Bird Technologies 8640B Series - Manual (Page 39)

Bird 8640 Series Moduload RF Load Resistor
28
Specifications
Frequency Range 1 kHz – 900 MHz
Power Rating 25 kW continuous duty
Mode CW, AM, FM, SSB, TV and certain pulse types
Impedance 50 ohms nominal
VSWR 1.10 max
Connectors
8645
8646 3
1 ⁄
8
inch EIA Flanged
3
1 ⁄
8
inch Unflanged
Interlock Rating NO or NC Connections
5A @ 250 Vac
10A @ 125 Vac
48 Vdc
Cooling Method Water dielectric and forced air convection
Coolant
*
* Below 5°C, ONLY use 35% E.G. and 65% Dist. H
2
O mixture
Distilled water or distilled water/ethylene glycol
mixture
Coolant Capacity 9 qts. (8.5 L) nominal
AC Power
–115
–230
–230–6 115 Vac @ 11 A, 60 Hz
230 Vac @ 5.5 A, 50 Hz
230 Vac @ 5.5 A, 60 Hz
Fuse Rating (864x) 3AB Time-Delay
115 Vac
230 Vac 15 A
8 A
Fuse Rating (864xB) Time-Delay
115 Vac
230 Vac 15 A (3AB)
8 A (5x20 mm)
Ambient Temperature
†
† Above 30°C (86 °F) with water only, or 25°C (77 °F) with a 35% ethylene
glycol mixture, derate power to 20 kW max.
Water only
35% Ethylene Glycol +5 to +45
†
°C (41 to 113 °F)
–20 to +35
†
°C (–4 to +95 °F)
Dimensions 26"L x 19-5/8"W x 19-1/4"H (670 x 500 x 490 mm)
Weight, Nominal 154 lb. (70 kg)