What products does Hirotronix supply?

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

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Hirotronix is located in Mississauga, Ontario, Canada.

Does Hirotronix provide worldwide service?

Yes, Hirotronix supplies automation and sensor solutions worldwide.

DOLD RN 5897/021 – Insulation monitor

Brand

DOLD

Part number

RN 5897/021

Order number

0069252

Insulation monitor

Suitable for DC charging stations for electric vehicles acc. to IEC/EN 61851-23:2014/AC:2016-06
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 AC max. 250 V or DC max. 300 V

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Brand	DOLD
Housing width	52.5 mm
Approvals	UL
Enclosure design	Distribution board
Order number	0069252

The insulation monitor RN 5897/021 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. Mains areas of applications are non-earthed DC charging stations for electric vehicles with mains voltages up to DC 1000 V. 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. The RN 5987/021 has an additonal Modbus RTU-interface. All measured values, device states and parameters can be read out, set and parameterized. All functions available on the device can also be operated via Modbus.

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): 1 kΩ … 500 kΩ
Setting range of 2nd response value (alarm): 1 kΩ … 500 kΩ
Energized or de-energized on trip can be selected for indicator relay
Display for indication of measured value, device parameters and device status
Automatic and manual device self-test
Alarm storage selectable
Protection against manipulation by sealable transparent cover
External control input for combined test- / reset-button with additional Stop of the measuring function
2 wide voltage input for auxiliary voltage
Width 52.5 mm

Technical specifications

Approvals	UL
Auxiliary voltage	AC/DC
Bus interface	Modbus RTU
Classification	For DC charging stations
Earth fault indicator	Yes
Enclosure design	Distribution board
IMD type	AC, AC/DC, DC
Nominal voltage IT system	AC 0 – 230 V, AC 0 – 690 (Coupling device) V, DC 0 – 230 V, DC 0 – 1000 (Coupling device) V
Response value	1 – 500 kΩ
Response value type	Adjustable
Width	52,5 mm
Type	RN 5897/021

Available variants

Alarm value	1 – 500 kOhm
Auxiliary voltage	AC/DC 24 – 60 V · AC/DC 100 – 230 V
Contact equipping	2 x 1 changeover contact
Prewarning value	1 – 500 kOhm
Approvals and Markings	UL-listed C/US