Table A-2. Terminal Block Maximum Voltages - National Instruments Module SCXI-1125 User Manual

Appendix A Specifications
Maximum Working Voltage
Module
SCXI-1313A
SCXI-1327
TBX-1316
Cautions
signal voltages no greater than 300 V. Do not use the SCXI-1125 for connection to signals
or for measurements within Categories III or IV.
When hazardous voltages (>42.4 V
considered hazardous. Ensure that external wiring or any circuits connected to the device
are properly insulated from human contact.
Environmental
SCXI-1125 User Manual
Maximum voltage rating refers to the signal voltage plus the common
mode voltage (Signal + common mode). Voltage of each input shall remain
within 300 V of ground.
Channel-to-earth .....................................300 V, Measurement Category II
Channel-to-channel.................................300 V, Measurement Category II

Table A-2. Terminal Block Maximum Voltages

Signal Range
150 V 150 V, Measurement Category II
[channel-to-channel, channel-to-earth]
300 V 300 V, Measurement Category II
[bank-to-bank, bank-to-earth]
600 V 600 V, Measurement Category II
[Basic; channel-to-channel]
1000 V 1000 V, Measurement Category I
[Basic; channel-to-channel]
The SCXI-1125 is rated for Measurement Category II and is intended to carry
Operating temperature ............................0 to 50 °C
Storage temperature ................................–20 to 70 °C
Humidity .................................................10 to 90% RH, noncondensing
Maximum altitude...................................2,000 meters
Pollution Degree (indoor use only) ........2
Maximum Voltage and Category [Insulation]
/60 VDC) are present on any channel, all channels are
pk
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