Description
Schmersal SRB-MSK-QS-24VDC 6406502
Reliable 24 VDC safety monitoring for machine protection circuits in a compact DIN-rail format.
| Brand | Schmersal |
| Model | SRB-MSK-QS-24VDC 6406502 |
| Voltage | 24 VDC |
| Country of Origin | Germany |
| Weight | Approximately 0.2 kg |
| Dimensions | 22.5 x 100 x 120 mm |
| Warranty | 6 months |
| Certifications | CE, UKCA, EN ISO 13849-1, EN 60204-1 |
| SKU / MPN | SRB-MSK-QS-24VDC 6406502 |
| What’s in the box | Safety relay module, product documentation |
| Product Type | Safety relay module |
| Safety Function | Emergency stop and guard monitoring |
| Input Voltage | 24 VDC |
| Mounting | 35 mm DIN rail |
| Safety Category | Up to Category 4, PL e |
| Contact Configuration | Safety relay outputs with auxiliary signaling contact |
Key benefits: Supports high-integrity emergency-stop and guard circuits, compact installation, clear diagnostic indication, straightforward panel integration, and dependable switching of safety outputs.
Typical applications: Machine guarding, emergency-stop circuits, access-door monitoring, conveyor systems, packaging equipment, presses, and automated production lines.
Lifecycle: New product with active industrial use; expected long service life subject to manufacturer availability and application conditions.
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.





Thomas K. –
Received the connectors and cables quickly. All items were as described.