# MSR138DP Guard Master Safety Relay 440R-M23147 - Allen-Bradley

The **Allen-Bradley MSR138DP Guard Master Safety Relay**, part number **440R-M23147**, is a crucial component for ensuring safety in industrial automation systems. Designed for reliable performance, this safety relay monitors safety circuits and provides a safe output signal to stop hazardous machine motion. It is ideal for safeguarding machinery and personnel in various industrial environments. With its robust design and dependable operation, the **MSR138DP** offers peace of mind.

This safety relay operates with a supply voltage of 24VAC/DC at 50/60Hz. The output specifications include AC15 250V 6A and DC13 24V 3A, making it suitable for a wide range of applications. Made in Germany and UL certified, the **MSR138DP** ensures compliance with safety standards. This high-quality safety device is a dependable solution for safeguarding machinery and equipment. If you need a reliable safety solution, the **Allen-Bradley Guard Master Safety Relay** is an excellent choice.

-   **Reliable Safety:** Ensures safe operation by monitoring safety circuits.
-   **Versatile Applications:** Suitable for diverse industrial settings.
-   **High Performance:** Operates efficiently with 24VAC/DC at 50/60Hz.
-   **Durable Construction:** Manufactured in Germany for long-lasting performance.
-   **Safety Certified:** UL certified for compliance with safety standards.

**Specifications**

Supply Voltage: 24VAC/DC 50/60Hz

Output: AC15 250V 6A, DC13 24V 3A

Weight: 360 grams

Certification: UL B300, 5A

The Allen-Bradley **MSR138DP Guard Master Safety Relay** provides dependable protection for your industrial automation systems. Trust in the quality and reliability of **Allen-Bradley** products to meet your safety requirements. Contact us at [info@ramautomations.com](mailto:info@ramautomations.com) for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** Allen-Bradley
- **Type:** Industrial Automation > Safety Relays > Safety Relay
- **Tags:** 24VAC/DC, 440R-M23147, Allen-Bradley, industrial safety, MSR138DP, safety automation, safety equipment, safety relay

## Variants

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

## Images

- MSR138DP Guard Master Safety Relay 440R-M23147 - Allen-Bradley-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/msr138dp-allen-bradley-safety-relay)
> Updated: 2026-09-18