RC15/RC20, current relays0 pages

C-mac

®

Current relays RC15/RC20

RC15: AC-current monitor RC20: DC-current monitor
Adjustment of setpoint and hysteresis
Selectable activation or release of relay
DC supply or AC supplies up to 230 VAC
1- or 2-pole relay output
Made in accordance with the
and EMC regulations

The C-mac® modules, type RC15 and RC20 are simple
current monitoring relays, for AC- and DC input signals,
respectively.
The modules are available for several different metering
ranges, but the range must be specified at ordering, since
each unit has only got one metering range.
By means of a connection at the relay base you can select,
it the output relay should activate or release, when the setpoint is exceeded, in this way, the module can be used for
both over- and under current monitoring.
Common technical data:
Supply voltage, AC:
Supply frequency:
Variable supply:
Isolation voltage:
Supply voltage, DC:

Power consumption:
Operation temp.:
Humidity:
Relay inversion:
Open:
Closed:
Adjustments:
Level:
Hysteresis:
Indications:
Green LED:
Red LED:
Accuracy, scale:
Temp. coefficient:
Max. load, relay:

24, 115 and 230 VAC +/- 10%
40-70 Hz
12-50 VDC or 48-250 VDC
Supply - input - output: 3.75 kV
24 VDC +/- 10%
Note: With this DC-supply there
is no isolation between supply and
internal electronics.
2,5 VA
-20°C to +60°C
0 - 90% RH, non-condensing
pin 6-7
Relay releases at undercurrent
Relay releases at overcurrent
Potentiometer, scale 5 to 100%
Potentiometer, scale 5 to 50%
Supply voltage connected
Relay active
5%
typ 0,1 % / °C
1-pole: 8 A - 250 VAC
2-pole: 5 A - 250 VAC,
ohmic load

EMC and safety regulations.
Emmision:
EN 50 081 - 1
Immunity:
EN 50 082 - 2
Safety:
EN 60 730
Approvals: The units are produced in accordance with the CE
og low voltage regulations.
Metering ranges:
range
RC15:
0,05 - 1 A AC
0,25 - 5 A AC

int. shunt
0,220 W
0,033 W

max current
3 A
8 A

0,05 - 1 mA
1 - 20 mA
5 - 100 mA
25 - 500 mA
0,1 - 2 A
0,25 - 5 A

100 W
5,00 W
1,30 W
0,20 W
0,07 W
0,03 W

10 mA
100 mA
500 mA
2 A
6 A
10 A

RC20:

Functional diagram:
supply
setpoint
hysteresis
input
relay,
ex. 1
relay,
ex. 2

Example 1, undercurrent monitoring
pin 6-7 not connected
Example 2, overcurrent monitoring
pin 6-7 connected

Comadan
Produktion a/s

5-7