Datasheet

42 TDB404006en / Main catalogue part 4 – Residual current monitors, Residual current monitoring systems / 07.2010
4.2
Residual current monitor RCMA420
I(
∆n
) ≤ 500 mA
I(
∆n
) > 500 mA
Connection of measuring current transformers
Dimensions in mm
Open the front plate cover in
direction of arrow!
Screw mounting
Note: The upper mounting clip
must be ordered separately
(see ordering information).
Dimension diagram XM420
Connection to the RCMA420 residual current monitor using the
WX-… connecting cable.
Colour coding for WX…: k = yellow, l = green, -12 V = black, GND
= brown, +12 V = red, Test (T) = orange
Ordering information
Type Response
range I
Δn
Frequency
range
Supply
voltage U
S
*
Art. No.
RCMA420-D-1 10…500 mA 0…2000 Hz DC 9.6…94 V /
AC 42…460 Hz 16…72 V
B 7404 3001
RCMA420-D-2
10…500 mA 0…2000 Hz DC 70…300 V /
AC 42…460 Hz / 70…300 V
B 7404 3002
Device version with screw terminals on request. * Absolute values
Measuring current transformers
Type Internal diameter (mm) Art. No.
W20AB ø 20 B 9808 0008
W35AB ø 35 B 9808 0016
W60AB ø 60 B 9808 0026
Connection cable measuring current transformer – RCMA420-D
Type Length/m Art. No.
WX-100 1 B 9808 0503
WX-250 2.5 B 9808 0504
WX-500 5 B 9808 0505
WX-1000 10 B 9808 0506
Accessories
Type Art. No.
Mounting clip for XM420 enclosure B 9806 0008
Snap-on mounting W20…, W35… B 9808 0501
Snap-on mounting W60… B 9808 0502
(1 unit required for each device)