1
04.03.20 en / 201A
0272374
Your Advantage
• Preventive fire and system protection
• Increasing the availability of plants by early fault detection
• Universal usage at AC/DC mains
• Protection against manipulation by sealable transparent cover
over setting switches
Features
• According to IEC/EN 62020, VDE 0663
• For AC and DC systems Type B
• To detect earth faults in grounded voltage systems
• 4 setting ranges from 10 mA to 3 A
• Manual reset, with alarm and pre-warning
• With adjustable switching delay
• Energized or de-energized on trip
• LED indicator for operation, pre-alarm and alarm
• With test function
• LED-chain indicates fault current
• As option with analogue output
• Broken wire detection
• Width: 52.5 mm
The residual current monitor type B is designed to monitor DC systems
and AC systems up to 250 Hz.
green LED „ON“:
On, when auxiliary supply connected
yellow LED „Pre-Alarm“: Flashes during time delay t
v
On, when pre-alarm active
red LED „Alarm“:
Flashes during time delay t
v
On, when alarm active
yellow and red LED:
Flashes on broken wire or extremely high input
signal
yellow LED-chain:
LED chain indicates fault current in % of adjusted
alarm value
1)
RN 5883 Variant /61;
2)
ND 5015
The devices measure AC and DC current (AC / DC sensitive. Due to the
measurement principle they also detect magnetic fields in the next to the
current transformer.
When planning a panel with AC/DC sensitive residual current monitors
please make sure that no components are placed next to the CT that
create a magnetic field, e.g. contactors, transformers etc.
If an influence is detected, also a rotation of the CT by 90° could positively
reduce the influence.
The AC/DC sensitive residual current monitor RN 5883 allows an early
detection of insulation faults and detects differential currents with AC
as well as DC components in grounded voltage systems (type B). The
measurement takes place via an external current transformer.
Contrary to an RCD the residual current monitor RN 5883 does not dis-
connect the mains when detecting a fault but only indicates it. Besides
the easy to read LED chain indicating the actual current several LEDs
display operation, pre-alarm and alarm. The 4 measuring ranges cover
10 to 3 A. Additional features are broken wire detection, test function and
adjustable pre-alarm.
The residual current monitor RN 5883 provides early information for precise
and cost effective maintenance before the plant stops.
RN 5883
M11213
11
14
A1
k1
k2
12
21
22
24
U+ U-
A2
i1
i2
X1 X2
A1
X1
i1
i2
k1
k2
A2
X2
11
21
12
22
14
24
Alarm
Pre - Alarm
IF
0...10V
U+
U-
Installations- / Monitoring Technique
VARIMETER RCM
Residual Current Monitor, Type B for AC and DC Systems
RN 5883
Approvals and Markings
Product Description
Circuit Diagram
Application
Indication
Notes
Connection Terminals
Terminal designation
Signal description
A1, A2
Auxiliary voltage U
H
i1, k1, i2, k2
Connection of an external
residual current transformer
X1, X2
Parameterization input
energized or de-energized on trip
11, 12, 14
Contacts alarm signal
21, 22, 24
Contacts pre-alarm signal
U-, U+
Analogue output (option)
ND 5015/035
ND 5015/070
Canada / USA
1)
A025518
Canada / USA
2)
All Technical Data in this list relate to the state at the moment of edition. We reserve the rigth for
technical improvements and changes at any time.
