# Siemens Sirius Safety Relay 3TK28451HB40 - Industrial Automation

The **Siemens Sirius Safety Relay 3TK28451HB40** is a crucial component for ensuring safety in various industrial applications. Designed for reliability and compliance, this relay is a key part of any safety system. With the part number **3TK28451HB40**, this relay from the **Siemens Sirius 3TK28** series is built to meet the most stringent safety standards.

This safety relay is engineered to provide robust performance in demanding environments. Featuring a torque range of 7 to 10.3 lb.in (0.8 to 1.2Nm) and compatibility with PZ 2/0 connectors, it ensures secure connections. Manufactured in Germany, the **3TK28451HB40** is a dependable choice for safety-critical applications. This relay, weighing 450gm, is designed for industrial automation systems, offering a reliable solution for safety needs.

**Key Features:**

-   **Safety Compliance:** Compliant with IEC 61508 standards.
-   **High Performance:** Maximum Uimp of 500V and a maximum Ui of 50V.
-   **Durable Design:** Robust construction for long-term reliability.
-   **Easy Installation:** Compatible with PZ 2/0 connectors.

**Specifications:**

The **Siemens Sirius Safety Relay 3TK28451HB40** offers a torque range of 7 to 10.3 lb.in (0.8 to 1.2Nm). It is a reliable choice for industrial automation and safety systems. Trust Siemens for all your automation needs.

For enhanced safety in your industrial applications, the **Siemens Sirius Safety Relay 3TK28451HB40** is an excellent choice. Enhance your industrial or automation systems with the reliability of Siemens. Contact [info@ramautomations.com](mailto:info@ramautomations.com) Ram Automations for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Safety Components > Safety Relays
- **Tags:** 3TK28451HB40, industrial automation, safety relay, safety relay for machinery, safety systems, Siemens

## Variants

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

## Images

- Siemens Sirius Safety Relay 3TK28451HB40 - Industrial Automation-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-sirius-3tk28451hb40-relay)
> Updated: 2026-10-02