Insulation monitors

Insulation monitors

Residual current monitors Unplanned interruptions of the operation of machines and systems are a significant cost factor. Insulation errors are a frequent cause for this. In grounded networks (TN networks), DOLD difference current sensors ensure reliable residual current monitoring.

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LK 5896

Universal application in non-earthed AC, DC, AC/DC networks with up to 1000 V nominal voltage

3 changeover contacts

2 separate adjustable response thresholds: 20 kΩ … 2 MΩ, 1 kΩ … 250 kΩ and output relay for signaling wire break and device faults

Energized or de-energized on trip can be selected for output relay

Setting the maximum leakage capacitance to shorten the response time

Simple, clearly arranged adjustment of the device with screwdriver

LED chain to indicate the current insulation resistance

LK 5895

Universal application in non-earthed AC, DC, AC/DC networks with up to 1000 V nominal voltage

2 changeover contacts

2 separate adjustable response thresholds: 20 kΩ … 2 MΩ, 1 kΩ … 250 kΩ

Energized or de-energized on trip can be selected for output relay

Setting the maximum leakage capacitance to shorten the response time

Simple, clearly arranged adjustment of the device with screwdriver

LED chain to indicate the current insulation resistance

LK 5894

Universal application in non-earthed AC, DC, AC/DC networks with up to 690 V nominal voltage

2 changeover contacts

2 separate adjustable response thresholds: 20 kΩ … 2 MΩ, 1 kΩ … 250 kΩ

Energized or de-energized on trip can be selected for output relay

Setting the maximum leakage capacitance to shorten the response time

Simple, clearly arranged adjustment of the device with screwdriver

LED chain to indicate the current insulation resistance

RN 5897

Universal application in non-earthed AC, DC, AC/DC networks up to AC max. 250 V or DC max. 300 V

2 separate adjustable response thresholds: 20 kΩ … 2 MΩ, 1 kΩ … 250 kΩ

2 changeover contacts

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

Protection against manipulation by sealable transparent cover

External control input for combined Test-/Reset-button

3 wide voltage input for auxiliary voltage

UH 5892

Insulation monitoring of DC voltage systems up to 600 V nominal voltage

1 changeover contact for alarm

Fixed response value RAN: 50 kΩ, other on request

Internal reset and test pushbutton

External test and reset pushbutton can be connected

LED indicator for auxiliary voltage and alarm

LED chain to indicate the current insulation resistance

Automatic or manual reset, programmable

Analogue output for insulating value

IL 5881

For DC voltage systems up to 12 … 280 V

Adjustable tripping value RAL of 5 … 200 kΩ

Selective ground fault indication for L+ and L- allows fast fault finding

Without auxiliary supply

2 changeover contacts

Automatic or manual reset, programmable

With test and reset button

Connections of external test and reset buttons possible

IL 5880

For single and 3-phase AC-systems up to 0 … 500 V and 10 … 10000 Hz

Adjustable tripping value RAL of 5 … 100 kΩ

Galvanic separation between measuring input, auxiliary voltage and output contacts

LED indicators for operation and alarm

2 changeover contacts

RN 5883

For AC and DC systems Type B, according to IEC/TR 60755

4 setting ranges from 10 mA to 3 A

Manual reset, with alarm and pre-warning

With adjustable switching delay

LED indicator for operation, pre-alarm and alarm

LED-chain indicates fault current

As option with analogue output

Broken wire detection

IR 5882

According to IEC/EN 62 020
for AC and pulsating DC currants Type A to IEC/TR 60755

9 tripping values from 10 mA to 10 A or from 10 mA … 30 A

Frequency range 20 … 2000 Hz

LED indication for auxiliary supply and state of contact

2 x 1 changeover contact

IL 5882

For AC and pulsating DC currants Type A to IEC/TR 60755

9 tripping values from 10 mA to 10 A or from 10 mA … 30 A

Frequency range 20 … 2000 Hz

LED indication for auxiliary supply and state of contact

2 x 1 changeover contact

Insulation monitors

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