Monitoring and Control Devices
Introduction
The advantages at a glance
3RP
7PV
3UG45 11
Order No.
3UG46 14
Page
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3RP, 7PV timing relays
3RP15 timing relays in industrial enclosure,
22.5 mm
• Low-cost solution with monofunctions such as response
delay, off-delay, clock-pulse, wye-delta function and
multifunction
3RP15
3RP20
• Wide-range voltage designs
3RP20 timing relays, 45 mm
• The solution for small mounting depths
• The low mounting height reduces the tier spacing
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7PV timing relays for panel mounting
• Digital variant
7PV
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3RT19 timing relays for mounting onto contactors • Saves space because the relay is mounted onto the
3RT19
contactor
• Wiring advantages thanks to direct contacting
with contactor
3UG monitoring relays for electrical and additional measurements
Line monitoring
Phase sequence
• Low-cost solution for monitoring the phase sequence
3UG45 11
3UG45 12
3UG45 13
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Phase sequence, phase failure, phase unbalance • Wide voltage range from 160 ... 690 V
Phase sequence, phase failure, phase unbalance • Analog adjustable
and undervoltage
• Wide voltage range from 160 ... 690 V
• Digitally adjustable with LCD display for indication of
ACTUAL value and device status
• Wide voltage range from 160 ... 690 V
3UG46 14
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Phase sequence, phase failure, phase unbalance • Digitally adjustable with LCD display for indication of
3UG46 15
3UG46 16
3UG46 17
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and overvoltage and undervoltage
ACTUAL value and device status
• Wide voltage range from 160 ... 690 V
Phase sequence, phase and N conductor failure,
phase unbalance, overvoltage and undervoltage
Automatic correction of the direction of rotation in
case of wrong phase sequence, phase failure,
phase unbalance, overvoltage and undervoltage
Automatic correction of the direction of rotation in
case of wrong phase sequence, phase and
N conductor failure, phase unbalance, overvoltage
and undervoltage
3UG46 18
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Voltage monitoring
Voltage monitoring with internal power supply for • Digitally adjustable with LCD display for indication of
3UG46 33
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overvoltage and undervoltage
ACTUAL value and device status
• Wide measuring ranges
Voltage monitoring with auxiliary voltage for
overvoltage and undervoltage
3UG46 31/32
• Variant for wide voltage range
Current monitoring
Current monitoring with auxiliary voltage for
overvoltage and undervoltage
• Digitally adjustable with LCD display for indication of
ACTUAL value and device status
• Wide measuring ranges
3UG46 21/22
3UG30 14
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• Variant for wide voltage range
Power factor monitoring (motor load monitoring)
Monitoring relay for overshoot and undershoot
monitoring with internal power supply
(window monitoring)
• Upper and lower threshold value can be adjusted
separately
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Insulation resistance
Monitoring of the insulation resistance for
ungrounded AC or DC networks from 10 ... 110 kW • With or without memory
• Test button
3UG30 81,
3UG30 82
• Switchable measuring range
Level monitoring
Fill level and resistance
• As single-step or two-step controls for inlet or outlet
3UG35 01
monitoring of conducting liquids or as
resistance threshold switch
• Variable, wide range from 5 ... 100 kW
• UNDER/OVER adjustable
Speed monitoring
Underspeed monitoring
• Together with a sensor for monitoring continuous pulses
• With or without memory
• Adjustable ON delay
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• 1, 2 and 3 changeover contacts
• Hard gold-plated contacts in combination and wide voltage
range versions
Siemens LV 1 T · 2006
7/3
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