MS40ZT, PTC-Resistor-Relay with time monitoring, AC 220-240 V, for elevators

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- Part number: T221120
PTC-Resistor-Relay for elevators, with time monitoring
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 VDE V 0898-1-401 (formerly DIN 44081/82)
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
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approx. 280 g
Input / measuered parameter: | Measuring input PTC, Digital input |
Outputs: | Alarms/relays |
Design: | Mount in switchgear cabinet |
Extras: | 1 sensor input |
Applications: | Protection of motors, Protection of pumps, Heat and power plants |