3UG4633-1AL30 SIEMENS, 3UG4633-1AL30 Datasheet - Page 14

• 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
Power factor and active current monitoring
Overview
Function
3UG46 41 monitoring relays
The 3UG46 41 monitoring relay is self-powered and serves the
single-phase monitoring of the power factor or performs
overshoot, undershoot or window monitoring of the active
current depending on how it is parameterized.
The load to be monitored is connected in front of the IN terminal.
The load current flows over the IN and Ly/N terminals. The
setting range for the power factor is 0.1 ... 0.99 and for
the active current I
If the supply voltage is switched on and no load current is
flowing, the display indicates I < 0.2 and a symbol for overshoot,
undershoot or window monitoring.
If the motor is now switched on and the current exceeds 0.2 A,
the set ON-delay time begins. During this time, an undershoot-
ing or overshooting of the set limit values will not led to a relay
response of the changeover contact.
If the operational flowing active current and/or the power factor
value falls below or exceeds the respective set threshold value,
the spike delay begins. When this time has expired, the relay
changes its switch position. The relevant measured variables for
overshooting and undershooting in the display flashes.
The relay operates either according to the open-circuit or
closed-circuit principle.
If the device is set to Auto-RESET (Memory = No), depending on
the set principle of operation, the switching relay returns to its
initial state and the flashing ends when the hysteresis threshold
is reached.
If manual reset is selected in the menu (Memory = Yes), the
switching relay remains in its current switching state and the
current measured value and the symbol for undershooting and
overshooting continues to flash, even when the measured
variable reaches a permissible value again. This stored fault
status can be reset by pressing the UP▲ and DOWN▼ key
simultaneously for 2 seconds, or by switching the supply voltage
off and back on again.
7/74
Monitoring Relays
Siemens LV 1 T · 2007
res
0.2 ... 10 A.
© Siemens AG 2007
The 3UG46 41 power factor and active current monitoring
device enables the load monitoring of motors.
Whereas power factor monitoring is used above all for monitor-
ing no-load operation, the active current monitoring option can
be used to observe and evaluate the load factor over the entire
torque range.
With the closed-circuit principle selected
Display outside the measuring range limits
Overshooting of active current
res
= 0
11/14
11/12
21/24
21/22
Lx-Ly/N
= 0,2 A
11/14
11/12
21/24
21/22
onDelay
= 0
onDelay
onDelay
Delay
< 0,2 A
>
res
Hysteresis