# Phoenix Contact ST-REL4-KG Relay Connector with Base

Upgrade your electrical connections with the **Phoenix Contact ST-REL4-KG 24/21-21/AU Relay Connector**. This reliable connector is designed for industrial and commercial applications, offering exceptional conductivity and durability.

The **ST-REL4-KG connector** features a 2.5mm2 cross-section and an isolation rating of 1kV, ensuring safe and secure operation. It handles a current of 15A and is compatible with 30-12 AWG wire sizes, making it ideal for various control systems and automation uses. The **2 CO (changeover) contacts** are made of Ag+Au material, providing excellent performance.

**Key Features:**

-   **High Conductivity:** Ag+Au contacts for reliable performance
-   **Wide Voltage Range:** Suitable for 24Vac/DC-20/+10% and 250Vac applications
-   **Durable Design:** Robust construction for long-lasting use
-   **Easy Installation:** Lightweight and compatible with various wire sizes
-   **Safe Operation:** 1kV isolation rating for secure connections

**Specifications:**

-   Voltage Rating: 24Vac/DC-20/+10%, 250Vac
-   Current Rating: 3A (250Vac), 15A (overall)
-   Contact Type: 2 CO (changeover)
-   Wire Size Compatibility: 30-12 AWG
-   Isolation Voltage: 1kV

Trust **Phoenix Contact** for reliable components in your industrial automation systems. Enhance your electrical connections with the **ST-REL4-KG Relay Connector** today.

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Electrical Components > Relays > Relay Connector
- **Tags:** automation, electrical connections, industrial relay, Phoenix Contact, relay connector, relay with base, ST-REL4-KG

## Variants

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

## Images

- Phoenix Contact ST-REL4-KG Relay Connector with Base-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/phoenix-contact-st-rel4-kg-relay-connector)
> Updated: 2026-09-19