PTC-Resistor-Relay Type MS40ZT
  • PTC-Resistor-Relay Type MS40ZT

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Manufacturer: ZIEHL

PTC thermal relay type MS40ZT

The PTC-resistor relay MS 40 ZT monitors particularly engines at elevator cars and lifts. A pulse input monitors the movement of the elevator car as long as the motor is switched on.
  • watchdog timing adjustable 5 - 50 s
  • temperature monitoring with PTC-resistor
  • integrated RESET-button
  • LED for temperatur alarm
  • LED for watchdog alarm

At elevator systems the temperature of the motor and the travelling motion have to be monitored. With the car at rest and contact between terminals 2 and 5 closed, the integrated relay picks up (terminals 8, 9 connected). The time monitoringstarts with the opening of the contact between terminals 2 and 5. Then the pulse input between terminals 3 and 6 must continously open and closeduring travelling motion. When the pulse stops or the nominal response temperature of the PTC-resistor is exceeded, the relay releases. Each disconnection is locked. A restart by pressing the RESET-button is only possiblewith closed contact between terminals 2 and 5 and low-resistive sensor.
Part number:

T22112 AC 220-240 V



Technical data


Rated supply voltage Us AC 220 - 240 V ±10 %, 50/60 Hz, 3VA
Connectable PTC resistors 1... 6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Switching poin <4000 Ω
Output relay change-over-contact (co)
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) attachment Design S 12: 82 x 42 x 121 [ mm ] on 35 mm DIN rail according to DIN EN 50 022 or with screws M4
Attachment on 35 mm DIN rail according to EN 60 715 or screws M4
Protection Housing/Terminals IP30 / IP20
Weight approx. 280 g
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The PTC-resistor relay MS 40 ZT monitors particularly engines at elevator cars and lifts. A pulse input monitors the movement of the elevator car as long as the motor is switched on.
  • watchdog timing adjustable 5 - 50 s
  • temperature monitoring with PTC-resistor
  • integrated RESET-button
  • LED for temperatur alarm
  • LED for watchdog alarm

At elevator systems the temperature of the motor and the travelling motion have to be monitored. With the car at rest and contact between terminals 2 and 5 closed, the integrated relay picks up (terminals 8, 9 connected). The time monitoringstarts with the opening of the contact between terminals 2 and 5. Then the pulse input between terminals 3 and 6 must continously open and closeduring travelling motion. When the pulse stops or the nominal response temperature of the PTC-resistor is exceeded, the relay releases. Each disconnection is locked. A restart by pressing the RESET-button is only possiblewith closed contact between terminals 2 and 5 and low-resistive sensor.
Part number:

T22112 AC 220-240 V



Technical data


Rated supply voltage Us AC 220 - 240 V ±10 %, 50/60 Hz, 3VA
Connectable PTC resistors 1... 6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Switching poin <4000 Ω
Output relay change-over-contact (co)
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) attachment Design S 12: 82 x 42 x 121 [ mm ] on 35 mm DIN rail according to DIN EN 50 022 or with screws M4
Attachment on 35 mm DIN rail according to EN 60 715 or screws M4
Protection Housing/Terminals IP30 / IP20
Weight approx. 280 g
Less
Read more