©
National Instruments Corp.
7
NI 9481E Operating Instructions and Specifications
Specifications
The following specifications are typical for the range –40 to 85 °C
unless otherwise noted.
Output Characteristics
Number of channels.......................... 4 electromechanical relay
channels
Relay type ......................................... Single pole single throw
(SPST)
Power-on output state ....................... Channels off
Switching capacity (resistive load)
Switching voltage ....................... 60 VDC max, 250 V
rms
max
Switching current, per channel
One channel on .................... 4 A max at 30 VDC,
1 A max at 60 VDC,
4 A max at 250 V
rms
All channels on .................... 2 A max at 30 VDC,
1 A max at 60 VDC,
2 A max at 250 V
rms
