7SR18 Performance Specification
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1.6.3.2 Slow Damped Oscillatory Wave
IEC 60255-26
Type Level
Differential mode 1.0 kV
Common mode 2.5 kV
1.6.3.3 Electrostatic Discharge
IEC 60255-26
Type Level Variation
Contact Discharge 6 kV (Level 3)
≤ 5 %
Air Discharge 8 kV (Level 3)
≤ 5 %
Air Discharge 15 kV (Level 4)
≤ 5 %
1.6.3.4 Radiated Radio Frequency Electromagnetic Field Immunity
IEC 60255-26
Type Level
80 MHz to 1000 MHz (Sweep) 10 V/m
1.4 GHz to 2.7 GHz (Sweep) 10 V/m
80 MHz, 160 MHz, 380 MHz, 450 MHz, 900 MHz, 1850 MHz, 2150 MHz (Spot) 10 V/m
1.6.3.5 Fast Transients
IEC 60255-26
Type Level (Auxiliary Power, I/O*) Level (Comms Port)
5/50 ns 5 kHz repetitive 4 kV 2 kV
* Note 20 ms drop-off delay applied to binary inputs
1.6.3.6 Surge Immunity
IEC 60255-26
Type Level Variation
Analogue Inputs, Auxiliary Power: Line to Earth 4.0 kV
≤ 10%
I/O: Line to Earth 2.0 kV *
≤ 10%
RS485 Comms port: Line to Earth 1.0 kV No Data Loss
Analogue Inputs, Auxiliary Power: Line to Line 2.0 kV
≤ 10%
I/O: Line to Line 1.0 kV *
≤ 10%
* Note 50 ms pick-up delay and 20 ms drop-off delay applied to binary inputs
1.6.3.7 Conducted Disturbance Induced by Radio Frequency Interference
IEC 60255-26
Type Level
0.15 MHz to 80 MHz 10 V
1.6.3.8 Power Frequency Magnetic Field Strength
IEC 61000-4-8
100 A/m, (0.126 mT) continuous
50 Hz
1000 A/m, (1.26 mT) for 3 s