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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
PTC-resistor relays type MS
1 PTC-resistor (thermistor) set, each 1...6 PTC-
sensors
short-circuit monitoring of sensor-circuit
output-relay with 1 or 2 change-over contacts (co)
2 LEDs for ON and ALARM
K-housing,vertically arranged terminals
housing 22.5 mm wide
assembly on DIN-rail or with 2 screws M4 (option)
UL Recognized Component
Option:
- other suppy-voltages
Part numbers:
1 change-over 2 change-over
T222445 T222455 AC 220-240 V
T222451 AC/DC 24 V
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PTC-Resistor-Relay Type MS(R)220KA
Single PTC-Circuit, ATEX-Approval according to Directive 2014/34/EU
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Us = supply voltage
S1 = pushbutton OFF
S2 = pushbutton ON
S3 = external reset
H1 = trip alarm
F1 - F4 = fuses
K1 = contactor
1) only version with 2xCO
2) only MSR
Technical Data
Rated supply-voltageUs
connectable PTC-resistors
switching point
output relay
type of contaxt
test conditions
rated ambient temperature
dimensions (h x w x d)
attachment
protection housing/terminals
weight
AC 220 - 240 V ± 10 % 50/60 Hz ≤ 2 VA
AC/DC 24 V, AC ± 10 % DC 21- 30 V < 2 VA, without
potential separation
1...6 in series according toDIN 44081 or 44082
< 4000 Ω
1 or 2 change-over contacts (co)
type 2 see "general technical information"
see "general technical information"
-20...+55 °C
design K: 75 x 22,5 x 110 [mm]
on 35 mm DIN-rail or with 2 screws M4 (option)
IP 30 / IP 20
app. 150 g
Same execution as MS220KA,
additionally with electronic reclo-
sing lock. An alarm is stored until
a reset is made.
ATEX-approval according to
directive 2014/34/EU
SIL 1 according to IEC 61508
PL c according to ISO 13849
electronic reclosing lock (dis-
connectable)
integrated RESET-button
link for external reset
automatic reset at voltage
recovery
LEDs for power-on (green)
and alarm (red) in reset-
button
UL Recognized Component
Option:
- other suppy-voltages
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PTC-relay for the application
as a protection device against
inadmissible heating up at elec-
trical equipment in areas with
explosive gases (zones 1 and
2) and areas with combustible
dust (21 and 22), e.g. for di-
rect temperature-monitoring of
explosion-proof motors EEx e
and EEx d.
Vertically arranged terminals.
Each terminal remains accessib-
le even if all others are already
occupied.
ATEX-approval according to
directive 2014/34/EU
SIL 1 according to IEC 61508
PL c according to ISO 13849
2016-11-28
II (2) G [Ex e] [Ex d] [Ex px]
II (2) D [Ex t] [Ex p]
II (2) G [Ex e] [Ex d] [Ex px]
II (2) D [Ex t] [Ex p]
Part numbers:
2 change-over
T222475 AC 220-240 V
T222471 AC/DC 24 V
T222473 AC 110-120 V
(without cURus) T222476 AC 380-415 V
MS220KA
MSR220KA