PTC šiluminė relė MSF 220 V / VU tipo
  • PTC šiluminė relė MSF 220 V / VU tipo

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Gamintojas: ZIEHL

PTC šiluminė relė MSF 220 V / VU tipo

for Dry-Transformers, 3 PTC-Circuits
MSF 220 V/VU
The MSF 220 V is particularly suitable for the temperature monitoring at dry transformers.
3 PTC-circuits with different nominal response temperatures (NRT) can be connected to this
unit, one for controlling an fan (forced cooling) and two for alarms.
Each PTC-circuit is monitored for break and short circuit. This reduces the probability of false
3 PTC-circuits
MSF 220 VU for universal
supply voltage AC/DC 24-
240 V
intelligent control of fan (relay
K0, 1 normally-open contact)
ALARM 1 in closed-circuit
current mode (relay K1, 1
change-over contact) for prealarm.
Signals also error in
any sensor and interruption
of supply voltage.
ALARM 2 in operation current
mode (relay K2, 1 changeover
contact). No signal when
switching on ond off the supply
all output relays potentially
separated from each other.
monitoring of sensor lines
TEST-button (stop possible
before ALARM 2)
simple testing with disconnectable monitoring of
break and short-circuit (for 10 minutes)
LEDs for ON, sensor error, Fan, ALARM 1 and
plug-in terminals
housing for mounting on DIN-rail
Order numbers:
MSF 220 V
AC 220-240 V
T 221738
MSF 220 VU
AC / DC 24 -240 V
T 221737

Technical data
Rated supply voltage US
AC 220 - 240 V, ± 10 %, 50/60 Hz, ≤3 VA
AC/DC 24 - 240 V, AC ± 15 % < 3 VA
connectable PTC resistors
3 x 1... 6 PTC according to DIN 44 081 or 44 082
switching point
output relays
2 x 1 change-over contacts, 1 normally-open contact
type of contact
Type 2
rated ambient temperature
-20...+55 OC
dimensions(h x w x d)
casingV 4: 90 x 70 x 58 [mm]
on 35 mm DIN rail according to DIN EN 50 022
or with screws M4
protection housing / terminals
IP30 / IP20
320 g

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