ABB GD9924BE inverter control cabinet logic board
Table 9: Data communication
Transmission mode Fibre-optic serial bus
Data code ASCII
Data transfer rate, selectable 4800 or 9600 Bd
Electrical/optical bus connection module powered
from the host relay
for plastic core cables SPA-ZC 21BB
for glass fibre cables SPA-ZC 21MM
Electrical/optical bus connection module powered
from the host relay or from an external power source
for plastic core cables SPA-ZC 17BB
for glass fibre cables SPA-ZC 17MM
Table 10: Tests and standards
Test voltages Dielectric test voltage (IEC 60255-5) 2 kV, 50 Hz, 1 min
Impulse test voltage (IEC 60255-5) 5 kV, 1.2/50 µs, 0.5 J
Insulation resistance (IEC 60255-5) >100 MΩ, 500 V dc
Interference tests High frequency disturbance test
(IEC 60255-22-1), common mode
2.5 kV, 1 MHz
High frequency disturbance test
(IEC 60255-22-1), differential mode
1.0 kV, 1 MHz
Electrostatic discharge (IEC 60255-22-2
and IEC 61000-4-2), air discharge
8 kV
Electrostatic discharge (IEC 60255-22-2
and IEC 61000-4-2), contact discharge
6 kV
Fast transients (IEC 60255-22-4 and
IEC 61000-4-4), power supply inputs
4 kV
Fast transients (IEC 60255-22-4 and
IEC 61000-4-4), other inputs
2 kV
Environmental conditions Service temperature range -10…+55°C
Long term damp heat withstand
(IEC 60068-2-3)
<95%, +40°C, 56 d/a
Temperature influence 0.1%/°C
Damp heat test (IEC 60068-2-30) 93…95%, +55°C, 6 cycles
Transport and storage temperature range
(IEC 60068-2-8)
-40…+70°C
Degree of protection by enclosure of flush
mounting relay case (IEC 60529)
IP 54
Weight of fully equipped relay ~6 kg

When ordering, please specify:
Ordering information Ordering example
1. Type designation and quantity SPAD 346 C, 5 pieces
2. Order number RS 621 002-AA
3. Rated values In=5 A, fn=50 Hz
4. Auxiliary voltage Uaux =110 V dc
5. Accessories -
6. Special requirements -
Order numbers
Stabilized differential relay SPAD 346 C_
SPAD 346 C complete RS 621 002-AA, CA, DA, FA
SPAD 346 C1, incl. modules SPCD 3D53 and
SPCD 2D55
RS 621 003-AA, CA, DA, FA
SPAD 346 C2, incl. modules SPCD 3D53 and
SPCJ 4D28
RS 621 004-AA, CA, DA, FA
SPAD 346 C3, incl. module SPCD 3D53 RS 621 005-AA, CA, DA, FA
SPAD 346 C4, incl. modules SPCD 2D55 and
SPCJ 4D28
RS 621 006-AA, CA, DA, FA
SPAD 346 C5, incl. module SPCD 2D55 RS 621 007-AA, CA, DA, FA
SPAD 346 C6, incl. module SPCJ 4D28 RS 621 008-AA, CA, DA, FA
The last two letters of the order number indicate the
rated frequency fn and the auxiliary voltage Uaux of
the relay as follows:
AA equals fn = 50 Hz and Uaux = 80…265 V ac/dc
CA equals fn = 50 Hz and Uaux = 18…80 V dc
DA equals fn = 60 Hz and Uaux = 80…265 V ac/dc
FA equals fn = 60 Hz and Uaux = 18…80 V dc