Electromagnetic Compatibility; Utilization Classes - Siemens SIRIUS 3RW44 User Manual

General Technical Data
Soft starters
Conductor cross-sections
Auxiliary conductor (1 or 2 conductors can be connected):

10.3.5 Electromagnetic Compatibility

Electromagnetic Compatibility according to EN 60947-4-2
EMC interference immunity
Electrostatic discharge (ESD)
Electromagnetic HF fields
Conducted HF interference
HF voltages and HF currents on conductors
• Burst
• Surge
EMC emission
EMC radio interference field strength
Radio interference voltage
Is a radio interference suppression filter required?
Radio interference suppression A (industrial application)

10.3.6 Utilization Classes

10-20
Type
Screw-type terminals
• Solid
• Finely stranded with cable end sleeve
• AWG conductors
- solid or stranded
- Finely stranded with cable end sleeve
• Connecting screws
- Tightening torque
Spring-type terminals
• Solid
• Finely stranded with cable end sleeve
• AWG conductors, solid or stranded
Regulation DIN EN 60947-4-1 (VDE 0660 Part 102), and/or IEC 60947-4-1
differentiate two utilization classes designated as "Utilization class 1" and "Utilization
class 2". With both utilization classes, the short-circuit to be controlled is safely
switched off. The only difference is the degree of damage to the device after a short-
circuit.
Utilization class 1 The fuseless load feeder can be inoperative after each short-circuit tripping. Damage to the contactor and the
ToC
1
overload release is permissible. With 3RA1 load feeders, the circuit breaker itself always has utilization category 2.
After a short-circuit tripping, there must be no damage to the overload release or any other part. The 3RA1 fuseless
ToC
Utilization class 2
load feeder can be restarted without any components needing to be replaced. Only welding of the contactor contacts
2
is permissible, as long as they can be separated easily without any noticeable damage.
These utilization classes are highlighted in the Technical Data by an orange background.
3RW44 ..
2
mm 2 x (0.5 ... 2.5)
2
mm 2 x (0.5 ... 1.5)
AWG 2 x (20 ... 14)
AWG 2 x (20 ... 16)
Nm 0.8 ... 1.2
lbf.in 7 ... 10.3
2
mm 2 x (0.25 ... 1.5)
2
mm 2 x (0.25 ... 1.5)
AWG 2 x (24 ... 16)
Standard Parameter
EN 61000-4-2 ±4 kV contact discharge, ±8 kV air discharge
EN 61000-4-3 Frequency range: 80 ... 1000 MHz with 80 % at 1 kHz
Severity 3, 10 V/m
EN 61000-4-6 Frequency range: 150 kHz ... 80 MHz with 80 % at 1 kHz
Interference 10 V
EN 61000-4-4 ±2 kV/5 kHz
EN 61000-4-5 ±1 kV line to line
±2 kV line to ground
EN 55011 Limit value of Class A at 30 ... 1000 MHz
EN 55011 Limit value of Class A at 0.15 ... 30 MHz
No
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06