Description
DOLD Safety Relay BH5903 – Reliable Industrial Safety Control Device
Ensures reliable and safe control of industrial machinery with advanced safety relay technology.
| Brand | DOLD |
| Model | BH5903 |
| Voltage | 24 V DC |
| Country of Origin | Germany |
| Weight | 150 g |
| Dimensions | 90 x 22.5 x 114 mm (HxWxD) |
| Warranty | 2 years |
| Certifications | CE, UL, T?V |
| SKU / MPN | BH5903 |
| What’s in the box | Safety relay unit, mounting instructions, warranty card |
| Contact Configuration | 3 NO + 1 NC |
| Response Time | ≤ 20 ms |
| Operating Temperature | -25°C to +60°C |
| Mounting Type | DIN rail |
| Input Current | ≤ 50 mA |
| Safety Category | Category 4 / PL e |
| Reset Type | Manual and automatic reset |
Key benefits: Provides high reliability and fast response times for industrial safety applications, ensuring compliance with international safety standards and reducing downtime.
Typical applications: Machine safety control, emergency stop circuits, safety gate monitoring, and industrial automation systems.
Order number: DOLD Safety Relay BH5903 – Reliable Industrial Safety Control Device
Lifecycle: Active product with ongoing support and availability.
Documentation: User manual, wiring diagrams, and safety certification documents available upon request.
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.






Anonymous (verified owner) –
Received coin as listed. Great seller.