# Selec Phase Sequence Relay 280-520 VAC – Voltage Protection

The Selec Phase Sequence Relay 280 to 520 VAC is designed to protect industrial equipment by monitoring phase sequence and voltage. This relay ensures your systems operate within safe parameters, preventing damage from voltage fluctuations. It's ideal for use in various industrial and automation systems.

This phase sequence relay features a quick response time and reliable performance, crucial for maintaining stable electrical systems. With a phase failure trip point at less than 154V AC and a fixed phase imbalance operating range of 30V, it offers a high degree of protection. The **Selec Phase Sequence Relay** is built for optimal performance and easy integration.

-   **Voltage Protection:** Monitors and protects against voltage fluctuations.
-   **Quick Response:** Fast response time of max. 200 ms.
-   **Phase Failure Trip:** Trips at less than 154V AC.
-   **Compact Design:** Weighs only 80 gm for easy installation.

**Specifications:** Voltage range: 280 to 520 VAC. Power on delay of 200 ms. Maximum supply of 3Ø/3W no/5A, nc/3A, 250V AC, 50/60Hz. VA rating of 20VA.

Trust in the **Selec Phase Sequence Relay** for reliable electrical protection. Its robust design and efficient operation make it an essential component for any industrial setup. Contact Ram Automations for more information on how this relay can enhance your automation systems.

Contact us at: [info@ramautomations.com](mailto:info@ramautomations.com)

## Details

- **Price:** 999.0 USD
- **Vendor:** Selec
- **Type:** Industrial Automation > Power Protection > Phase Sequence Relays
- **Tags:** 280-520 VAC, automation components, industrial relay, phase failure, phase sequence relay, Selec, voltage monitoring, voltage protection

## Variants

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

## Images

- Selec Phase Sequence Relay 280-520 VAC – Voltage Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/selec-phase-sequence-relay-280-520)
> Updated: 2026-10-04