# FRT 220-0 Frequency Relay by Leonhard-reglerbau - Precision Control

The **FRT 220-0 Frequency Relay** by **Leonhard-reglerbau** is engineered for precise frequency monitoring and control in industrial applications. This robust device, part of the **FRT series**, ensures reliable performance in demanding environments. Designed by Leonhard-reglerbau GmbH, this relay is a crucial component for maintaining the stability and efficiency of your systems.

The **FRT 220-0** operates within a voltage range of 230V (50Hz), covering 165 to 300V, with a frequency measuring range of 40 to 70Hz. Its response time for relay 1 is adjustable from 0 to 9.9 seconds, complemented by a 0.1Hz hysteresis for stable frequency control. This compact unit, weighing only 520 grams, provides accurate and dependable frequency management.

Key Features:

-   **Precision Frequency Monitoring**: Accurate measurement within 40 to 70Hz.
-   **Wide Voltage Range**: Operates effectively from 165 to 300V.
-   **Fast Response Time**: Relay 1 responds quickly, ranging from 0 to 9.9 seconds.
-   **Stable Hysteresis**: Ensures reliable frequency control with a 0.1Hz setting.
-   **Durable Design**: Lightweight at 520 grams, suitable for various applications.

Specifications:

Voltage: 230V

Frequency: 50Hz

Measuring Range: 40-70Hz

The **FRT 220-0 Frequency Relay** by **Leonhard-reglerbau** is an excellent choice for maintaining optimal frequency control in industrial settings. Trust in the quality and performance of this relay to enhance the efficiency and reliability of your automation systems. For further assistance or inquiries, please contact Ram Automations at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Leonhard-reglerbau
- **Type:** Industrial Automation > Frequency Relays > FRT Series
- **Tags:** 230V relay, frequency relay, frequenzrelais, FRT 220-0, industrial automation, Leonhard-reglerbau, under frequency relay

## Variants

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

## Images

- FRT 220-0 Frequency Relay by Leonhard-reglerbau - Precision Control-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/frt-220-0-frequency-relay-leonhard-reglerbau)
> Updated: 2026-10-02