Isolation Voltage - National Instruments Relay Module SCC-RLY01 User Manual

Maximum Working Voltage
Do not use for connection to signals in Measurement Category II, III, or IV.
Caution
Do not connect to MAINS.
Caution Do not use for connection to signals in Measurement Category III, or IV.

Isolation Voltage

Environmental
1
For voltages >60 VDC, you must use the high-voltage backshell.
SCC-RLY01 Relay Module User Guide
I/O connectors.........................................One 20-pin right-angle
Field-wiring diameter .............................28 to 16 AWG
Maximum working voltage refers to the signal voltage plus the
common-mode voltage.
When used with an SCC-2345
Channel-to-earth (inputs).................±60 VDC, Measurement
When used with an SCC-68
Channel-to-earth (inputs).................±300 VDC, Measurement
Channel-to-channel, channel-to-earth isolation
Continuous.......................................60 VDC,
Withstand.........................................2300 V
Operating temperature ............................0 to 50 °C
Storage temperature ................................–20 to 65 °C
Humidity .................................................10 to 90% RH, noncondensing
Maximum altitude...................................2,000 m
Pollution Degree (indoor use only) ........2
male connector
One 3-pin screw-terminal block
Category I
Category II
Measurement Category I
dielectric withstand type test
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