PTC-Resistor Relay MSF220V / MSF220VU
  • PTC-Resistor Relay MSF220V / MSF220VU

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Manufacturer: ZIEHL

PTC thermal relay type MSF220V / MSF220VU

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 a fan (forced cooling) and two for alarms. Each PTC-circuit is monitored for break and short circuit. This reduces the probability of false alarms.
  • 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 pre alarm. 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 and off the supply voltage
  • 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 ALARM 2
  • UL recognized component
  • plug-in terminals
  • housing for mounting on DIN-rail or wall-mount
  • mounting height 55 mm

Part number:
MSF220V T221738 AC 220-240 V
MSF220VU T221737 AC / DC 24-240 V
 



Technical data


Rated supply voltage Us AC 220 - 240 V ± 10 %, 50/60 Hz ≤ 3 VA
AC/DC 24 V, ± 15 %, < 3 VA
Connectable PTC resistors 3 x 1...6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Switching point <4000 Ω
Output relay 2 x 1 change-over-contact (co), 1 normally-open contact (no)
Type of contact Type 2 (see general technical information)
Test conditions see general technical information
Rated ambient temperature -20 ... + 55 ° C
Dimensions h x w x d Design V4: 90 x 70 x 58 [mm]
Attachment on 35 mm DIN rail according to EN 60 715 or screws M4 (option)
Protection Housing/Terminals IP30 / IP20
Weight approx. 320 g
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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 a fan (forced cooling) and two for alarms. Each PTC-circuit is monitored for break and short circuit. This reduces the probability of false alarms.
  • 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 pre alarm. 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 and off the supply voltage
  • 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 ALARM 2
  • UL recognized component
  • plug-in terminals
  • housing for mounting on DIN-rail or wall-mount
  • mounting height 55 mm

Part number:
MSF220V T221738 AC 220-240 V
MSF220VU T221737 AC / DC 24-240 V
 



Technical data


Rated supply voltage Us AC 220 - 240 V ± 10 %, 50/60 Hz ≤ 3 VA
AC/DC 24 V, ± 15 %, < 3 VA
Connectable PTC resistors 3 x 1...6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Switching point <4000 Ω
Output relay 2 x 1 change-over-contact (co), 1 normally-open contact (no)
Type of contact Type 2 (see general technical information)
Test conditions see general technical information
Rated ambient temperature -20 ... + 55 ° C
Dimensions h x w x d Design V4: 90 x 70 x 58 [mm]
Attachment on 35 mm DIN rail according to EN 60 715 or screws M4 (option)
Protection Housing/Terminals IP30 / IP20
Weight approx. 320 g
Less
Read more