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Technical data
Insulation coordination acc. to IEC 60664-1/
IEC 60664-3
MRCDB423-D-1:
Rated voltage ....................................................................100 V
Overvoltage category/pollution degree............................... III/2
Rated impulse voltage .................................................... 2.5 kV
MRCDB423-D-2:
Rated voltage .................................................................. 250 V
Overvoltage category/pollution degree............................... III/2
Rated impulse voltage ....................................................... 4 kV
Protective separation (reinforced insulation) between ................
...........................(A1, A2) - (k, l, T/R) - (11, 12, 14) - (21, 22, 24)
Voltage tests acc. to IEC 61010-1 .....................................2.21 kV
Supply voltage
MRCDB42-D-1:
Supply voltage range
U
S
.............................................................
.....................................................AC 24…60 V / DC 24…78 V
Operating range supply voltage
U
S
.............................................
....................................................AC 16…72 V / DC 9.6…94 V
Frequency range
U
S
..........................................DC, 42…460 Hz
MRCDB423-D-2:
Supply voltage range
U
S
..............................AC/DC 100…250 V
Operating range supply voltage
U
S
................AC/DC 70…300 V
Frequency range
U
S
..........................................DC, 42…460 Hz
Power consumption .......................................................≤ 6.5 VA
Measuring circuit
External measuring current transformer type ..............................
.............................. CTUB101 - CTBCxx(P); CTUB101 - CTBCxxx(P)
Rated voltage (measuring current transformer) .................800 V
Operating characteristic in accordance with IEC 6075 ........type B
Rated frequency ..................................................... 0…2 000 Hz
Operating uncertainty ...................................................0…35 %
Response values
Rated residual operating current
I
Δn1
............................................
.......................................................... 50…100 % of
I
Δn2
(50 %)*
Rated residual operating current
I
Δn2
............................................
.................................................................30 mA…3 A (30 mA)*
Time response
Start-up delay
t
................................................................. (1 s)*
Response delay
t
on1
...............................................0…10 s (1 s)*
Response delay
t
on2
...............................................0…10 s (0 s)*
Operating time tae at
I
Δn
= 1 x
I
Δn1/2
............................. ≤ 180 ms
Operating time tae at
I
Δn
= 5 x
I
Δn1/2
............................... ≤ 23 ms
Response time
t
an
...............................................
t
an
= t
ae
+ t
on
1/2
Recovery time
t
b
........................................................... ≤ 300 ms
Displays, memory
Display range measured value AC/DC ..............................0…6 A
Error of measured value display .................... ±17.5 % / ±2 digit
Measured-value memory for alarm value Data record measured
values
Password .................................................off / 000…999 (000)*
Fault memory output relay ................................................... yes
Inputs/outputs
Cable length for external test/reset button ....................0…3 m
Cable length for measuring current transformer connection .......
0…3 m
Switching elements
Number of switching elements ........... 2 x 1 changeover contact
Operating principle ................................................N/C operation
Electrical endurance, number of cycles .......................................
...........................................................................................10000
Contact data acc. to IEC 60947-5-1:
Utilisation category ......... AC-13 AC-14 DC-12 DC-12 DC-12
Rated operational voltage 230 V 230 V 24 V 110 V 220 V
for UL ...............................200 V 200 V 24 V 110 V 200 V
Rated operational current . 5 A
3 A
1 A 0.2 A 0.1 A
Minimum contact rating ......................... 1 mA at AC/DC ≥ 10 V
Environment/EMC
EMC ....... IEC 60947-2 Annex M (limit value class A according to
CISPR11)
Operating temperature .........................................-25…+55 ºC
Transport ...............................................................-25…+70 °C
Long-term storage .................................................-25…+55 °C
Classification of climatic conditions acc. to IEC 60721
Stationary use (IEC 60721-3-3) ............................................3K23
.................................(except condensation and formation of ice)
Transport (IEC 60721-3-2) ...................................................2K11
Long-term storage (IEC 60721-3-1) .................................... 1K22
Classification of mechanical conditions acc. to IEC 60721
Stationary use (IEC 60721-3-3) ...........................................3M11
Transport (IEC 60721-3-2) ................................................... 2M4
Long-term storage (IEC 60721-3-1) ....................................1M12
Connection
Connection type ......................................... screw-type terminals
Connection properties:
Rigid/flexible ............... 0.2…4/0.2…2.5 mm2 (AWG 24…12)
Multi-conductor connection (2 conductors with the same
cross section):
Rigid/flexible ..................................... 0.2…1.5/0.2…1.5 mm2
Stripping length .......................................................... 8…9 mm
Tightening torque ................................................. 0.5…0.6 Nm
MRCDB423_D00396_01_M_XXEN/06.2021 17
LINETRAXX® MRCDB423