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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
Current relay in OR evaluation
with 8 inputs, designed e.g. for
controlling of suction plants in the
timber and plastics processing
industry.
When there is an AC-current >1
A through one of up to 8 connec-
ted transformers STWA 1, the
integrated relay (1co) picks up.
When all currents are 0, the relay
releases with a delay of approx.
10s. This enables a run-after of
the central suction.
8 inputs
OR-evaluation
relay picks up if at least 1 input
is activated
operating value approx. 1 A
turn-o delay approx. 10 s
not necessary inputs remain
open
options:
- switch-on delay 3 s
- without switch-o delay
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Current-Relay STW1K
AC-Detection, OR-Evaluation of 1-8 Transformers
0123 781615184 5 6 A2 A1
=
1 .... 8 Stromwandler/ current transformer STWA 1(H)
STWA1H (+) = 1...8
STWA1H (-) = 0
U
s
Absaugung/
central suction
L1
L2
L3
≥1
M
3 ~
Maschine/
machine
STW1K
M
3 ~
Technical Data
Rated supply voltage Us
Transformer input
Overload cap.continous/max 10s
Function
Switching point on
Switching point o
Switch-o delay
Switch-on delay
Output relay
Type of contact
Test conditions
Rated ambient temperature
range
Dimensions (h x w x d)
Attachment
Protection housing / terminals
Weight
AC 220 - 240 V +10-15%, < 3 VA, 50/ 60 Hz
AC/DC 24 V, DC 21-30 V, AC 20,4-26,4 Hz
1…8, type STWA , order-number S 225201
100 A / 300 A
OR-evaluation
≤ AC 1 A
> AC 0,3 A
approx. 10 sec.
approx. 0,5 sec.
1 change-over contact (co)
type 2, see "general technical informations"
see "general technical informations"
-20°C…+55°C
Design K: 75 x 22.5 x 115 [ mm ]
on 35 mm DIN rail according to DIN EN 60715
or with screws M4 (option)
IP 40 / IP 20
approx. 140 g
Voltage Monitoring Type SW
2017-12-18
STW1K
Part numbers:
S225636 AC 220-240 V
S225658 AC/DC 24 V
