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THERMAL SPECIFICATIONS
MOTOR TYPE 3804 3806 3808 3810 units
Maximum phase temperature 100 100 100 100
o
C
Thermal resistance R
thphase-housing
0.23 0.16 0.13 0.11
o
C/W
With 25 x 25 x 2.5 cm heatsink plate
Power dissipation @ 25
o
C ambient 89.3 110.3 127.1 144.2 Watt
Thermal resistance R
thhousing-ambient
0.61 0.52 0.46 0.41
o
C/W
Without heatsink plate
Power dissipation @ 25
o
C ambient 68.2 89.3 107.0 123.0 Watt
Thermal resistance R
thhousing-ambient
0.87 0.68 0.57 0.50
o
C/W
Thermal time constant 1677 1798 1924 2056 s
MECHANICAL SPECIFICATIONS
MOTOR TYPE XTA 3804 XTA 3806 XTA 3808 XTA 3810 XTB 3804 XTB 3806 XTB 3808 XTB 3810 units
Maximum stroke 318 318 318 318 1362 1291 1219 1148 mm
Forcer mass 2.75 3.75 4.75 5.75 2.55 3.55 4.55 5.55 kg
Forcer mass
(including bearings)
- - - - 3.05 4.05 5.05 6.05 kg
Thrust rod
mass/metre
8.3 8.3 8.3 8.3 8.3 8.3 8.3 8.3 kg/m
Page 20
Appendices ServoTube 38 Installation Guide