AutomationDirect PMRU-TL, PMRR-TL P User Manual
1-800-633-0405
For the latest prices, please check AutomationDirect.com.
Phase Monitor Relays
PMRU-TL
Phase Monitor Relays
Phase monitor relays provide protection against premature equipment
failure caused by voltage faults on 3-phase systems. All proSense phase
monitor relays are designed to be compatible with typical Wye or Delta
systems. Phase monitor relays protect against single phasing regardless
of any regenerative voltages.
PMRU-TL Series
The PMRU-TL Series phase monitor relays utilize a microprocessor
based design to provide protection against phase loss, phase reversal,
phase unbalance, undervoltage and overvoltage. The PMRU-TL is a
universal voltage product that works on any 3-phase system voltage
from 190V to 500V. These devices are designed to be compatible with
typical Wye or Delta systems. In Wye systems, a connection to a neutral
is not required. PMRU-TL Series products protect against unbalanced
voltages or single phasing regardless of any regenerative voltages.
The relay is energized when the phase sequence and all voltages are
correct. Any one of five fault conditions will de-energize the relay.
Re-energization is automatic upon correction of the fault condition. A
manual reset option is available if a momentary N.C. switch is wired to
the appropriate terminals. A multi-color LED indicates normal
and also provides specific fault
The PMRU-TL Series offers a variety of user-adjustable settings. The
percent phase unbalance is adjustable from 2% to 10%. The undervoltage drop-out can be set at 80% to 95% of operating voltage
(overvoltage setting is fixed at 110% of nominal). The adjustable
indication to simplify
troubleshooting.
condition
PMRR-TL
time delay drop-out on undervoltage (0.3 to 30 seconds) eliminates
nuisance tripping caused by momentary voltage fluctuations. There is
also an adjustable time delay (1 to 300 seconds) on both power-up
and restart after a fault has been cleared.
PMRRL-TL
PMRR-TL Series
The PMRR-TL Series phase monitor relays provide protection against phase
reversal in a compact low-cost design. One relay will work on any 3-phase system
from 190V to 500V. This relay is designed to be compatible with typical Wye or
Delta systems. In Wye systems,
The relay is energized and the Green LED is ON when the sequence is
Any fault will de-energize the relay and turn ON the Red LED. Re-energization is
automatic upon correction of the fault condi
a connection to a neutral is not required.
correct.
tion.
PMRRL-TL Series
The PMRRL-TL Series phase monitor relays provide protection against
phase reversal and undervoltage. These relays are designed to be compatible
with typical Wye or Delta systems. In Wye systems, a connection to a neutral is
not required. Phase monitor relays protect against single phasing regardless of
any
regenerative voltages.
The relay is energized and the Green LED is ON when all three phases are present
in the correct sequence at a voltage level above the
undervoltage drop-out can be set at 75
instantaneously de-energize the relay and turn ON Red LED. Re-energization is
auto
matic upon correction of the fault condition.
to 95% of operating voltage. Any fault will
undervoltage setting. The
phase loss,
Reference Guide
The reference guide below provides general information
on the different versions of Phase Monitor Relays offered by
Series
PMRR-TL
PMRRL-TL
PMRU-TL
* In addition to the above approvals, all plug-in products are also UL Listed when used with the appropriate (70169-D) socket.
Mounting
Style
Plug-in*
Phase
Loss
ø ø
ø ø
Phase
Reversal
ø
Phase
Unbalance
ø (adj.) ø (adj.) ø(fixed) 0.3–30 seconds cURus, CE
Under
Voltage
ø (adj.) 4secs fixed cURus, CE
www.automationdirect.com
AutomationDirect.com (see Product Selection on the following pages
for further details).
Over
Voltage
Time Delay on
Undervoltage
Approvals*
cURus, CE
Relays and Timers
tREL-68
1-800-633-0405
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Phase Monitor Relays
Features
PMRU-TL
• Universal voltage range of 190 to 500VAC,
3-phase systems
• Protects against phase loss, phase reversal,
phase unbalance, undervoltage and overvoltage
• Variety of user-selectable and adjustable
settings for flexibility in 3-phase protection
PMRR-TL
• Protects against phase reversal
• Works with 190 to 500V 3-phase systems
• LED indicates both normal and fault conditions
• Compact plug-in case utilizing industry standard 8-pin octal socket
• 10A SPDT output contacts
• Automatic or Manual Reset
• Multi-Color LED indicates normal condition
and provides fault indication to simplify
troubleshooting
• Compact plug-in case utilizing industry standard 8-pin octal socket
• 10A SPDT output contacts
PMRRL-TL
• Protects against phase loss, phase reversal
and undervoltage
• Undervoltage setting is adjustable from
• 75-95% of nominal
• LED indicates normal and fault conditions
Protection Device Selection Guide
Part Number Price Description Pcs/Pkg Wt (lb) Use With:
Phase monitor relay, provides protection against phase reversal, phase loss, phase unbalance, undervoltage, and overvoltage;
PMRR-1C-480A-TL
PMRRL-1C-208A-TL
PMRRL-1C-240A-TL
PMRRL-1C-480A-TL
PMRU-1C-480A-TL
70169-D
750-2C-SKT
* Requires a 600V rated socket when used on system voltages greater than 300 volts, such as the 70169-D or 750-2C-SKT.
$39.00
10A SPDT output contacts, 8-pin octal base. Works with 3-phase systems from 208V to 480V.
Phase monitor relay, provides protection against phase reversal; 10A SPDT output contacts, 8-pin octal base. Works with
$45.00
3-phase systems from 208V.
Phase monitor relay, provides protection against phase reversal, phase loss and undervoltage; 10A SPDT output contacts,
$45.00
8-pin octal base. Works with 240V, 3-phase systems
Phase monitor relay, provides protection against phase reversal, phase loss and undervoltage; 10A SPDT output contacts,
$45.00
8-pin octal base. Works with 480V, 3-phase systems
Phase monitor relay, provides protection against phase reversal, phase loss and undervoltage; 10A SPDT output contacts,
$65.00
8-pin octal base. Works with 480V, 3-phase systems.
$4.00 Relay socket, 10A at 600V, 8-pin octal configuration. Can be mounted on 35mm DIN rail or directly mounted to the panel. 0.1 -----$4.25 Relay socket, 5A at 600V, 8-pin octal configuration. Can be mounted on 35mm DIN rail or directly mounted to the panel 0.1 ------
• Compact plug-in case utilizing industry
• standard 8-pin octal socket
• 10A SPDT output contacts
Agency Approvals
• cURus, File number E191059
• UL Listed, File number E191059
• CE
(with socket 70169-D)
0.4
0.3
0.3
1
0.3
0.3
70169-D or
750-2C-SKT
Technical Specifications
Socket PMRU-1C-480A-TL PMRR-1C-480A-TL PMRRL-1C-208A-TL PMRRL-1C-240A-TL PMRRL-1C-480A-TL
Input Voltage Range**
Phase Loss
Phase Reversal
Phase Unbalance
Undervoltage
Overvoltage
Output Contacts
Life*
Response Times
190–500 VAC 50/60Hz (+/-20%)
Unit trips on total loss of one or more of the
three phases (A,B,C)
Unit trips if sequence of the three phases is
anything other than A-B-C
Adjustable from 2% to 10% N/A
Adjustable from 80% to 95% of nominal
voltage
Fixed at 110% of Nominal N/A N/A N/A N/A
SPDT 10A @ 277VAC / 7A @ 30VDC; 1HP @ 250VAC, 1/2HP @ 125VAC, C300 Pilot Duty
See table 2 on following page
190–500 VAC,
50/60Hz (+10/-25%)
N/A Unit trips on total loss of one or more of the three phases (A,B,C)
Unit trips if rotation (sequence)
of the three phases is anything
other than A-B-C.
N/A Unit trips when the average of all three line phases is less than the adjusted set point
Mechanical: 10,000,000 operations; Full Load: 100,000 operations
Power Up & Restart After Fault:
1 second fixed
Drop-out Due to Phase
Reversal: 100ms fixed
Power Consumption
Temperature
Mounting
Indicator LED
Reset
See Table 1 on following page
Standard reset is automatic upon correction of
fault or when a momentary-contact N.C. switch
is wired across the Manual Reset terminals (6 &
7), the unit switches to manual reset mode and
remote manual reset is available
8-pin octal socket requires a 600V rated socket when used on system voltages greater than 300V
Green LED is ON: when all
Approvals
* Resistive load
** Fusing is not required by code but if fusing is used we recommend 2 Ampere MCL2 fuse between the phase monitor relay and the three phases.
Operating: -28° to 65°C (-18 to 149°F)
Storage: -40° to 85°C (-40° to 185°F)
conditions are normal;
Red LED: Reversal
cURus, CE (cULus when used with socket 70169-D)
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208VAC,
50/60Hz (+10/-25%)
Unit trips if sequence of the three phases is anything other than A-B-C
Restart: 1 second fixed; Drop-out Due to Fault: Phase Loss and Reversal: 100ms fixed,
Undervoltage: 4 seconds fixed
<40VA
Standard reset is automatic upon correction of fault.
240VAC,
50/60Hz (+10/-25%)
See Table 3 on following page
Relays and Timers
480VAC,
50/60Hz (+10/-25%)
tREL-69
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