3
2. Technical parameters
2.1 Technical specification
Working environment
Working temperature
-10°C to 55°C
Storage temperature
-25°C to 70°C
Relative humidity
≤95% RH, no condensation
Working altitude
≤2500m
Protection degree
Front case IP64, rear case IP20.
Insulation
Between signal, power supply, output terminal to case
resistance >100MΩ
Working power supply
Rated range
AC/DC
（
20
～
300
）
V
Power consumption
≤5VA
Withstand voltage
≥2kV
Voltage input
Rated range
230V/400V
（
continuous: 1.2Un
）
Resolution
0.1 V
Impedance
1.6 MΩ/
per phase
Power consumption
≤0.1 VA /
per phase
Over voltage
Instantaneous
：
2 times/10s
Frequency
45-65 Hz
Current input
Range
5A/1A
, (continuous: 1.2In)
Resolution
1 mA
Impedance
≤20mΩ/
per phase
Power consumption
≤0.2 VA/
per phase
Over current
Instantaneous
：
10 times/5s
Relay output
Capacity
5A/250 VAC; 5A/30 VDC
Summary of Contents for Sfere720A
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