Insulation monitor RN 5897

The insulation monitor RN 5897 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 even with large leakage capacity to earth (PE). The adjustment of the setting values is simple and user friendly done on 2 rotary switches on the front of the device. Via display and LEDs the measured value, device parameters and device status are indicated easy to read. With a sealable transparent cover the device is protectet against manipulation.

Advantages and Features:​

• Insulation monitoring according to IEC/EN 61557-8​
• Acc. to DIN VDE 0100-551 for mobile generator sets​
• Detection of symmetric and asymmetric insulation faults​
• Quick fault localisation through selective earth fault detection to L+ and L-​
• Universal application in non-earthed AC, DC, AC/DC networks up to 300 V​
• Easy adjustment of response values and setting parameter via rotational switch and menu display​
• Suitable for large leakage capacitances up to 300 μF​
• Optimised reaction time for large leakage capacitances​
• 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 … 500 kΩ​
• Setting range of 2nd response value (Alarm): 15 kΩ … 100 kΩ​
• 2 changeover contacts für insulation failures-Pre-Alarm and -Alarm​
• Energized or de-energized on trip can be selected for indicator relay​
• Display for indication of measured value, device parameters and device status​
• Setting the maximum leakage capacitance to shorten the response time​
• 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