# Insulation Monitor D78120 E Dold & Sohne - Electrical Safety

The **Insulation Monitor Varimeter D78120** by **E Dold & Sohne**, part of the **AN5871** series, is a critical component for ensuring the safety and efficiency of electrical systems. This device is engineered to meticulously monitor insulation levels, promptly detecting potential faults and preventing electrical hazards in industrial applications. Designed for reliability, the D78120 offers precise measurements and robust performance, making it an indispensable tool for electrical engineers and technicians.

With an operating voltage range from 220V to 500V and an AC frequency range of 40-400Hz, this **varimeter** offers versatility in various industrial settings. Its **AC11 3A/250V** rating and RP of 10k guarantee durable operation, complying with **VDE0110 standards**. The **D78120** is a top-tier solution for maintaining the integrity of electrical systems, ensuring operational safety and minimizing downtime.

-   **Precise Monitoring** Detects insulation faults accurately.
-   **Wide Voltage Range** Suitable for diverse industrial applications.
-   **Robust Build** Ensures long-lasting operational reliability.
-   **Standards Compliant** Meets VDE0110 requirements.
-   **Versatile Use** Adaptable to various power supply configurations.

Invest in the **E Dold & Sohne Insulation Monitor Varimeter D78120** for superior insulation monitoring and enhanced safety in your electrical systems. This device provides peace of mind and is essential for maintaining the highest standards of safety and operational efficiency. Contact us at [info@ramautomations.com](mailto:info@ramautomations.com) for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** E Dold & Sohne
- **Type:** Industrial Automation > Electrical Components > Insulation Monitors
- **Tags:** AN5871, D78120, E Dold & Sohne, electrical safety, industrial automation, insulation monitor, insulation monitoring, varimeter

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Insulation Monitor D78120 E Dold & Sohne - Electrical Safety-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/d78120-e-dold-sohne-insulation-monitor)
> Updated: 2026-09-18