2-1
General Specifications
This table shows the general specifications of all System Units.
Item Specification
Enclosure Mounted in a panel
Grounding methods Ground of 100 Ω or less
Operat-
ing en-
viron-
ment
Ambient operating temper-
ature
0 to 55°C
Ambient operating humidi-
ty
10 to 95% RH (with no icing or condensation)
Atmosphere Must be free from corrosive gases.
Ambient storage tempera-
ture
-25 to 70°C (with no icing or condensation)
Altitude 2,000 m max.
Pollution degree Pollution degree 2 or less: Conforms to JIS B 3502 and IEC 61131-2.
Noise immunity Conforms to IEC 61000-4-4, 2 kV (power supply line)
Overvoltage category Category II: Conforms to JIS B 3502 and IEC 61131-2.
EMC immunity level Zone B
Vibration resistance Conforms to IEC 60068-2-6.
5 to 8.4 Hz with amplitude of 3.5 mm,
8.4 to 150 Hz, acceleration of 9.8 m/s
2
100 min each in X, Y
, and Z directions (10 sweeps of 10 min each =
100 min total)
Shock resistance
Conforms to IEC 60068-2-27, 147 m/s
2
, 3 times each in X, Y
, and Z
directions
Insulation resistance Refer to the individual specifications of NX Units.
Dielectric strength Refer to the individual specifications of NX Units.
Applicable standards cULus: Listed (UL508), ANSI/ISA 12.12.01, EU: EN 61
131-2, C-Tick,
KC (KC Registration), NK, and LR
Note 1. The specifications of insulation resistance and dielectric strength vary with NX Unit Models.
Note 2. Refer to the OMRON website (www.ia.omron.com) or ask your OMRON representative for the most re-
cent applicable standards for each model.
2 Specifications
2-2
NX-series System Units User's Manual (W523)