NI 9481 Operating Instructions and Specifications 12 ni.com
Switching capacity (resistive load)
Switching voltage....................... 60 VDC max, 250 Vrms max
Switching current, per channel
One channel on................... .4 A max at 30 VDC,
1A max at 60 VDC,
4A max at 250 Vrms
All channels on................. ...2 A max at 30 VDC,
1A max at 60 VDC,
2A max at 250 Vrms
Resistance per channel,
channel on......................................... 50 mΩ
Switching rate................................... 1 operation per second
Relay release time............................. 5 ms max
Relay operate time............................ 10 ms max
Relay bounce time......................... ...3 ms
Off state leakage............................ ...10 μAmax
Life expectancy
Mechanical (no load)..................20,000,000 operations
Electrical (connecting to load)... 100,000 operations