
8635B 1-5/8" EIA, Flanged
8638B 3-1/8" EIA, Unflanged

Power Add Suffix to Model
115 V 60 Hz 115
230 V 50 Hz 230
8630B Series, 10 kW, Forced-Air Cooled Terminations
8630B Series
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
Coolant
10 pts (4.75 liters) 100% water
or 65% water/ 35% industrial Ethylene Glycol. With forced-air cooling
Resistors
Tubular, Parallel Connection
Product Type
Forced-Air Cooled
Operating Position
Horizontal Only
Connectors
See Model Matrix
Finish
Gray Powder Coat
Dimensions
22-1/8" x 15-15/16" x 15-13/16" (L x W x D)
562 x 405 x 402 mm
Weight
110 lbs. (50 kg)
Power
115 V models: 9 1/2 A nominal @ 115V ± 10% 60Hz;
230 V models: 4 3/4 A nominal @ 230V ± 10% 50Hz
accessories:
5-1134-3
Ethylene Glycol, Industrial Grade