3UG4633-1AL30 SIEMENS, 3UG4633-1AL30 Datasheet - Page 2

• Manufacturer Part Number: 3UG4633-1AL30
• Description: RELAY, DIGITAL MONITORING, VOLTAGE
• Manufacturer: SIEMENS
• Series: 3UGr

Specifications of 3UG4633-1AL30

• Power Consumption: 2W
• Supply Voltage Max: 275V
• Relay Mounting: DIN Rail
• Control Voltage Type: AC / DC
• Contact Termination: Screw
• External Depth: 86mm
• External Length / Height: 110mm
• External Width: 22.5mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3UG Monitoring Relays for Electrical and Additional Measurements
Line monitoring
3UG45 13 monitoring relays
The 3UG45 13 line monitoring relay monitors three-phase net-
works with regard to phase sequence, phase failure, phase un-
balance of 20 % and undervoltage. The device has an internal
power supply and works using the closed-circuit principle. The
hysteresis is 5 %. The integrated response delay time is adjust-
able from 0 to 20 s and responds to undervoltage. If the direction
is incorrect, the device switches off immediately. Thanks to a
special measuring method, a phase failure is reliably detected
in spite of the wide voltage range from 160 to 690 V AC and
feedback through the load of up to 80 %. When the mains volt-
age is switched on, the green LED is lit. If the phase sequence
at the terminals L1-L2-L3 is correct, the output relay picks up.
If the phase sequence is wrong, the red LED flashes and the out-
put relay remains in its rest position. If a phase fails, the red LED
is permanently lit and the output relay drops.
Note:
The red LED is a fault diagnostic indicator and does not show the
current relay status. The 3UG45 13 monitoring relay is suitable
for line frequencies of 50/60 Hz.
Phase failure and undervoltage
Wrong phase sequence
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LED rd
3~U
Monitoring Relays
L1-L2-L3
n
Siemens LV 1 T · 2007
OFF
L2-L3
L3-L2-L1
LED rd
Phase loss
11/14
11/12
21/24
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ON
OFF
L1-L2-L3
Phase sequence
Delay
OFF
FLASH
-20%
OFF
ON
OFF
NSB0_01569
Hysteresis
© Siemens AG 2007
5%
3UG46 14 monitoring relays
The 3UG46 14 line monitoring relay has a wide voltage range
and an internal power supply. The device is equipped with a dis-
play and is parameterized using three buttons. It monitors three-
phase networks with regard to phase unbalance from 5 to 20 %,
phase failure, undervoltage and phase sequence. The hystere-
sis is adjustable from 1 to 20 V. In addition the device has
a response delay and ON-delay from 0 to 20 s in each case.
The integrated response delay time responds to phase unbal-
ance and undervoltage. If the direction is incorrect, the device
switches off immediately. Thanks to a special measuring
method, a phase failure is reliably detected in spite of the wide
voltage range from 160 to 690 V AC and feedback up to 80 %
through the load.
The 3UG46 14 monitoring relay can be operated on the basis of
either the open-circuit or closed-circuit principle and with
manual or auto RESET.
With the closed-circuit principle selected
Wrong phase sequence
Phase failure
Undervoltage
Unbalance
11/14
11/12
21/24
21/22
11/14
11/12
21/24
21/22
x-y
0%
11/14
11/12
21/24
21/22
onDelay
onDelay
L3-L2-L1
L1-L2-L3
11/14
11/12
21/24
21/22
> Asy
<
L2-L3
Delay
Delay
L1-L2-L3
Hysteresis
Hysteresis
2%