Technical data
77
10.6.5 Degree of protection
Front-panel IP 54 (IEC 60529, Cat. 2) NEMA 2
rear-panel IP 20 (IEC 60529, Cat. 2)
10.6.6 Electrical safety
IEC 61010-1, protection class I
Low voltage: overvoltage category II
Environment < 3000 m (< 9843 ft) above MSL (mean sea level)
10.6.7 Electromagnetic compatibility (EMC)
Interference immunity:
To IEC 61326: Class B (industrial environment) and NAMUR NE21:
• ESD (electrostatic discharge): IEC 61000-4-2 severity 3 (6/8 kV)
• HF field (electromagnetic interference fields): IEC 61000-4-3: severity 3 (10 V/m)
• Burst (quick transient disturbance variables): IEC 61000-4-4 severity 3 (1 kV signal, 2 kV power
supply)
• Surge on power line: IEC 61000-4-5: 2 kV asymmetrical, 1 kV symmetrical
• Surge on signal line: IEC 61000-4-5: 1 kV asymmetrical (with external protection element)
• Conducted HF: IEC 61000-4-6: 150 kHz to 80 MHz, 10 V
• Power failure: IEC 61000-4-11 (> 20 ms/0%)
• Voltage variation: IEC 61000-4-11 (40% / 0%)
Emission:
To IEC 61326: Class A (operation in industrial environment)
Interference voltage:
Power line: To CISPR 16-1/-2: Class A
Interference current:
Ethernet line: To EN 50022: Class A
Interference field intensity:
Housing/all connections: to CISPR 16: Class A
Interference voltage suppression:
• Common mode interference voltage suppression: IEC 61298-3:
Analog inputs: 80 dB at 60 V and 50 Hz / 60 Hz
• Push-pull interference voltage suppression: IEC 61298-3:
Analog inputs: 40 dB at 50 Hz / 60 Hz, for measuring range/10
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