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© National Instruments Corp. 11 cFP-RLY-421
Specifications
The following specifications are typical for a range of –40 to 60 °C
unless otherwise noted.
Relay Characteristics
Number of channels..........................8
Relay type.........................................1 SPST, nonlatching
Maximum switching capacity (resistive load)
–40 to 60 °C
AC........................................1.5 A at 250 VAC
DC........................................1.5 A at 0 to 35 VDC
1 A at 55 VDC
0.4 A at 120 VDC
Minimum switching load..................10 mA at 5 VDC
On resistance.....................................100 mΩ
Off-state leakage (120 VDC/250 VAC)
Expected life
Mechanical .................................20
× 10
6
operations min
Electrical (at 30 cpm).................300,000 operations at 1.5 A,
35 VDC;
100,000 operations at 1.5 A,
250 VAC
Maximum switching frequency
Mechanical .................................20 operations per second
Electrical.....................................1 operation per second at
maximum load
Relays operate time...........................6 ms typical, 8 ms max
Relays release time...........................3 ms typical, 4 ms max
Relay bounce time ............................3 ms max
Contact material................................Gold-plated silver cadmium
oxide
Frequency Off-State Leakage
DC 0.12 µA
50/60 Hz 8 µA