Dorby Czas MMR17-V1B-U230-108 Technical data

1

NOWOŚĆ

Przekaźnik nadzorczy

MMR17-V1A-U230-108

Voltage monitoring 1-phase mains

MMR17-V1B-U230-108

Technical data

Description

Output circuit

Contact arrangement

1 CO

Rated voltage

V AC

250/400

Switching current range AC1
DC1

A/V AC
A/V DC

8/250

8/24

Switching load range AC1

VA

2 000

Contact resistance

mΩ

≤ 100

Max. rated current A 8

Input circuit

Supply voltage Un DC/ AC (50-60Hz) = measured voltage

V

50, 125, 230 

Tolerance 0,8…1,2Un (40…276V)

Rated consumption AC
DC

VA
W

≤ 2.5

<2

Rated frequency

Hz

47…63

Rated surge voltage V 1 000

Insulation

Insulation rated voltage

V AC

250

Rated surge voltage

V

2500 1,2/50s

Overvoltage category III

Dielectric strength

 Input – output
 Open contact

V AC 4 000

1 000

Measuring circuit

Regulation range voltage min U

min

%

70…110%

Regulation range voltage max U

max

%

80…120%

Functions MU, MW

Measurement accuracy

%

≤ 5

Setting accuracy % ≤ 5

Repeatability % ≤ 2

Temperature influence

%/ºC

≤ 0,05

Sampling frequency of the input process

Hz

2930

resolution converters

bits

9

Time module data

Setting range of time off delay

10s

Timing adjustment

smooth 0,05…1,0 x time range

Setting accuracy % 5

Repeatability % 0,5

Reset time

ms

≤ 500

General data

Electrical life AC1 at 1000 VA resistive load

cycles

≥ 1,5 x 105

Mechanical life

cycles

≥ 1 x 107

Dimensions (L x W x H) / Weight

mm / g

90 x 17,5 x 66 / 50g

Storage temperature / ambient temperature

ºC

-40…+70 / -20…+55

IP rating IP20

Relative humidity % 85

Shock resistance g 15

Vibration resistance

mm

0,35 10…55Hz

LED indicator 2 LED

 Voltages can be adjusted to customer requirements

The supervisory relay is designed for
application in automation and control
systems, it controls single-phase AC/DC
voltage systems, and protects the receivers
from voltage drops and rushes beyond the set
thresholds.

Use of the universal power supply allows
correct operation of the measuring system in
a wide range of voltages. TrueRMS voltage
measurement is an innovative method in such
products group and provides the highest
accuracy regardless of the AC input
waveform, which is important in case of
voltage deviation from the ideal sine wave.
TrueRMS method also allows measurement of
the constant DC voltage.

The relay has an adjustable off delay time in a
range from 0.5s to 10s. Seven-position switch
allows selection of measurement functions
undervoltage or window and rated input
voltage range of 50, 125 or 230V.

Relay status is indicated by two LEDs.

Mounting

Mounted on DIN-rail TS 35 according to EN
60715
Mounting position: any
IP rating IP20
Tightening torque: max. 1 Nm

Terminal capacity: 1 x 0.5 to 2.5 mm²

with/without multicore cable end 1 x 4 mm2
without multicore cable end 2 x 0.5 to 1.5

mm² with/without multicore cable end 2 x

2.5 mm2 flexible without multicore cable
end

Danger!

Ordering information

Read and understand these instructions before installing, operating or
maintaining the equipment.
Never carry out work on live parts! Danger of fatal injury! The product must not
be used in case of obvious damage. To be installed by an authorized person.

MMR17-V1B-U230-108

 Voltage monitoring 1-phase mains
 Input voltage range of 50, 125, 230V AC/DC
 TrueRMS voltage measurement
 Function window and undervoltage
 1 change over contact
 Width 17.5mm
 Installation design

MMR17-3146 v1.0

2

Dobry Czas Sp. z o.o. 51-315 Wrocław ul. Miłostowska 7/6; Poland

 [phone]
 [e-mail]

www.dobry-czas.pl

Voltage monitoring 1-phase mains

MMR17-V1B-U230-108

Functions

Dimensions

Front panel view Connection diagram

Functions which are selected by the means of
rotary switch

50U, 125U, 230U – Undervoltage monitoring

50W, 125W, 230W – Monitoring the window between Min and Max

LED indicator

Yellow LED

indication of relay R output.

Green LED

Indicates the system status monitor.

The flashing green LED to fill out short pulses of about 10% of the mean value of the input voltage drop below the lower
threshold U

min

.

Slow flashing green LED pulses to fill out about 90% mean increase in input voltage above the upper threshold U

max

.

Flashing green LED pulses to fill out about 50% means that U

max

upper voltage threshold is set below the lower limit U

min

.

MW (window) – The output relay R switches into on-
position again after the measured voltage reenters the
acceptance region

MU (undervoltage) – The output relay R switches into
on-position again after the measured voltage exceed
the Max-value.

Connect one of the power cords to desired
full rated voltage range input, and the
second one to the common input. For
monitoring constant DC voltage connect the
positive pole (+) to the +/~ terminal.

MMR17-3146 v1.0