# Moeller EMR4-F500-2 3 Phase Monitoring Relay - Industrial Protection

The **Moeller EMR4-F500-2 3 Phase Sequence Monitoring Relay** is a critical component for safeguarding three-phase power systems. Designed for industrial applications, this relay ensures the correct phase sequence, protecting valuable equipment and machinery from potential damage. It's a dependable solution for maintaining the smooth operation of your electrical circuits.

This relay is engineered to monitor three-phase systems operating between 200V and 500V at 50/60Hz. The **EMR4-F500-2** relay offers reliable performance with its 2 C/O contacts, capable of handling a maximum voltage of 250V and a current of 4A AC15. It adheres to the B300 VDE 0435 and VDE 0110 standards, promising secure and dependable operation in diverse industrial environments.

**Key Features:**

-   **3 Phase Sequence Monitoring:** Ensures proper phase sequence for equipment protection.
-   **Wide Voltage Range:** Compatible with 200V to 500V systems.
-   **Reliable Contacts:** Features 2 C/O contacts for efficient control.
-   **Compact Design:** Lightweight and easy to install.
-   **Safety Standards:** Compliant with B300 VDE 0435 and VDE 0110.

**Specifications:**

-   Part Number: **EMR4-F500-2**
-   Voltage Range: 200V - 500V
-   Current Rating: 4A AC15
-   Frequency: 50/60Hz
-   Contact Type: 2 C/O
-   Weight: 120 grams

The **Moeller EMR4-F500-2** relay is a trusted solution for phase sequence monitoring, providing essential protection for your industrial systems. Choose the **EMR4-F500-2** for reliable performance and peace of mind in your automation setup. For any inquiries, you can contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Moeller
- **Type:** Industrial Automation > Relays > Phase Monitoring Relays
- **Tags:** 3 phase monitoring relay, EMR4-F500-2, industrial automation, Moeller, phase sequence protection, power monitoring, Ram Automations, voltage relay

## Variants

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

## Images

- Moeller EMR4-F500-2 3 Phase Monitoring Relay - Industrial Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/moeller-emr4-f500-2-phase-monitoring-relay)
> Updated: 2026-09-19