Safety Guidelines for Hazardous Voltages
Caution
Ensure that hazardous voltage wiring is performed only by
qualified personnel adhering to local electrical standards.
Caution
Do not mix hazardous voltage circuits and human-accessible
circuits on the same module.
Caution
Ensure that devices and circuits connected to the module are
properly insulated from human contact.
Note
When module terminals are hazardous voltage LIVE (>42.4 V
pk
/
60 V DC), you must ensure that devices and circuits connected to the
module are properly insulated from human contact. You must use the
NI-9927 connector backshell kit with the NI-9263 with screw terminal and
the NI-9981 connector backshell kit with the NI-9263 with spring terminal
to ensure that the terminals are not accessible.
Safety Voltages
Connect only voltages that are within the following limits:
Channel-to-channel
None
Channel-to-earth ground
Continuous
250 V RMS, Measurement Category II
Withstand
2,300 V RMS, verified by a 5 s dielectric withstand test
Safety Guidelines for Hazardous Locations
The NI-9263 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous
locations; Class I, Zone 2, AEx nA IIC T4 Gc and Ex nA IIC T4 Gc hazardous locations;
and nonhazardous locations only. Follow these guidelines if you are installing the
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NI-9263 Getting Started
