# Sentry Relay

DDY Supply offers the Sentry Relay, an ABB-manufactured safety relay designed for reliable operation in industrial electrical control systems. This product category is essential for safeguarding machinery and processes within automation and electrical distribution networks. Primarily, the Sentry Relay functions to enhance system safety by providing dependable switching and monitoring capabilities, suitable for integration in control panels and engineering projects requiring fail-safe operation.

Target customers:  
\- Electrical distributors  
\- EPC contractors  
\- System integrators  
\- Industrial buyers  
\- Engineering companies

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1\. Product Overview

DDY Supply provides industrial electrical components for global distributors, EPC contractors, system integrators and industrial buyers. The ABB Sentry Relay is engineered to perform as a safety relay within industrial environments, enabling secure switching and control functions in electrical and automation systems. It is commonly deployed in control panels, machinery safety circuits, and automation projects to ensure compliance with operational safety standards and enhance system reliability.

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2\. Key Features

-   Ensures precise safety control by reliably switching safety circuits within industrial automation systems.
-   Compact design facilitates integration into standard control panels without requiring additional space.
-   Compatible with a wide range of machinery and control systems, supporting various industrial applications.
-   Installation supports straightforward wiring and mounting, reducing setup time and minimizing errors.
-   Durable construction meets industrial operational demands, enhancing long-term system stability.

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3\. Technical Specifications

Brand

ABB

Product Type

Safety Relay

Model

Sentry Relay

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4\. Applications

The Sentry Relay is utilized extensively across industrial automation for machine safety monitoring, integration into PLC control systems, and electrical distribution safety circuits. It is applicable in manufacturing equipment, control panels, and infrastructure projects where reliable safety switching is critical. Its use supports compliance with industrial safety protocols and enhances operational efficiency in engineering projects.

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5\. FAQ

Q: Where can I buy ABB Sentry Relay from China?

A:  
DDY Supply provides safety relay components for global distributors, contractors, system integrators and engineering projects.

Q:  
What applications is the Sentry Relay suitable for?

A:  
The Sentry Relay is commonly used in industrial automation, PLC control systems, and safety circuits within manufacturing and infrastructure projects.

Q:  
Can DDY Supply provide industrial electrical components for projects?

A:  
Yes, DDY Supply supplies industrial electrical components for international projects.

## Details

- **Price:** 133.71 USD - 520.66 USD
- **Vendor:** DDY GROUP CO.,LTD.
- **Tags:** Abb, Relay, Safety Relay

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Sentry BSR10 24VDC | 133.71 USD | In stock |
| Sentry SSR10 24VDC | 247.32 USD | In stock |
| Sentry BSR23 24VDC | 175.73 USD | In stock |
| Sentry TSR20 24VDC | 247.32 USD | In stock |
| Sentry SSR20 24VDC | 271.07 USD | In stock |
| Sentry SSR32 24VDC | 395.37 USD | In stock |
| Sentry SSR42 24VDC | 395.37 USD | In stock |
| Sentry TSR10 24VDC | 318.09 USD | In stock |
| Sentry SSR20M VAC/VDC | 353.07 USD | In stock |
| Sentry BSR11 24VDC | 201.43 USD | In stock |
| Sentry USR10 24VDC | 374.22 USD | In stock |
| Sentry SSR10M VAC/VDC | 312.40 USD | In stock |
| Sentry USR22 24VDC | 520.66 USD | In stock |
| Sentry TSR20M VAC/VDC | 312.40 USD | In stock |

## Images

- Sentry Relay

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> Source: [DDY GROUP CO.,LTD.](https://ddysupply.com/products/sentry-relay)
> Updated: 2026-08-29