PTC-Resistor-Relay Type MS40ZT

PTC-Resistor-Relay for elevators, with time monitoring

PTC-Resistor-Relay Type MS40ZT

Part number

AC 220 - 240 V

Product description

 

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.

 

Technical Data

Rated supply voltage US

.......

AC 220 - 240 V ±10 %, 50/60 Hz, 3VA

 

connectable PTC resistors

.......

1... 6 PTC according to DIN 44 081 or 44 082

 

switching point

.......

< 4000 Ω

 

output relay

.......

1 change-over contact (co)

 

type of contact

.......

type 2 (see general technical informations)

 

test conditions

.......

see general technical informations

 

rated ambient temperature range

.......

-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

 

protection housing / terminals

.......

IP 30 / IP 20

 

weight

.......

approx. 280 g