What products does Hirotronix supply?

Hirotronix supplies industrial automation sensors, machine safety systems, operator controls, level measurement systems, and automation components.

Where is Hirotronix located?

Hirotronix is located in Mississauga, Ontario, Canada.

Does Hirotronix provide worldwide service?

Yes, Hirotronix supplies automation and sensor solutions worldwide.

DOLD LK 5896 – Insulation monitor

Brand

DOLD

Part number

LK 5896

Order number

0065131

Insulation monitor

Preventive fire and system protection
Quick fault localisation through selective earth fault detection to L+ and L-
Universal application in non-earthed AC, DC, AC/DC networks with up to 1000 V nominal voltage
Suitable for large leakage capacitances up to 3000 μF
Simplest setting via engaging rotary switches

Download datasheet (PDF)Ask an engineer

Price and lead time on request — add this part to your quote list and we will reply with pricing and availability.

Brand	DOLD
Housing width	90 mm
Approvals	UL
Enclosure design	Switch cabinet
Order number	0065131

The insulation monitor LK 5896 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 LEDs the measured value, device parameters and device status are indicated easy to read. The unit has 3 relay contacts to signal Insulation and device failures. The analogue output provides a voltage and current signal proportional to the actual insulation resistance, which can be connected to a superior control (plc), another system or external display unit. In addition the LK 5896 provides a second measuring circuit that can be used to monitor an inverter on the AC side also when the inverter is disconnected.

Features

Insulation monitoring according to IEC/EN 61557-8
Detection of symmetric and asymmetric insulation faults
Measuring circuits can be disconnected via control terminals, e.g. for mains couplings
1 changeover contact each for prewarning and alarm
3. output relay for signalling wire break and device faults
Prewarning threshold setting range: 20 kΩ … 2 MΩ
Alarm threshold setting range: 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
Display of active measuring circuits
Automatic and manual device self-test
Alarm storage selectable
External test and reset pushbutton can be connected
Width: 90 mm

Technical specifications

Approvals	UL
Auxiliary voltage	DC
Classification	For photovoltaic systems
Connection for indicator	Yes
Earth fault indicator	Yes
Enclosure design	Switch cabinet
IMD type	AC, AC/DC, DC
Nominal voltage IT system	AC 0 – 1000 V, DC 0 – 1000 V
Response value	1 – 250 kΩ
Response value type	Adjustable
Width	90 mm
Type	LK 5896

Available variants

Alarm value	1 – 250 kOhm
Auxiliary voltage	DC 24 V
Contact equipping	3 x 1 changeover contact
Prewarning value	20 kOhm – 2 MOhm
Approvals and Markings	UL-listed C/US, UKCA
Variant	Without wire-break detection at L(+)/L(-). With analog output. With auxiliary measuring circuit · With wire-break detection at L(+)/L(-). Analogue output with linear output function to indicate the insulation resistance value. With adapted measurement algorithm. With auxiliary measuring circuit · With wire-break detection at L(+)/L(-). Analogue output with linear output function to indicate the insulation resistance value. With auxiliary measuring circuit · With wire-break detection at L(+)/L(-). With analog output. With auxiliary measuring circuit

Tell us the variant you need in your quote request.