17
Data transmission
Transmission mode
Fibre optic serial bus
Data code
ASCII
Data transfer rate, selectable
4800 Bd or 9600 Bd
Electrical/optical bus connection module
powered from the host relay
- for plastic core cables
SPA-ZC 21 BB
- for glass fibre cables
SPA-ZC 21 MM
Electrical/optical bus connection module
powered from the host relay or an external
power source
- for plastic core cables
SPA-ZC 17 BB
- for glass fibre cables
SPA-ZC 17 MM
Test voltages *)
Dielectric test voltage according to IEC 255-5
2.0 kV, 50 Hz, 1 min
Impulse test voltage according to IEC 255-5
5 kV, 1.2/50
µ
s, 0.5 J
Insulation resistance according to IEC 255-5
>100 M
Ω
, 500 V dc
Disturbance tests *)
High-frequency (1MHz) disturbance test
according to IEC 255-22-1, class III
- common mode
2.5 kV
- differential mode
1.0 kV
Fast transients according to IEC 255-22-4,
class III and IEC 801-4, level 4
- power supply inputs
4 kV, 5/50 ns
- other inputs
2 kV, 5/50 ns
Electrostatic discharge test according to
IEC 255-22-2 and IEC 801-2, class III
- air discharge
8 kV
- contact discharge
6 kV
Environmental conditions
Specified ambient service temperature range
-10 ... +55
o
C
Temperature influence on the operating values
of the relay over the specified ambient service
temperature range
< 0.2 %/
o
C
Long term damp heat withstand according
to IEC 68-2-3
< 95 % at 40
o
C for 56 d/a
Transport and storage temperature range
-40 ... +70
o
C
Degree of protecting by enclosure of the relay case
as per IEC 529 when panel mounted
IP 54
Mass of the relay
3.5 kg
*) The insulation and disturbance tests do not apply to the serial port, which is used for the bus
connection module only.
