Insulation monitor RN 5897/300

The insulation monitor RN 5897/300 of the VARIMETER IMD family is a solution for optimal insulation monitoring of modern IT systems. The device can be used in the most flexible way for AC, DC and AC/DC systems. The adjustment of the setting values is simple and user friendly done on 3 rotary switches on the front of the device. Via multicolor LED the device status is indicated easy to read. With a sealable transparent cover the device is protected against manipulation.

Advantages and Features:​

• Insulation monitoring according to IEC/EN 61557-8​
• For mobile generator sets according to DIN VDE 0100-551​
• Detection of symmetric and asymmetric insulation faults​
• Universal application in non-earthed AC, DC, AC/DC networks up to max. 300 V​
• Easy adjustment of response values and setting parameter via rotational switch​
• Suitable for large leakage capacitances up to 30 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)​
• No additional coupling device required​
• 2 separate adjustable response thresholds (using e.g. for pre-Alarm and Alarm)​
• Setting range of 1st response value (Pre-Alarm): 20 kΩ … 1 MΩ:​
• Setting range of 2nd response value (Alarm): 10 kΩ … 250 kΩ​
• 2 changeover contacts für insulation failures-Pre-Alarm and -Alarm​
• Energized or de-energized on trip can be selected for indicator relay​
• LED for status indication​
• Automatic and manual device self-test​
• Alarm storage selectable​
• Protection against manipulation by sealable transparent cover​
• External control input for combined Test-/Reset-button​
• 3 wide voltage input for auxiliary voltage​
• Width 52.5 mm