Datasheet
● at AC-1
— at 230 V rated value
16kW
— at 230 V at 60 °C rated value
15.5kW
— at 400 V rated value
28kW
— at 400 V at 60 °C rated value
27.5kW
— at 690 V rated value
48kW
— at 690 V at 60 °C rated value
47.5kW
● at AC-2 at 400 V rated value
18.5kW
● at AC-3
— at 230 V rated value
11kW
— at 400 V rated value
18.5kW
— at 500 V rated value
18.5kW
— at 690 V rated value
18.5kW
Operating power for approx. 200000 operating cycles
at AC-4
● at 400 V rated value
6kW
● at 690 V rated value
10.3kW
Thermal short-time current limited to 10 s 304A
Power loss [W] at AC-3 at 400 V for rated value of
the operating current per conductor
3.8W
No-load switching frequency
● at DC
15001/h
Operating frequency
● at AC-1 maximum
10001/h
● at AC-2 maximum
7501/h
● at AC-3 maximum
7501/h
● at AC-4 maximum
2501/h
Control circuit/ Control
Type of voltage of the control supply voltage DC
Control supply voltage at DC
● rated value
24V
Operating range factor control supply voltage rated
value of magnet coil at DC
● initial value
0.8
● Full-scale value
1.1
Closing power of magnet coil at DC 5.9W
Holding power of magnet coil at DC 5.9W
Closing delay
● at DC
50...170ms
Opening delay
● at DC
15...17.5ms
Arcing time 10...10ms
3RT2028-2BB40 Subject to change without notice
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12/18/2018 © Copyright Siemens