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Type:
Monitoring Hardware
Description:
The insulation monitor RN 5897/100 of the VARIMETER IMD family is a solution for optimal insulation monitoring of modern IT systems.
Connectivity:
Modbus RTU
Features:
2 separate adjustable response thresholds (using e.g. for pre-alarm and Alarm); Setting range pre-alarm: 1 kΩ ... 500 kΩ; Setting range alarm: 1 kΩ ... 500 kΩ; 2 parameterizable changeover contacts (for insulation fault pre-alarm, insulation fault-alarm, insulation fault-alarm on DC+/DC- or device fault) each galvanic separated; Energized or de-energized on trip can be selected for indicator relay; With multicolour status LED to indicate the state of operation.; Manual device self-test (automatic device self-test can be activated); 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; 2 wide voltage input for auxiliary voltage; Width 52.5 mm
Specifications:
Suitable for DC charging stations for electric vehicles acc. to IEC/EN 61851-23:2014/AC:2016-06; Insulation monitoring according to IEC/EN 61557-8; Universal application in non-earthed AC-, DC-, AC/DC networks up to AC max. 250 V resp. DC max. 300 V; Connection of an external coupling device RP 5898 for voltages up to AC 690 V / DC 1000 V possible; Extended operating temperature range of - 40 ... + 70 °; Very fast reaction time < 1 s; Optimised insulation resistance monitoring also during mains voltage variation; Preventive fire and system protection; Detection of symmetric and asymmetric insulation faults; Easy adjustment of response values and setting parameter via Modbus; Suitable for leakage capacitances up to 5 µF; Monitoring also with voltage-free mains; Measuring circuit L(+)/L(-) with broken wire detection (can be switched off); Protective conductor PE1/PE2 with broken wire detection (can't be switched off); With galvanic separated Modbus RTU interface
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