1
17.03.21 en / 371A
0280374
Your Advantages
• Insulation monitoring according to IEC/EN 61557-8
• Suitable for DC charging stations for electric vehicles
acc. to IEC/EN 61851-23
• Connection of an external coupling device RL 5898
for voltages up to AC 400 V / DC 500 V or
RP 5898 for voltages up to AC 690 V / DC 1000 V
• Extended operating temperature range of - 40 ... + 70 °C
• Very fast reaction time
≤
1 s
• Optimised insulation resistance monitoring also during
mains voltage variation
• Self-test every full operating hours
• Preventive fire and system protection
• Detection of symmetric and asymmetric insulation faults
• Universal application in non-earthed AC, DC, AC/DC networks
• Easy adjustment of response value and setting parameter via
rotational switch
• Suitable for large leakage capacitances up to 5 µF
• Monitoring also with voltage-free mains
• Measuring circuit L1(+)/L2(-) with broken wire detection (can be switched off)
• Protective conductor PE1/PE2 with broken wire detection
(can't be switched off)
Features
• Setting range of 2nd response value (alarm): 1 k
Ω
… 500 k
Ω
• 1 changeover contacts each for insulation failures alarm and device failures
• Energized or de-energized on trip can be selected for indicator relay
• With multicolour status LED to indicate the state of operation.
• Automatic and manual device self-test
• Alarm storage selectable
• Protection against manipulation by sealable transparent cover
• External control input for combined test- / reset-button
with additional stop of the measuring function
• With semiconductor output to indicate the insulation resistance (PWM)
• 3 wide voltage input for auxiliary voltage
• Additional coupling device is necessary
• Width 52.5 mm
Product Description
Approvals and Markings
Applications
Insulation monitoring of:
• Non-earthed AC, DC, AC/DC networks
• DC charging stations for electric vehicles
• UPS systems
• Networks with frequency inverters
• Battery networks
• Networks with direct current drives
• Hybrid and battery-powered vehicles
• Mobile generator sets
Monitoring Technique
VARIMETER IMD
Insulation monitor
RN 5897/240
RN 5897/240
RP 5898
Coupling devices
RL 5898
The insulation monitor RN 5897/020 of the VARIMETER IMD family
provides best and up to date insulation monitoring of modern IT systems
in an optimum and state of the art way fulfilling the relevant standards.
The device can be used in the most flexible way for AC, DC and AC/
DC systems. The connection to the monitored voltage system is done via
one of the coupling units. The setting of the parameters and the switching
values is done by simple and operator friendly rotational switches on
front of the device. The operating status is indicated user friendly via a
multicolour LED. With a sealable transparent cover the device is protectet
against manipulation.
Translation
of the original instructions
AC/DC
Canada / USA
A025518
1)
1)
RN 5897 only
All Technical Data in this list relate to the state at the moment of edition. We reserve the right
for technical improvements and changes at any time.
