Data
88
RCMS460-490_D00067_03_M_XXEN/12.2017
Measuring range RCMS…-D4/-L4 (channels 9…12 only) ............................................................100 mA…125 A
Rated residual operating current
I
Δn2
(alarm) .........................................................................10 mA…10 A (type B)
......................................................................................................................................................6 mA…20 A (type A)
.....................................................................................................................................................(100 mA overcurrent)*
Rated residual operating current
I
Δn2
(alarm) for RCMS…-D4/-L4 (channels 9…12 only)
............................................................................................................................ 100 mA…125 A (16 A overcurrent)*
Rated residual operating current
I
Δn1
(prewarning) ........................................................................10…100 % x
I
Δn2
.......................................................................................................................................................... min. 5 mA (50 %)*
Digital input....................................................................................................................................................1: < 100 Ω
........................................................................................................................................................................0: > 250 Ω
Preset for alarm
........................................................................................................................... I
Δ
x factor 1…99 (3)*
................................................................................................................................................Offset 0…20 A (30 mA)*
Preset for digital input ........................................................................................................................................0/1 (1)*
Relative uncertainty RCMS…-D/-L ........................................................................................................0…-20 %**
Relative uncertainty RCMS…-D4/-L4 (channels 9…12 only) ...................................................... +10…-20 %**
Hysteresis ...........................................................................................................................................2…40% (20 %)*
Factor for additional CT ........................................................................................................ /1…10; x 1…250 (x 1)*
Number of measuring channels (per device/system) ..................................................................................... 12/1080
Time response
Start-up delay
t
(start-up)
per device .....................................................................................................0…99 s (0 ms)*
Response delay
t
on
per channel ....................................................................................................0…999 s (200 ms)*
Delay on release
t
off
per channel ...................................................................................................0…999 s (200 ms)*
Operating time
t
ae
at
I
Δ
n
= 1 x
I
Δ
n1/2
............................................................................................................ ≤ 180 ms
Operating time
t
ae
at
I
Δ
n
= 5 x
I
Δ
n1/2
............................................................................................................... ≤ 30 ms
Response time
t
an
for residual current measurement
.......................................................................t
an
=
t
ae
+
t
on1/2
Operating time
t
ae
digital inputs ......................................................................................................................... ≤ 3.5 s
Scanning time for all measuring channels (residual current measurement) ............................................... ≤ 180 ms
Recovery time
t
b
....................................................................................................................................... 500…600 ms
Displays, memory
Measured value display range RCMS…-D / -L ..........................................................................0…30 A (CT Type A)
........................................................................................................................................................0…20 A (CT type B)
Display range, measured value RCMS…-D4/-L4 (channels 9…12)..................................... 0…125 A (CT type A)
Error of indication................................................................................................................................................ ± 10 %
LEDs .................................................................................................................................. ON/ALARM (RCMS…-D…)