SIEMENS 6ES7390-1AF30-0AA0 DIN Mounting Rail – SIMATIC S7-300 Series
Imagine a production line mid-shift: a corroded or undersized mounting rail causes a SIMATIC S7-300 CPU module to lose its secure mechanical ground. Vibration-induced micro-disconnections trigger spurious faults, the PLC halts, and the entire line goes dark. Downtime costs mount by the minute. The SIEMENS 6ES7390-1AF30-0AA0 mounting rail is the silent backbone that prevents exactly this scenario — a precision-engineered DIN rail that locks every S7-300 module into a mechanically stable, electrically grounded assembly, day after day, in the harshest industrial environments.
Within the SIMATIC S7-300 ecosystem, the 6ES7390-1AF30-0AA0 is the standard 480 mm profile rail — the most widely deployed length in the S7-300 family, balancing cabinet space efficiency with module capacity. Since its introduction, the S7-300 platform has been installed in hundreds of thousands of facilities across automotive, chemical, food & beverage, and energy sectors worldwide, making genuine spare rails a critical MRO (Maintenance, Repair & Operations) commodity for plant engineers and system integrators globally.
Technical Specifications
- Manufacturer: Siemens AG
- Part Number: 6ES7390-1AF30-0AA0
- Series: SIMATIC S7-300
- Type: DIN Mounting Rail (35 mm profile)
- Rail Length: 480 mm
- Material: Galvanized steel
- Weight: approx. 500 g
- Compatible Module Slots: Supports CPU, SM, FM, CP, and IM modules of the S7-300 family
- Mounting: Screw-mount to cabinet back panel
- Grounding: Integrated PE (Protective Earth) grounding via rail-to-panel contact
Key Features & Benefits
- Genuine OEM Part: Manufactured to Siemens’ exact tolerances — ensures correct module snap-fit and bus connector alignment every time.
- Galvanized Steel Construction: Resists corrosion in humid, dusty, or chemically aggressive cabinet environments.
- Integrated PE Grounding Path: Provides a low-impedance ground reference for all mounted modules, reducing EMI susceptibility and protecting sensitive I/O circuits.
- Optimal 480 mm Length: Accommodates a typical S7-300 station (CPU + up to ~8 signal modules) without wasted cabinet space.
- Drop-in Replacement: Fully backward-compatible with all S7-300 module generations — no firmware or configuration changes required.
- Long Service Life: Designed for the full lifecycle of S7-300 installations, supporting decades of continuous industrial operation.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, and assembly robot cells using S7-300 PLCs.
- Chemical & Petrochemical Plants: Process control panels requiring robust, grounded module mounting in Zone 2 adjacent areas.
- Food & Beverage Processing: Washdown-adjacent control cabinets where corrosion resistance is essential.
- Water & Wastewater Treatment: Remote pump station panels with S7-300 CPUs managing SCADA-connected I/O.
- Energy & Power Generation: Substation automation and turbine control systems requiring long-term mechanical stability.
- Machine Tool & OEM Equipment: CNC machine control cabinets and packaging machinery with modular S7-300 architectures.
System Integration & Compatible Parts
The 6ES7390-1AF30-0AA0 rail is the mechanical foundation for a complete S7-300 station. It is compatible with the full range of SIMATIC S7-300 components, including:
- S7-300 CPU modules (e.g., CPU 314, CPU 315-2 DP, CPU 317-2 PN/DP)
- Digital and Analog Signal Modules (SM 321, SM 322, SM 331, SM 332)
- Function Modules (FM 350, FM 351, FM 355)
- Communication Processors (CP 342, CP 343)
- Interface Modules for multi-tier expansion (IM 360, IM 361, IM 365)
- Power Supply modules (PS 307)
- Bus connectors and shielding terminals (6ES7390-5AA00-0AA0, 6ES7390-5BA00-0AA0)
For multi-tier rack configurations, pair with IM 360/361 interface modules and additional rails of the appropriate length (160 mm, 530 mm, 830 mm, or 2000 mm variants).
Our Quality Assurance Process
- Source Verification: All parts are sourced from authorized Siemens distributors or verified OEM supply chains — no gray-market or counterfeit risk.
- Physical Inspection: Each rail is inspected for dimensional accuracy, surface finish, and label authenticity before dispatch.
- Packaging: Shipped in original or equivalent protective packaging to prevent transit damage.
- Documentation: Certificate of conformity and packing list provided upon request for customs and quality records.
- Traceability: Batch and lot information retained for full supply chain traceability.
How to Order
- Submit an Inquiry: Use the contact form or email support@konmask.com with your required quantity and delivery destination.
- Receive a Quotation: Our team will respond within 1 business day with pricing, lead time, and shipping options (DHL, FedEx, sea freight).
- Confirm & Pay: Orders confirmed via proforma invoice; payment via T/T bank transfer or other agreed terms.
- Shipment & Tracking: Parts dispatched with full tracking information and commercial invoice for customs clearance.
- After-Sales Support: Our technical team is available post-delivery for any installation or compatibility questions.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- B2B-First Service: Tailored for procurement engineers, MRO buyers, and system integrators who need reliable sourcing partners.
- Global Shipping: Experienced in export documentation, customs compliance, and international logistics to 50+ countries.
- Competitive Lead Times: Stock availability checked in real time; urgent orders accommodated where possible.
- Technical Expertise: Our team has hands-on experience with Siemens SIMATIC systems — we speak your engineering language.
- Transparent Communication: No hidden fees; clear quotations with itemized costs and delivery terms.
Frequently Asked Questions
Q: Is the 6ES7390-1AF30-0AA0 a genuine Siemens part?
A: Yes. We supply only genuine OEM parts sourced from verified Siemens distribution channels. Authenticity documentation is available upon request.
Q: What is the rail length of the 6ES7390-1AF30-0AA0?
A: The 6ES7390-1AF30-0AA0 is a 480 mm DIN mounting rail, the standard length for most S7-300 single-tier configurations.
Q: Can this rail be used with SIMATIC S7-400 or S7-1500 modules?
A: No. This rail is specifically designed for the SIMATIC S7-300 module family. S7-400 and S7-1500 use different rail profiles and dimensions.
Q: Do you offer other S7-300 rail lengths?
A: Yes. We stock multiple S7-300 rail lengths including 160 mm, 530 mm, 830 mm, and 2000 mm variants. Contact us with your requirements.
Q: What is the minimum order quantity (MOQ)?
A: There is no strict MOQ — we accommodate single-unit emergency orders as well as bulk procurement. Pricing scales with quantity.
Q: How long does international shipping take?
A: Express courier (DHL/FedEx) typically delivers within 3–7 business days to most destinations. Sea freight options are available for large orders.
Q: Can you provide a certificate of conformity or test report?
A: Yes, documentation including certificate of conformity and packing list can be provided upon request for quality and customs purposes.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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