3UG4622-1AW30 SIEMENS, 3UG4622-1AW30 Datasheet - Page 87

• 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

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Overview
The 3RS10 and 3RS11 temperature monitoring relays can be
used for measuring temperatures in solid, liquid and gas media.
The temperature is sensed by the sensor in the medium,
evaluated by the device and monitored for overshoot or
undershoot or for staying within an operating range (window
function).
The range comprises adjustable analog units with one or two
threshold values, digital units to DIN 3440, which are also a good
alternative to temperature controls for the low-end range, and
digital units for up to 3 sensors which have been optimized for
monitoring large motors.
Design
The temperature monitoring relays comply with:
• IEC 60721-3-3 "Environmental conditions"
• IEC 60947-5-1; VDE 0660 "Low-voltage controlgear,
• EN 61000-6-4 "Basic technical standard for emitted
• EN 61000-6-2 "Basic technical standard for interference
• EN 50042 "Designations for terminals"
• UL/CSA
• DIN 3440 (3RS10 40, 3RS11 40, 3RS10 42, 3RS11 42).
Connection of resistance-type thermometers
2-wire measurement
When 2-wire temperature sensors are used, the resistances of
the sensor and wiring are added. The resulting systematic error
must be taken into account when the signal evaluator is
calibrated. A jumper must be clamped between terminals T2
and T3 for this purpose.
Wiring errors
The errors that are generated by the wiring comprise
approximately 2.5 K/W. If the resistance of the wiring is not known
and cannot be measured, the wiring errors can also be
estimated using the following table.
switchgear and systems – Electromechanical controlgear"
interference (Industry)"
immunity (Industry)"
I
3RS10, 3RS11 Temperature Monitoring Relays
Temperature drift depending on the length and cross-section of
the leads with PT100 sensors and an ambient temperature of
20 °C, in K:
3-wire measurement
To minimize the effects of the line resistances, a three-wire circuit
is often used. Using the additional wire, two measuring circuits
can be formed of which one is used as a reference. The signal
evaluator can then automatically calculate the line resistance
and take it into account.
Cable length
m
0
10
25
50
75
100
200
500
I
I
Cross-section
mm²
0.5
0.0
1.8
4.5
9.0
13.6
18.1
36.3
91.6
Monitoring Relays
0.75
0.0
1.2
3.0
6.0
9.0
12.1
24.2
60.8
Siemens LV 1 T · 2006
1
0.0
0.9
2.3
4.5
6.8
9.0
18.1
45.5
General data
1.5
0.0
0.6
1.5
3.0
4.5
6.0
12.1
30.2
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