Technical data
36
RCMA420-DM_D00060_02_M_XXEN/06.2016
Measuring range DC ................................................................................................................................... 3…600 mA
Relative uncertainty (overcurrent) for f
≤ 2 Hz or ≥ 16 Hz ....................................................................... 0…-35 %
Relative uncertainty (overcurrent) for f
>2 Hz…<16 Hz ............................................................. -35 %…+100 %
Relative uncertainty (undercurrent) for
f
≤ 2 Hz or ≥ 16 Hz ..................................................................... 0…-35 %
Relative uncertainty (undercurrent) for
f
>2 Hz…<16 Hz .......................................................... -35 %…+100 %
Operating uncertainty .................................................................................................................................... 0…35%
Response values
Rated residual operating current
I
Δn1
(prewarning, AL1) .............................................50…100 % x
I
Δn2
, (50 %)*
Rated residual operating current
I
Δn2
(Alarm, AL2) ......................................... AC / DC 10 mA…500 mA (30 mA)*
Hysteresis ....................................................................................................................................... 10…25 % (15%)*
Specified time
start-up delay t ................................................................................................................................... 0…10 s (0.5 s)*
Displays, memory
Display range, measured value AC ................................................................................................................ 0…1.5 A
Display range, measured value DC ............................................................................................................ 0…600 mA
Error of indication ......................................................................................................................... ±17.5 % / ± 2 digit
Measured-value memory for alarm value ..................................................................... data record measured values
Password ........................................................................................................................................ off / 0…999 (off)*
Fault memory ............................................................................................................................................ on / off (on)*
Cable lengths for measuring current transformers
Connection WX… (see ordering information on page 39) ................................................. 1m / 2.5m / 5m / 10m
or alternatively: single wire 6 x 0.75 mm
2
.................................................................................................... 0…10 m
Inputs/outputs
Cable length for external test / reset button................................................................................................... 0…10 m
Voltage output:
No-load voltage (terminals open) ................................................................................................................ ≤ DC 20 V
Voltage output .........................................................................................................................................
DC 0…10 V
Load ......................................................................................................................................................................≥ 1 kΩ
Resolution...............................................................................................................................................................50 mV
Actuating time 1 x
I
Δn
...........................................................................................................................................> 1,8 s
Actuating time 5 x
I
Δn
...................................................................................................................................... > 360 ms
