SVS18 Datasheet, PDF (1/6 Pages) ETAL Group – Systematic integration of overcurrent protection, power distribution and signalling on one board

Power Distribution System SVS18
Description
The power distribution system SVS18 optimises the DC 24 V distribution
in automation and process control, in the production area of the
chemical industry and in power plants. The power distribution system
SVS18 DIN rail mounting distributes all voltage potentials supplied
by a 24 V power supply (SMPS) onto 10 ways F1 to F10 (arranged
from right to left). The system offers 2 integral redundancy diodes in
each protected load output and selectively protects the connected
loads such as controls, transformers, actuators, magnetic yoke sub-
assemblies, bus modules etc. by means of the circuit breaker fitted.
With a max. total current of 25 A and a typical load current of 3 A per
way (max. 6 A in limited continuous duty) the SVS18 provides ease
of distribution and sub-distribution in short-circuit-limited DC 24 V
applications. All auxiliary contacts (make contacts) of the plugged-in
circuit breakers are connected in series and allow group signalling in
accordance with the closed-circuit principle. The 10 protected »L+«
load outputs with 2 redundancy diodes per way significantly reduce
the otherwise standard wiring time. All terminals of the DC 24 V
supply, load outputs with 0 V return conductor as well as the signalling
terminals are screwless spring-loaded terminals.
Suitable for the following E-T-A circuit breaker types:
electronic circuit breaker
ESS20-003-DC24V-
max. 6A
electronic circuit protector
ESX10-103-DC24V-
max. 6A
Technical data (T_amb = 25 °C, U_B = DC 24 V)
Application
Modular power distribution system for short circuit current limited
DC 24 V – applications.
Use with switch-mode power supply, e.g. type Quint DC 24 V / 20 A
(manufactured by Phoenix Contact)
Supply
Features and benefits
l Systematic integration of overcurrent protection,
power distribution and signalling on one board
l Power distribution and selective protection of DC 24 V load
circuits fed by a single power supply (L1+ and L2+ are bridged)
or by two separate power supplies (L1+, L2+)
l Clear distribution concept, two each redundancy diodes (typically
1.5 A, max. 3 A per diode) connected in parallel integral in each
load output
l Terminal block for group signalling (make contacts)
l Profitability through significant reduction of wiring time
l Reduced time and expenses for planning, design and installation
l Ease of maintenance, diagnosis and system extension
Rated voltage:
Total current:
Terminals
F-positions
DC 24 V (18...30 V), 2 supply potentials
L1+ and L2+ possible
Caution: L1+ and L2+ are bridged when
delivered
max. 25 A, continuously
DC 24 V (+) = X21 L1+/L1+
DC 24 V (+) = X21 L2+/L2+
DC 24 V (-) = X21 L-/L-/L-
L1+: supply potential for F1/F3/F5/F7
L2+: supply potential for F2/F4/F6/F8/F9/F10
L-: 0 V return conductor for L1+ and L2+
screwless plug-in terminal block, 7-pole
max. cable cross section 0.75...10 mm²
Ordering information
10 slots F1 to F10 for electronic circuit breakers,
prepared for types ESS20-003, ESX10-103:
placed from right (F1) to left (F10)
Type
Input
F1, F3, F5, F7:
SVS18 power distribution system for ESS20-003, ESX10-103
input connected to 24 V-voltage L1+
l For short circuit current limited DC 24
F2, F4, F6, F8, F9, F10:
V-applications
input connected to 24 V-voltage L2+
l Max. 25 A cont. load
l Integral group signalling terminals X31,
DC 24 V / max. 0.5 A , have to be protected separately
l Incl. 1 isolated bridge for terminal L1 and L2
pushed in upon receipt
l Incl. 10 isolated bridges for load outputs, parallel
connection of diodes Dx.1 and Dx.2, pushed in upon
receipt
l Accessories: jumpers SB-11-P1-01-1-1A
Output L1+
Output L2+
F1, F3, F5, F7:
Output via redundancy diodes
to X1/L1, X3/L1, X5/L1, X7/L1
(terminals 1+ , 2+ each)
6
F2, F4, F6, F8, F9, F10:
Output via redundancy diodes
to X2/L2, X4/L2, X6/L2, X8/L2, X9/L2, X10/L2
(terminals 1+ , 2+ each)
(for free slots), order separately
Please plug jumper SB-11-P1-01-1-1A into
 Version, max. number of circuit breakers on
the power distribution system
free slots (to be ordered separately, see
accessories)
10 circuit breakers (F1...F10)
Fitted version, load output and signalling terminals
C10 standard: completed fitted with push-in-terminals
(max. 2.5 mm², without wire end ferrule
Caution:
When using an electronic circuit breaker rated > 3 A, the
redundancy diodes have to be connected in parallel. The
jumper for connecting the diodes in parallel has to be
plugged in.
SVS18 - 10 - C10 ordering example
1646
Accessory: jumper, see Accessories
www.e-t-a.de
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