Westermo RD-48 - Manual (Page 17)

17 6153-2004
Model description RD-48 LV RD-48 LV TEMP RD-48 HV
Rated voltage 12–48 VDC 95–240 VAC
110–250 VDC
Operating voltage 9.6–57.6 VDC 85.5–264 VAC
88–300 VDC
Rated current 300 mA 50 mA
Rated frequency – 48–62 Hz
Polarity Reverse polarity protected Polarity independent
Connection 2-position screw terminal 3-position screw terminal
Connector size 0.2 – 2.5 mm² (AWG 24-12)
Fuse To be externally fused.
4. Specifications
4.1 Connections
Power interface
RS-422/485 interface – Line A
Electrical specification
RS-422/485
Data rate 300 bit/s – 1.5 Mbit/s
Connection 4-position screw terminal
Connector size 0.2 – 2.5 mm² (AWG 24-12)
Circuit type TNV-1
RS-422/485 interface – Line B
Electrical specification
RS-422/485
Data rate 300 bit/s – 1.5 Mbit/s
Connection 4-position screw terminal
Connector size 0.2 – 2.5mm² (AWG 24-12)
Circuit type TNV-1
4.2 Insulation between interfaces
Power (RD-48 HV) to all other 3.0 kV RMS @ 50Hz and 60 s duration
Power (RD-48 LV) to all other 1.0 kV RMS @ 50Hz and 60 s duration
Line-A to Line-B 1.5 kV RMS @ 50Hz and 60 s duration
4.3 Climatic environment
Temperature, operating 5 to 55°C
–40 to 70°C (TEMP version)
Temperature, storage and transportation –40 to 70°C
Relative humidity, operating 5 to 95% (non-condensing)
Relative humidity, storage and transportation 5 to 95% (condensation allowed
outside packaging)