Fast Track to a Quote
Certification | Testing
Factory CertifiedRefund guarantee
24h refund guaranteeSecure Payment
PayPal Verified
Beckhoff Module KL6904
Payment Methods

Need a Same-Day Quote?
Need help confirming model compatibility?
100% Original
Genuine OEM PartsFast Delivery
Shipped via FedEx / DHL / UPS12-Month Warranty
Worry-Free CoverageSecure Packaging
Safe & Reliable5,000+ Global Suppliers
Trusted by Professionals
Professional Model-Matching System
Send us your model numbers or nameplate details.
We will match your request with our 5,000+ verified suppliers and issue a quotation.
Specifications
| Category/version | TwinSAFE |
| Type/signal | - |
| Channels | 4 |
| Value range (digital/encoder) | - |
| Value range (analog) | - |
| Output current | 0.5 A |
| Nominal voltage | - |
| Communication | K-bus |
| Technologies/ Highlights | - |
| Approvals | Functional safety, Explosion protection |
| PLC integrated | - |
| Input/output specification (digital) | positive switching, ground switching |
| Filter (digital) | - |
| Signal resolution (analog) | - |
| Measurement error/ uncertainty (analog) | - |
| Sampling rate/ conversion time (analog) | - |
| Sampling type (analog) | - |
| Ground reference (analog/encoder) | - |
| Sensor supply (encoder) | - |
| Incr. limit frequency (encoder) | - |
| IO-Link Port Class | - |
| Feedback (compact drive technology) | - |
| Wiring | 2-wire |
| Connection method (signal) | spring-loaded technique |
| Connection method (bus interface) | - |
| Explosion protection | not intrinsically safe, ATEX Zone 2 (gas) |
| Safety technology/ functions | TwinSAFE |
| Safety Architecture | Decentral |
| Safety Integrity Level (SIL) | 2, 3 |
| Performance Level (PL) | c, d, e |
Number of outputs: 4
Why Global Buyers Choose O&Kmarts
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: Can my organization create a dedicated corporate account with multi-user permissions for different procurement roles?
A: Yes. Our platform supports corporate account provisioning. A master account can be set up for a Procurement Director, with sub-accounts granted to field engineers (for creating technical carts) and purchasing agents (for executing payments), streamlining internal corporate approval workflows.
Q: Can we request customized modifications for heavy wear components or specialized industrial parts?
A: Through our network of partner factories and flexible manufacturing technologies, we support customized production runs for specific structural or wear components. Technical drawings (CAD/STEP files) must be submitted for engineering review and custom prototyping quotes.
Q: What is your policy if an industrial part arrives physically damaged due to improper courier handling?
A: Buyers must inspect the outer packaging and internal items immediately upon delivery. If physical damage is discovered, document the condition with photos/videos and submit a claim to OKmarts within 48 hours of receipt so we can file an immediate report with the carrier and fast-track a replacement shipment.
Related Products
Q&A
Q: Is this e-commerce platform trustworthy?
A: Yes, our e-commerce platform has been audited and certified to ensure a safe and reliable shopping environment and has a good reputation among numerous users.
Q: Is it possible to view detailed descriptions and material information of the products?
A: Yes, each product has a detailed description and material specifications. You can find relevant information on the product details page to help you gain a comprehensive understanding of the product.
Q: How can I track the logistics information of a product?
A: Once your order is shipped, you will receive a confirmation email with tracking information. You can use this information to track your order through the logistics provider's website.







