1. System installation requirements
1-3
TI 30A30A10-01EN
n
Measurement categories
Regarding the measurement inputs, the following requirements must be satisfied to meet the
specifications for the device:
The category of the equipment applies to No.1 in the following table.
The rated transient overvoltage is 1500 V.
Note: Do not use the equipment for measurements within measurement categories II, III and IV.
Table Measurement category
No.
Applicable standard
Description
IEC/EN/CSA 61010-2-030
No. 1
O (Other)
For measurements performed on circuits not directly connected to
MAINS.
No. 2
Measurement category II
For measurements performed on circuits directly connected to the
low voltage installation.
No. 3
Measurement category III
For measurements performed in the building installation.
No. 4
Measurement category IV
For measurements performed at the source of the low-voltage
installation.
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Applied standards
SEE
ALSO
For the applicable standards for the N-IO field enclosure, refer to the following GS.
For CENTUM VP, “N-IO field enclosure” (GS 33J62R10-01EN)
For ProSafe-RS, “ N-IO field enclosure” (GS 32P06Q10-01EN)
Feb. 26, 2018-00
