6ES7221-1BH30-0XB0 Siemens SM 1221 16DI 24VDC Digital Input Module — Original Spare Parts

6ES7221-1BH30-0XB0 — Siemens SIMATIC S7-1200 SM 1221 Digital Input Module | 16DI 24VDC | Original Spare Parts

As a Procurement Manager sourcing critical PLC components, you need absolute confidence in both product authenticity and delivery reliability. The 6ES7221-1BH30-0XB0 is a factory-sealed, 100% Brand New and Factory Sealed Siemens SIMATIC S7-1200 SM 1221 Digital Input Module featuring 16 isolated 24VDC input channels. Designed for seamless integration within the S7-1200 PLC System, this Control Module delivers precision signal acquisition across the most demanding Industrial Automation environments. Every unit is verified as 100% Original and Brand New, backed by full Siemens factory documentation.

Procurement teams managing EOL legacy system upgrades or greenfield automation projects consistently specify the 6ES7221-1BH30-0XB0 for its proven compatibility across the entire SIMATIC S7-1200 CPU family — from CPU 1211C through CPU 1217C. Whether you are replacing aging I/O infrastructure in a process plant or expanding a discrete manufacturing line, this Original New Spare Parts module eliminates the risk of counterfeit components that compromise system uptime. Its galvanic isolation architecture protects the PLC System backplane from field-side electrical noise, a critical requirement in high-power switching environments.

With fast global shipping, a 1-year warranty, and full technical support, sourcing this Control Module from a verified distributor means your project timeline stays on track. Contact our team today for a competitive quote and confirmed lead time.

Technical Specifications & Selection Guide

Use the table below to confirm compatibility before ordering. The 6ES7221-1BH30-0XB0 is the standard-performance variant of the SM 1221 family, optimized for cost-effective 16-channel digital input expansion.

Selection Tip: If your application requires enhanced diagnostics or faster filter response, consider the SM 1221 variant 6ES7221-1BH32-0XB0. For 8-channel configurations, the 6ES7221-1BF32-0XB0 is the appropriate choice.

Core Features & Technical Advantages

• 100% Original and Brand New: Every 6ES7221-1BH30-0XB0 unit is factory-sealed and sourced directly from authorized Siemens supply chains — zero counterfeit risk.
• ✅ Galvanic Isolation on All 16 Channels: Robust protection against ground loops and transient voltages common in heavy-duty industrial environments.
• Precision Configurable Input Filters: Adjustable from 0.2 ms to 12.8 ms via TIA Portal, enabling the Control Module to adapt to diverse sensor signal characteristics.
• ✅ Compact Heavy-Duty Housing: 45mm-wide DIN-rail mount design maximizes panel density without sacrificing thermal performance.
• ✅ Hot-Swap Front Connector: Field-replaceable wiring connector allows module swap without rewiring — minimizing downtime in live production environments.
• ✅ Integrated LED Diagnostics: Per-channel status LEDs and TIA Portal diagnostic buffers accelerate fault isolation in complex PLC System architectures.

Typical Application Scenarios

The 6ES7221-1BH30-0XB0 is deployed across a broad spectrum of Industrial Automation sectors where reliable digital signal acquisition is non-negotiable:

• Oil & Gas: Monitors valve position feedback, emergency shutdown (ESD) switch states, and wellhead sensor arrays in hazardous-area control panels. Its galvanic isolation is essential where ground potential differences exist between field instruments and the PLC System.
• Power Plants & Utilities: Acquires status signals from circuit breakers, transformer protection relays, and turbine control interlocks. The configurable input delay filters out contact bounce from high-voltage switching gear.
• Automotive Manufacturing: Tracks limit switches, part-present sensors, and safety light curtain outputs on high-speed assembly lines. Fast 0.2 ms filter settings support precision cycle-time monitoring.
• Food & Beverage Processing: Integrates with level switches, flow detectors, and CIP (Clean-in-Place) status signals in hygienic production environments requiring IP20-rated panel installations.
• Building Automation & HVAC: Manages occupancy sensors, damper position switches, and fire alarm dry contacts within BMS architectures built on the SIMATIC S7-1200 platform.

Logistics & Professional Service

• ✅ 2-Day Express Shipping Available: Urgent project requirements are accommodated with priority air freight to major global destinations.
• ✅ 1-Year Warranty: Full coverage against manufacturing defects and performance deviations, with RMA support handled by our technical team.
• ✅ EOL Legacy System Support: We maintain stock of discontinued and hard-to-source Siemens Spare Parts, including older SM 1221 variants, to support long-lifecycle industrial installations.
• ✅ Full Documentation Package: Datasheet, EU Declaration of Conformity, and Siemens factory test certificates available upon request.
• ✅ Global Export Compliance: All shipments include commercial invoice, packing list, and Certificate of Origin as required by customs authorities worldwide.

FAQ — Frequently Asked Questions

Q: What is the price of the 6ES7221-1BH30-0XB0 and are volume discounts available?
A: Pricing for the 6ES7221-1BH30-0XB0 is competitive and reflects its 100% Original and Brand New status. Volume pricing tiers are available for orders of 5 units or more. Contact sale@ninermas.com with your required quantity and project timeline for a formal quotation within 24 hours.

Q: Is this module 100% original Siemens? Can you provide proof of authenticity?
A: Yes. Every 6ES7221-1BH30-0XB0 we supply is 100% Original and Brand New, sourced from authorized Siemens distribution channels. We can provide Siemens factory packaging photos, serial number verification, and Certificate of Origin upon request.

Q: What is the lead time for the 6ES7221-1BH30-0XB0?
A: In-stock units ship within 1-2 business days. For large-volume orders or special configurations, lead time is typically 3-7 business days. Express 2-day shipping is available for urgent Industrial Automation project requirements.

Q: Where can I download the Datasheet for the 6ES7221-1BH30-0XB0?
A: The official Siemens datasheet and manual for the SM 1221 Digital Input Module are available on the Siemens Industry Online Support portal. We can also email the datasheet and wiring diagram directly — contact sale@ninermas.com with your request.

Q: Is the 6ES7221-1BH30-0XB0 compatible with TIA Portal V16 and later?
A: Yes. This SM 1221 module is fully supported in TIA Portal V13 SP1 and all subsequent versions including V16, V17, and V18. HSP (Hardware Support Package) updates may be required for the latest TIA Portal releases.

Q: Can this module be used as a direct replacement for a failed unit in an existing S7-1200 PLC System?
A: Absolutely. The 6ES7221-1BH30-0XB0 is a drop-in replacement for any existing SM 1221 16DI 24VDC module of the same part number. The front connector is field-removable, allowing the existing wiring harness to be transferred directly to the new Control Module without modification.

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