3UG4622-1AW30 SIEMENS, 3UG4622-1AW30 Datasheet - Page 88

• Manufacturer Part Number: 3UG4622-1AW30
• Description: RELAY, MONITOR, 22.5MM
• Manufacturer: SIEMENS
• Series: 3UG46r

Specifications of 3UG4622-1AW30

• Contact Configuration: SPCO
• Power Consumption: 4VA
• Supply Voltage Max: 240VAC
• Contact Current Max: 3A
• Relay Mounting: DIN Rail
• Coil Voltage Vac Nom: 230V
• External Depth: 86mm
• Coil Frequency Max: 60Hz
• Coil Operating Frequency Min: 50Hz

3RS10, 3RS11 Temperature Monitoring Relays
General data
Connection of thermocouples
Based on the thermo-electrical effect, a differential temperature
measurement will be performed between the measuring point
and the signal evaluator.
This principle assumes that the signal evaluator knows the
temperature at the clamping point (T2). For this reason, the
3RS11 temperature monitoring relay has an integral compen-
sator that determines this comparison temperature and builds it
into the result of the measurement. Therefore, the thermal
sensors and cables must be insulated.
The absolute temperature is calculated from the ambient
temperature of the signal evaluator and the temperature
difference measured by the thermocouple.
Temperature detection is therefore possible (T1) without needing
to know the precise ambient temperature of the clamping point
at the signal evaluator (T2).
The connecting cable is only permitted to be extended using
connecting leads that are made from the same material as the
thermocouple. If a different type of conductor is used, an error
will result in the measurement.
You can find more information on the Internet at:
http://www.feldgeraete.de/76/produkte/fuw.html
http://www.ephy-mess.de
or from
EPHY-MESS GmbH (see Appendix, External Partners)
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Monitoring Relays
Siemens LV 1 T · 2006
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Function
Once the temperature has reached the set threshold J1, the
output relay K1 changes its output state as soon as the set time
t has elapsed (K2 responds in the same manner to J2). The time
delay can only be adjusted with digital units (on analog units,
t = 0).
The relays return to their original state as soon as the
temperature reaches the set hysteresis value.
Temperature overshoot
Closed-circuit principle
J
Temperature undershoot
Closed-circuit principle
J
J
J
t
t
t
t
t
t