Genuine SIEMENS 6ES5451-4UA12 Digital Input Module | SIMATIC S5 – Verified Source
The SIEMENS 6ES5451-4UA12 is a 32-channel digital input module designed for the SIMATIC S5 programmable logic controller family. Sourced directly through verified industrial supply channels, every unit sold by Konmask.com undergoes rigorous multi-step inspection before dispatch. Whether you are maintaining legacy automation infrastructure or executing a controlled system upgrade, this module delivers the reliability your operation demands.
Technical Specifications
- Part Number: 6ES5451-4UA12
- Manufacturer: SIEMENS AG
- Product Family: SIMATIC S5
- Module Type: Digital Input Module
- Number of Inputs: 32 channels
- Input Voltage: 24 V DC
- Signal Level (1-signal): 13–33 V DC
- Signal Level (0-signal): 0–5 V DC
- Input Current (per channel): approx. 7 mA at 24 V DC
- Isolation: Optocoupler isolation between field and backplane
- Backplane Bus: SIMATIC S5 parallel bus
- Dimensions (W×H×D): Standard S5 single-width module
- Weight: approx. 400 g
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +70 °C
- Relative Humidity: 5–95% (non-condensing)
- Degree of Protection: IP20
- Certifications: CE, UL (refer to original nameplate)
Our 4-Step Quality Verification Process
Every 6ES5451-4UA12 unit shipped from Konmask.com passes through the following verification stages before it reaches you:
- Step 1 — Visual Inspection: Full external examination for physical damage, counterfeit markings, and label authenticity. Lot codes and date codes are cross-referenced against manufacturer records.
- Step 2 — Functional Bench Test: Module is powered and all 32 input channels are exercised using calibrated test signals to confirm correct logic-level response.
- Step 3 — Firmware & Hardware Revision Check: Hardware revision is documented and disclosed in the shipment record. No undisclosed substitutions.
- Step 4 — Packaging & Documentation Audit: Unit is repackaged in anti-static ESD-safe materials. A test report and traceability document accompany every order.
Key Features & Benefits
- ✅ 32 isolated digital inputs — high channel density reduces rack space and wiring complexity
- ✅ 24 V DC field voltage — compatible with standard industrial sensor and switch outputs
- ✅ Optocoupler isolation — protects the CPU backplane from field-side transients and noise
- ✅ Drop-in replacement — fully compatible with existing SIMATIC S5-115U, S5-135U, and S5-155U racks
- ✅ Proven legacy platform — supports long-running production lines without costly system migration
- ✅ Traceable sourcing — every unit comes with a Konmask traceability document
Typical Applications
- Manufacturing plant floor automation (automotive, food & beverage, chemical)
- Legacy SIMATIC S5 system maintenance and spare-parts replenishment
- Process control panels requiring high-density digital signal acquisition
- Machine tool and press control systems
- Water treatment and utilities infrastructure
- Oil & gas field instrumentation interfaces
Compatible System Components
- Compatible CPUs: SIEMENS 6ES5095-8MA02, 6ES5100-8MA02, 6ES5101-8UA13, 6ES5115-3UA11, 6ES5135-3UA41, 6ES5155-3UA11
- Compatible Racks: SIMATIC S5 ER (Expansion Rack), ZG (Central Rack)
- Compatible Power Supplies: 6ES5955-3LC41, 6ES5955-3LF41
- Recommended Cable: SIEMENS SIMATIC S5 front connector cable (6ES5490-series)
- Programming Software: STEP 5 (S5 for Windows)
Global Sourcing & Shipping Capabilities
- Stock Location: China (Mainland) — ships globally
- Lead Time: In-stock units ship within 1–3 business days; sourced units within 7–15 business days
- Shipping Methods: DHL Express, FedEx International Priority, UPS Worldwide, sea freight for bulk orders
- Export Compliance: All shipments comply with applicable export control regulations (ECCN, HS Code classification available on request)
- Customs Documentation: Commercial invoice, packing list, and certificate of origin provided for all international shipments
- Minimum Order Quantity: 1 unit (bulk pricing available for 5+ units)
Certifications & Compliance Statement
The SIEMENS 6ES5451-4UA12 is manufactured to comply with applicable IEC, EN, and UL standards for industrial programmable controllers. Konmask.com sources this product through established industrial distribution channels and does not manufacture, modify, or re-label any component. All trademarks, part numbers, and brand names referenced on this page are the property of their respective owners and are used solely for product identification purposes. Konmask.com is an independent distributor and is not an authorized SIEMENS partner unless explicitly stated.
- CE Marking: Yes (per original manufacturer specification)
- RoHS Compliance: Refer to SIEMENS product datasheet
- ESD Handling: All units handled and packaged per ANSI/ESD S20.20
How to Order
- Step 1: Confirm the part number 6ES5451-4UA12 matches your existing module label and system documentation.
- Step 2: Select quantity and add to cart, or contact us directly for bulk pricing and lead-time confirmation.
- Step 3: Provide your shipping address and preferred freight method at checkout.
- Step 4: Receive your order with full traceability documentation and our 30-day return policy for unused units.
📧 Email: [email protected]
📞 Phone/WhatsApp: +0086 19859288691
🌐 Website: https://Konmask.com
Authenticity & Trust FAQ
Q: Are these modules new or refurbished?
A: We clearly disclose the condition of each unit on the product listing. Unless stated otherwise, units are sourced as new old stock (NOS) or factory-refurbished. Condition is always documented in the shipment record.
Q: How do I verify the module is genuine SIEMENS?
A: Each unit includes a Konmask traceability document with lot code, inspection date, and test results. You may also verify the hardware revision against SIEMENS published documentation.
Q: What if the module does not work on arrival?
A: We offer a 30-day DOA (Dead on Arrival) replacement policy. Contact [email protected] with your order number and a brief fault description. We will arrange a replacement or full refund.
Q: Can you provide a datasheet or wiring diagram?
A: Yes. Contact us via email or phone and we will provide the relevant SIEMENS technical documentation for the 6ES5451-4UA12.
Q: Do you offer volume discounts?
A: Yes. Orders of 5 units or more qualify for tiered pricing. Contact us for a formal quotation.
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Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
