SIEMENS 505-4916A Relay Output Module | Replacement, Equivalent & Selection Guide
The SIEMENS 505-4916A is a relay output module designed for the SIEMENS SIMATIC 505 series PLC platform. It provides reliable discrete output control for industrial automation systems requiring isolated relay contacts. This page covers full technical specifications, compatible replacement models, application scenarios, and sourcing guidance to help engineers and procurement teams make confident selection decisions.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | SIEMENS |
| Part Number | 505-4916A |
| Module Type | Relay Output Module |
| Platform | SIMATIC 505 Series PLC |
| Output Type | Relay (dry contact) |
| Number of Outputs | 16 points (typical for 505-4916A) |
| Output Voltage Range | AC/DC (contact rated) |
| Contact Rating | 2A per point (typical) |
| Isolation | Optically isolated outputs |
| Backplane Interface | SIMATIC 505 I/O bus |
| Operating Temperature | 0°C to 60°C |
| Weight | 700 g |
| Housing | Standard 505-series module form factor |
Note: Always verify specifications against the official SIEMENS 505-4916A datasheet for your specific revision. Contact us if you need the datasheet.
Compatible Replacement & Equivalent Models
When the 505-4916A is unavailable or end-of-life, the following models are commonly evaluated as functional equivalents or drop-in replacements. Compatibility must be verified against your system configuration before installation.
| Model | Brand | Output Type | Points | Compatibility Notes |
|---|---|---|---|---|
| 505-4916B | SIEMENS | Relay | 16 | Revised version; direct replacement in most applications |
| 505-4908A | SIEMENS | Relay | 8 | Reduced point count; suitable for smaller I/O requirements |
| 505-4932A | SIEMENS | Relay | 32 | Higher density; verify backplane slot compatibility |
| IC693MDL940 | GE Fanuc | Relay | 16 | Cross-platform; requires I/O mapping reconfiguration |
| 1756-OW16I | Allen-Bradley | Relay (isolated) | 16 | ControlLogix platform; not plug-compatible, requires migration |
Important: Cross-brand replacements require full system re-engineering. Contact our technical team for migration support.
Why Choose the Original Model
- Guaranteed compatibility with existing SIMATIC 505 racks, backplanes, and programming software (TISOFT/STEP 5)
- No reconfiguration required — drop-in replacement preserves existing I/O addressing
- Proven field reliability in continuous industrial environments
- Relay contact isolation protects PLC backplane from load-side voltage transients
- Spare parts availability — Konmask.com maintains stock of legacy 505-series modules for MRO and emergency replacement
Typical Applications
- Motor starter and contactor control in manufacturing lines
- Valve actuation in process automation (oil & gas, chemical, water treatment)
- Conveyor and material handling system control
- HVAC and building automation relay switching
- Legacy PLC system maintenance and MRO (Maintenance, Repair & Operations)
- Panel board discrete output control in power distribution
System Compatibility
- PLC Platform: SIEMENS SIMATIC 505 series (TI 505, Series 505)
- Compatible Racks: 505-6860, 505-6870, 505-6880 and other standard 505 I/O racks
- Programming Software: TISOFT, STEP 5 (legacy), compatible with 505 CPU modules
- Power Supply: Powered via 505 backplane; no external module power required
- Not compatible with SIMATIC S7-300/400/1500 series without hardware migration
Selection Guide
Use the following criteria to confirm the 505-4916A is the right module for your application:
- Platform match: Confirm your rack is SIMATIC 505 series
- Output count: 16 relay outputs required? If fewer, consider 505-4908A; if more, consider 505-4932A
- Load type: Relay outputs are ideal for AC/DC mixed loads and inductive loads (motors, solenoids)
- Current rating: Verify per-point load does not exceed rated contact current
- Revision: Check your existing module revision (A/B suffix) for exact match if required by your maintenance protocol
- Lifecycle status: 505-series is legacy/discontinued by SIEMENS; plan for long-term migration if uptime is critical
Quality Assurance & Sourcing
- All modules sourced from authorized distributors or verified surplus channels
- Each unit undergoes visual inspection and functional verification before shipment
- Original packaging and labeling preserved where available
- Traceability documentation available upon request (COC, test reports)
- Warranty: 90-day replacement warranty on all stocked units
- Export compliance: ECCN classification and export documentation available for international orders
How to Order
- Confirm part number: SIEMENS 505-4916A
- Specify quantity and required delivery timeline
- Contact us via email or phone for stock confirmation and pricing
- Receive proforma invoice and arrange payment
- Module ships with inspection report and packing list
📧 support@konmask.com | 📞 +0086 19859288691 | 🌐 konmask.com
Replacement & Compatibility FAQ
Q: Is the 505-4916A still in production?
A: No. The SIMATIC 505 series has been discontinued by SIEMENS. Konmask.com supplies new-surplus and refurbished units for MRO support.
Q: Can I replace 505-4916A with a 505-4916B?
A: In most cases yes — the B revision is a direct functional replacement. Verify with your system documentation or contact us for confirmation.
Q: Will this module work in an S7-300 rack?
A: No. The 505-4916A is exclusively compatible with SIMATIC 505 series racks and is not interchangeable with S7-300/400/1500 hardware.
Q: Do you provide a warranty?
A: Yes. All units carry a 90-day replacement warranty. Extended warranty options are available — contact us for details.
Q: Can you supply documentation or datasheets?
A: Yes. Original SIEMENS datasheets and test certificates are available upon request.
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Contact: support@konmask.com | +0086 19859288691
