M3PRT/2 280-520VAC BROYCE CONTROL, M3PRT/2 280-520VAC Datasheet
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M3PRT/2 280-520VAC
Manufacturer Part Number
M3PRT/2 280-520VAC
Description
RELAY,UNDER/OVER V/LOSS, 3PHASE, 520VAC
Manufacturer
BROYCE CONTROL
Series
2-Wirer
Datasheet
1.M3PRT2_280-520VAC.pdf
(1 pages)
Specifications of M3PRT/2 280-520VAC
Contact Configuration
DPDT
Relay Mounting
DIN Rail
Contact Current Ac Max
8A
Contact Current Dc Max
8A
Contact Voltage Ac Max
250V
Contact Voltage Dc Max
25V
External
RoHS Compliant
Rohs Compliant
Yes
Applying power.
Setting the unit.
Troubleshooting. The table below shows the status of the unit during a fault condition.
Type: M3PRT/2 & M3PRT/2-4W
Phase Failure, Phase Sequence and Under Voltage plus Time Delay
q
q
q
q
q
q
q
q
q
Supply fault
Phase or Neutral (4-wire only) missing
Phases reversed (no delay)
Under Voltage condition (during timing)
Under Voltage condition (after timing)
Phase below 70% of Un (fixed under trip level [2])
Phase below 50% of Un
Telephone: +44 (0) 1902 773746 Facsimile: +44 (0) 1902 420639 Email: sales@broycecontrol.com Web: http://www.broycecontrol.com
The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk.
FUNCTION DIAGRAM
INSTALLATION AND SETTING
BEFORE INSTALLATION, ISOLATE THE SUPPLY.
Connect the unit as required. The diagram below shows a typical installation, whereby the supply to
the load is being monitored by the relay. If a fault should occur, the contactor is de-energised
removing the 3-phase supply to the load. The contactor only re-energises after the fault has cleared.
Set the “trip level” and the “time delay” to minimum.
Apply power and the green “supply on” and red “relay” LED’s will illuminate, the relay will energise
and contacts 15 and 18 / 25 and 28 will close. Refer to troubleshooting table if the unit fails to operate
correctly.
Accurate setting can be achieved by adjusting the “trip level” until the unit trips (relay de-energises)
then by decreasing the “trip level” setting until the relay re-energises. By close setting of the “trip
level”, the unit will also detect a phase loss even with a large percentage of re-generative voltage.
In order to set the unit as previously described but without causing disruption to the equipment being
controlled/monitored, set the “time delay” to maximum. It will now be possible to establish the trip
point when the red “relay” LED starts to flash. Decrease the trip level setting to stop the LED flashing.
(Note: If the time delay is allowed to expire, the output relay will de-energise).
If large supply variations are anticipated, the “trip level” should be set further from the nominal
voltage.
Set the “time delay” as required. (Note that the delay is only effective should the supply drop below
the set “trip level”. However, if during an under voltage condition the supply drops below the 2
under voltage trip level, any set time delay is automatically cancelled and the relay de-energises).
CONNECTION DIAGRAM
35mm DIN rail housing
Microprocessor controlled with internal monitoring (self-checking)
Monitors own supply and detects an Under voltage condition on one or more phases
M3PRT/2 measures phase to phase voltage and M3PRT/2-4W measures phase to neutral voltage
Detects incorrect phase sequence, phase loss and neutral loss (4-wire only)
Adjustment for under voltage trip level
Adjustment for time delay (from an under voltage condition)
1 x DPDT relay output 8A
Intelligent LED indication for supply and relay status
(4-wire only) N
Fixed
Under trip [2]
3~ Supply
Monitored
Output
L1, L2
L2, L3
L3, L1
N*
L1 (R)
L2 (Y)
L3 (B)
Supply / Monitored
Voltage
Hyst.
Under trip
Local Fuse
Td
Board
t
Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England
N*
16 18
15
Phase monitor
L3
t
Green LED
Off
Flashing
On
On
On
Off
L2
26 28
25
time delay automatically cancelled as
phase drops below 2nd trip point
L1
Contactor
tr
Red LED
Off
Off
Flashing
Off
Off
Off
*N - Neutral connection
only available on 4-wire
version
Installation work must be carried
tr
out by qualified personnel.
Phases reversed
LOAD
Relay
De-energised
De-energised
Energised for set delay (t)
De-energised
De-energised
De-energised
Td
nd
Supply / monitoring
Frequency range:
Isolation:
Rated impulse
Power consumption:
(max.)
Trip levels:
Repeat accuracy:
Hysteresis:
Response time:
Time delay (t):
Delay from
Power on delay (Td):
Ambient temp:
Relative humidity:
Output:
Output rating:
Electrical life:
Dielectric voltage:
Rated impluse
Housing:
Weight:
Mounting option:
Terminal conductor size:
Approvals:
Options:
1. For other supply/monitoring voltages, please consult the sales office.
2. For alternative time delays or trip levels, please consult the sales office.
voltage U*:
withstand voltage:
Voltage range:
161 - 300V AC (3-wire)
withstand voltage:
77 - 143V AC (3-wire)
280 - 520V AC (3-wire)
44.5 - 82.5V AC (4-wire) 44.5V
93 - 173V AC (4-wire)
161 - 300V AC (4-wire)
phase/neutral loss (tr):
TECHNICAL SPECIFICATION
MOUNTING DETAILS
surface mounting
Withdraw clips
fully when
Insert screwdriver
to release clips
to DIN 43880
M3PRT/2 (L1, L2, L3)
77- 143V AC
161 - 300V AC
280 - 520V AC
48 - 63Hz
Over voltage cat. III
4kV (1.2 / 50 S) IEC 60664
L1: 20VA (3-wire), 13VA (4-wire)
L2: 0.2VA (3-wire), 0.1VA (4-wire)
L3: 20VA (3-wire), 0.1VA (4-wire)
Under [2] fixed 2%:
77V
161V
280V
93V
161V
0.2 - 10 sec ( 5%)
Note: actual delay (t) = adjustable delay + response time
-20 to +60 C
+95%
DPDT relay (15, 16, 18 / 25, 26, 28)
AC1
AC15
DC1
2kV AC (rms) IEC 60947-1
4kV (1.2 / 50 S) IEC 60664
Orange flame retardant UL94 VO
On to 35mm symmetric DIN rail to BS5584:1978
(EN50 002, DIN 46277-3) Or direct surface mounting via
2 x M3.5 or 4BA screws using the black clips provided on
the rear of the unit.
Conforms to IEC. CE and
0.5% @ constant conditions
2% of trip level (factory set)
50 mS
100 mS (worst case = tr x 2)
1sec. (worst case = Td x 2)
150,000 ops at rated load
100g
2 x 2.5mm
W. 35mm
Dims:
89 (excl. clips)
93 (+/- 1mm)
2
250V 8A (2000VA)
250V 3A
25V 8A (200W)
solid or stranded
45
M3PRT/2-4W
44.5 - 82.5V AC
93 - 173V AC
161 - 300V AC
Under (adjustable):
83 - 138V
173 - 288V
300 - 500V
48 - 79V
100 - 166V
173 - 288V
Compliant.
Supply / monitoring
voltage when ordering
Terminal Protection to IP20
*Please state
49 59
M3PRT2-2-A
(L1, L2, L3, N)