Functional description
Page 34 of 72 MSM-USM2G-BA-UK-004
Environmental conditions
Operating ambient temperatu -20°C .... +60°C
Storage temperature -20°C .... +70°C
Duty cycle 100 %
Protection class at the front IP 54
Protection class in the back IP 20
Humidity 75% r.h. max. on average over the year;
up to 93% r.h. during 56 days;
condensation during operation not permitted
[Test:40°C, 93% r.h. > 4 days]
Electric Data
Dielectric strength
Alternating voltage strength
RS232/RS485 interface against
Digital inputs 4 kV AC / 50 Hz 1 min
Analog inputs 1kV AC / 50Hz 1min (functional isolation)
Relay outputs 4 kV AC / 50 Hz 1 min
Supply (110 / 230V AC/DC) 3.0 kV AC / 50 Hz 1 min
Supply (12 / 24 / 48 V AC/DC) 1.0 kV AC / 50 Hz 1 min
Relay outputs against each other 500 V / 50 Hz 1 min
Surge voltage strength
RS232/RS485 against
Digital inputs 2.5 kV ; 1.2 / 50 µs; 0.5 J; according to IEC60255-27
Relay outputs 2.5 kV ; 1.2 / 50 µs; 0.5 J; according to IEC60255-27
Supply 2.5 kV; 1.2 / 50 µs; 0.5 J; according to IEC60255-27
Relay outputs against each other 500 V; 1.2 / 50 µs; 0.5 J; according to IEC60255-27
Electromagnetic compatibility
Noise immunity acc. to DIN EN 61000-4-2
DIN EN 61000-4-3
DIN EN 61000-4-4
DIN EN 61000-4-5
DIN EN 61000-4-6
DIN EN 61000-4-12
Noise irradiation acc. to DIN EN 61000-3-3
DIN EN 55011
Subject to technical changes without prior notice
The devices are designed and manufactured for industrial applications
according to EMC-standard.
Note!
Incorrect use (e.g. deviations of temperature, supply or signal voltage from the
specified values) can cause damage to the devices.
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