Siemens 3UG4 - Page 88

3RR2 current monitoring relays
4.5 3RR22 current monitoring relays
3UG4 / 3RR2 monitoring relays
88 Manual, 05/2016, NEB927043002000/RS-AC/004
Supply voltage
3RR224.-..A..
3RR224.-..W..
Type of supply voltage
AC/DC
Supply voltage frequency
• 1
Hz
50 … 60
Supply voltage 1
• for DC
– rated value
V
24 —
– initial rated value
V
— 24
– final rated value
V
— 240
• at 50 Hz for AC
– rated value
V
24 —
– initial rated value
V
— 24
– final rated value
V
— 240
• at 60 Hz for AC
– rated value
V
24 —
– initial rated value
V
— 24
– final rated value
V
— 240
Insulation voltage
of the auxiliary and control
circuit
for overvoltage category III according to
IEC 60664
with degree of pollution 3
rated
value
V 300
Impulse voltage resistance
of the auxiliary and
control current circuit rated value
V 4 000
Stored energy time
supply voltage failure
minimum
ms 10