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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
o 0...60s (adjustable) after the
current in all transformers is 0.
Application:
The current relay STW81V is
particularly suitable for the central
control of slide valves in suction
plants, which are to be operated
dependent on operating condition
of individual machines. It can
control a central suction at the
same time.
Current relay STW81V
8-channel, single evaluation + OR-circuit
NEW: adjustable switching point 0,5 - 5 A
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The current relay STW81V is an
8-channel AC current relay, designed
for controlling of suction plants e.g.
in the timber and plastics processing
industry.
When there is an AC-current >1A
through one of up to 8 connected
transformers type STWA1, the ap-
propriate relay K1...K8 (1 x co) picks
up and opens the slide valve of the
machine. At the same time the relay
K9 starts the central suction.
Relays K1...K8 switch o 10s after
the current ow through the appro-
priate transformer is 0. K9 switches
Rated supply voltage Us
Output relay
Type of contact
Test conditions
Rated ambient temperature
range
Transformer input
Function
Overload cap. continuous max.
10 s
Switching point on
Switch-on delay
Switch-o delay
Dimensions (h x w x d)
Attachment
Protection housing / terminals
Weight
AC/DC 24 - 240 V, 0/50/60 Hz, < 2 W, < 6 VA
DC: 20,4... 297 V, AC: 20 ... 264 V
8 + 1 change-over contacts (co)
type 2 see "general technical informations"
see "general technical informations"
-20°C…+55°C
1...8 type STWA1, or STWA1H
single/OR-circuit
100 A / 300 A
adjustable 0,5...5 A
approx. 0,5s
10 s / 0 - 60 s
design V 8 / 90 x 140 x 58 [mm]
on 35 mm DIN rail according to DIN EN 50 022 or
with screws M4 (option)
IP 30 / IP 20
approx. 330 g
Technical Data
2018-06-20
Controls for Suction Plants Type STW
STW81V
Part number:
S225516.1 AC/DC 90-240 V
single evaluation of 8 inputs with STWA1
single evaluation of 8 inputs with current-sensor S1
inputs for 8 potential-free contacts
OR-evaluation of all circuits (K9)
9 output relays
LED display for relays / inputs
Switching point adjustable 0,5 ...5 A
switch-o delay of K9 adjustable 0 - 60 seconds
switch-o delay single relays 10 s
last relay: K9 + 20 s
Power consumption < 1W (in standard-operation
with STWA1)
