1260-X133 User Manual
Racal Instruments
©
2005
Specifications 1-3
Vibration
0.013 in. P-P, 5-55 Hz
Bench Handling
4 in., 45
°
Temperature
Operating
0
°
C to +55
°
C
Non-operating -40
°
C to +75
°
C
Relative Humidity
85% + 5% non-condensing at
<
30
°
C
Altitude
Operating
10,000
feet*
Non-operating 15,000
feet
Power Requirements
+5 VDC
500mA + 30mA per energized relay
(2A Max.)
Weight
1.0 lb. (0.45 kg.)
Dimensions 4.4”Hx0.75”Wx12.6”D
MTBF (50% rated load, 0.1 cycle/hour))
With relays
130,226 hours at 25
°
C
With relays
117,034 hours at 30
°
C
Safety Standard
EN61010-1
Pollution Class 2
Impulse Withstand 1000V
* Operation at 15,000 feet requires de-rating of maximum overall
power dissipation to 49W
Power
Dissipation
While the cooling of the Adapt-a-Switch carrier is dependent upon
the chassis into which it is installed, the carrier can normally
dissipate approximately 160W. The maximum power dissipation for
an individual module is 60W. Care must be taken, then, in the
selection and loading of the plug-in modules used in the carrier. It
is not possible to fully load the carrier, energize every relay, and
run full power through every set of contacts, all at the same time.
In practice this situation would never occur.
To properly evaluate the power dissipation of the plug-in modules,
examine the path resistance, the current passing through the relay
contacts, the ambient temperature, and the number of relays
closed at any one time.
