Product overview VARIMETER Insulation monitoring device (IMD) Insulation fault detection system (EDS) Residual current monitor (RCM) Technical contribution: Insulation monitoring of disconnected consumers Our experience. Your safety.

You know the situation: complex production systems, high requirements in terms of the quality, delivery time and reliability, permanent cost pressure. This requires more than ever a comprehensive operational readiness in order to be able to maintain and improve the competitiveness at the international level. In practice, however, a comprehensive operational readiness is often given only conditionally, because insulation faults may slowly but progressively occur due to ageing, moisture, pollution, mechanical damage and other factors. Consequences of such undiscovered errors are costly plant shut-downs...

Maximum availability, for more efficiency Advantages for you at a glance: X Better operational and industrial safety: Preventive maintenance for protection of people and machines from dangers associated with electric current. X Better fire safety: Timely detection of sneaky insulation faults. Minimisation of faulty electric arcs which represent a frequent cause of fires. XBetter accident safety: No malfunctions of machines and systems caused by short-circuits to the ground. X High efficiency: Prevention of costly plant shut-downs, production downtime or data loss thanks to timely notification....

Insulation monitoring of AC/DC networks VARIMETER IMD Insulation monitoring device (abbreviated: IMD), monitors the insulation resistance in non-earthed systems (IT systems). DIN VDE 0100-410 and DIN VDE 0100-710 standards mandate the use of an insulation monitoring device in non-earthed systems, in order to detect a first occurring fault between an active conductor and a component or against the ground. The IMD has to emit an optical and / or acoustic signal if a first fault occurs. Disturbances which are the result of insulation faults and costly operational downtimes, personal and other damage...

Operating principle Insulation monitor (IMD) The insulation monitoring device is connected between the active mains conductors and the ground. When the measurement process is active, it supplies the mains with a measuring voltage. If an insulation fault occurs, the measuring circuit will close and a small current, proportional to the insulation fault will flow. This measuring current is evaluated by the electronic system of the device. If the insulation resistance falls below a certain value (response value), a message is issued via the device. Insulation monitoring devices of the VARIMETER IMD...

Insulation monitoring of AC/DC networks VARIMETER IMD VARIMETER IMD -Insulation monitor RL 5889 The RL 5889 insulation monitor from the VARIMETER IMD family is a solution for optimal insulation monitoring in modern IT systems. The device can be used flexibly in AC, DC, and mixed AC/DC networks. Device parameterization and response value adjustment are simple and user-friendly thanks to two rotary switches on the front of the device. A multi-color device status LED provides user-friendly visualization of the operating states. A sealable transparent cover protects the device against unwanted manipulation....

Insulation monitoring of photovoltaic systems VARIMETER IMD Insulation monitor LK 5895 The LK 5895 insulation monitor from the VARIMETER IMD series is a solution for optimal insulation monitoring of modern IT systems. The device can be used flexibly in AC, DC, and mixed AC/DC networks, even with high network leakage capacities to PE. Your advantages at a glance XPreventive fire and system protection XFast fault localization through selective earth fault detection according to L+ and L- XUniversally applicable in unearthed AC, DC, and AC/DC networks up to 1000 V nominal voltage XSuitable for large...

Insulation monitoring of AC networks VARIMETER IMD VARIMETER IMD -Insulation monitor MK 5880N The MK 5880N insulation monitor from the VARIMETER IMD family is a standard-compliant solution for insulation monitoring of pure DC and AC IT systems. The response values can be set easily and conveniently using rotary switches on the front of the device. ► For pure DC and AC networks with 0 ... 500 V and 10 ... 1000 Hz ► Monitoring even when the network is de-energized ► Programmable for memory or hysteresis behavior ► LED indicators for operational readiness and insulation faults 2) The conditions...

Insulation monitoring of DC networks VARIMETER IMD VARIMETER IMD -Insulation monitor RL 5881 The RL 5881 insulation monitor from the VARIMETER IMD family is a solution for optimal insulation monitoring of modern DC-IT systems. The response value can be set easily and conveniently using a rotary switch on the front of the device. A multi-color device status LED provides user-friendly visualization of the operating states. A sealable transparent cover protects the device against unwanted tampering. ► Can be used in ungrounded DC-IT networks up to max. 300 V ► For network leakage capacitances up...

Insulation monitoring of DC charging stations VARIMETER IMD Insulation monitor RN 5893 The RN 5893 insulation monitor from the VARIMETER IMD family is used specifically in DC charging stations in accordance with the UL 2231 standard and, in conjunction with the RP 5898 ballast, monitors the charging process from the charging station to the vehicle. The device is characterized by its short response delay, a rated voltage of up to DC 1000 V with coupling device, and the detection of both asymmetrical and symmetrical insulation faults. The RN 5893 insulation monitor also has a Modbus RTU interface....

Insulation monitoring of mobile power generators VARIMETER IMD Insulation monitor RN 5897/300 The RN 5897/300 insulation monitor from the VARIMETER IMD series was developed specifically for use in mobile power generators. In mobile applications, such as in emergency vehicles or on construction sites, personal injury and property damage caused by electrical energy must be reliably prevented. Nevertheless, the mobile power generator must be ready for immediate use, even without time-consuming setup of protective measures. For this reason, there is the possible protective measure „protective separation...