Enclosure Class; Ingress Protection - ABB RET650 Technical Manual

1MRK 504 135-UEN A
19.8
19.9
Technical manual
Type Value
Supported bit rates 300, 600, 1200, 2400,
4800, 9600, 19200,
38400, 57600, 115200
Maximum number of 32
650 IEDs supported on
the same bus
Max. cable length 925 m (3000 ft)
Table 549: Serial rear interface
Type
Serial port (X9)
Table 550: Optical serial port (X9)
Wave length Fibre type
820 nm MM 62,5/125 µm
glass fibre core
820 nm MM 50/125 µm
glass fibre core
1) Maximum allowed attenuation caused by fibre

Enclosure class

Ingress protection

Table 551: Ingress protection
Description
IED front
IED rear
IED sides
IED top
IED bottom
Conditions
-
-
Cable: AWG24 or better, stub lines shall be
avoided
Counter connector
Optical serial port, type ST for IEC 60870-5-103
and DNP serial
Connector
Permitted path attenuation
ST 6.8 dB (approx. 1700m length with 4 db /
km fibre attenuation)
ST 2.4 dB (approx. 600m length with 4 db /
km fibre attenuation)
Value
IP 54
IP 20
IP 40
IP 40
IP 20
Section 19
Technical data
1)
619