3UG4622-1AW30 SIEMENS, 3UG4622-1AW30 Datasheet - Page 82
3UG4622-1AW30
Manufacturer Part Number
3UG4622-1AW30
Description
RELAY, MONITOR, 22.5MM
Manufacturer
SIEMENS
Series
3UG46r
Datasheet
1.3UG4622-1AW30.pdf
(114 pages)
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
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3UG Monitoring Relays for Electrical and Additional Measurements
Level monitoring
Overview
The 3UG35 01 level monitoring relay is used together with the
2- or 3-pole sensors to monitor the levels of conductive liquids.
Function
The principle of operation is based on measuring the electrical
resistance of the liquid between two immersion sensors and a
reference terminal. If the measured value is lower than the
sensitivity set at the front, the output relay changes its switching
state. In order to exclude electrolytic phenomena in the liquid,
the sensors are supplied with alternating current.
Two-level control: the output relay changes its switching state as
soon as the liquid level reaches the maximum sensor, while the
minimum sensor is submerged. The relay returns to its original
switching state as soon as the minimum sensor no longer has
contact with the liquid.
For safe resetting, the supply voltage must be interrupted for
at least 0.5 s (T3).
The delay times T1 and T2 of the output relay have not been
included in the diagram in order to enhance clarity.
7/82
Monitoring Relays
Siemens LV 1 T · 2006
Note:
It is also possible to connect other resistance sensors to the Min
and Max terminals in the range 5 to 100 kW, e.g. photoresistors,
temperature sensors, encoders based on resistance etc.
The monitoring relay can therefore also be used for other
applications apart from monitoring the levels of liquids.
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