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Insulation monitor
RN 5897
- Article number: 0066938
- Type: RN5897.12/61 AC/DC24-60V
The insulation monitor RN 5897 of the VARIMETER IMD family is a solution for optimal insulation... more
Product description
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.
Technical specifications
| Width: | 52,5 mm |
| Response value: | 1 - 250 kΩ |
| IMD type: | AC, DC, AC/DC |
| Nominal voltage IT system: | AC 0 - 230, DC 0 - 230 V |
| Auxiliary voltage: | DC, AC/DC |
| Earth fault indicator: | Yes |
| Approvals: | UL |
| Response value type: | Adjustable |
| Enclosure design: | Distribution board |
| Type: | RN 5897 |
Advantages
- Preventive fire and system protection
- 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
Features
- Insulation monitoring according to IEC/EN 61557-8
- 2 separate adjustable response thresholds (using e.g. for pre-Alarm and Alarm)
- Setting range of 1st response value (Pre-Alarm): 10 kΩ … 1 MΩ
- Setting range of 2nd response value (Alarm): 1 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
- 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
