| Sales | Phone/Whatsapp | |
| Jim Pei | [email protected] | +86 18020776782 |
| Model Number | 6ES5420-4UA14 |
| Manufacturer | Siemens |
| Product Family | SIMATIC S5 |
| Module Designation | Digital Input 420 |
| Product Type | Digital input module |
| Input Count | 32 |
| Rated Input Voltage | 24 VDC |
| Input Isolation | Non-isolated |
| Lifecycle Phase | PM500 |
| Deletion Date | 1 October 2022 |
| Successor | No direct replacement stated |
| Dimensions | 25.4 × 1.9 × 19.5 cm |
| Weight | 0.476 kg |
| Minimum Order Quantity | 1 Piece |
| Price | Contact for Jim |
| Packaging Details | Original new Factory Sealed |
| Delivery Time | 3–7 Days |
| Payment Terms | T/T |
| Shipping Method | DHL / FedEx / UPS / TNT |
| Supply Ability | Brand new, In Stock |
Siemens 6ES5420-4UA14 is a SIMATIC S5 Digital Input 420 module with 32 non-isolated inputs rated for 24 VDC signals. It provides a dense input interface for an installed S5 automation rack. Siemens lifecycle information places the article in PM500 with deletion from the portfolio on 1 October 2022. No direct successor is stated for the exact article. The rack type, connector assignment and field-signal wiring must be verified before replacement.
The 6ES5420-4UA14 is suitable for maintaining legacy machines and process panels that continue to use SIMATIC S5 hardware. It receives discrete field states and makes them available to the configured controller program. Technicians should document the original card position and input wiring before exchange. Non-isolated input architecture must be considered when reviewing the cabinet’s reference potential. Exact-article sourcing can reduce modification work during a planned S5 maintenance window.
Collects 24 VDC discrete states from sensors and control contacts.
Restores a documented 32-input slot without changing the controller architecture.
Feeds field on/off conditions into existing SIMATIC S5 logic.
A connected 24 VDC device changes the electrical state of an input point.
The module receives the state across one of its 32 channels.
Input information is transferred through the SIMATIC S5 system interface.
The controller program uses the state for logic, indication or interlocking.
Thirty-two digital input points are provided on one module.
The rated signal level suits common industrial discrete devices.
The article supports existing rack and wiring documentation.
Siemens records identify deletion timing and lack of a direct successor.
It provides 32 non-isolated digital inputs for rated 24 VDC signals.
Input reference potentials must be reviewed as part of the existing cabinet design.
No direct replacement is stated in the lifecycle information used for this article.
We check the label, board, front interface and visible contact condition before packing.
Tracking follows payment, final inspection, packing and the courier’s collection scan.
Send the rack type, slot, connector or terminal assignment and a clear original-label image.
The company began in Xiamen, Fujian, China, with a four-person team serving selected European and North American automation customers. Early work centered on building product knowledge, dependable sourcing processes, and practical international trade experience.
By 2017, the team had grown to approximately 30 people and established a warehouse for in-stock automation components. The business expanded across Europe, North America, and Southeast Asia while sourcing capabilities widened to include scarce and discontinued industrial automation parts.
In 2026, a wider professional team supports customers worldwide from inquiry through sourcing, order coordination, delivery, and after-sales communication. The company continues to supply popular, hard-to-find, and discontinued automation components while building long-term international partnerships through responsible service.
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