Siemens 6ES7322-8BF00-0AB0 Relay Digital Output Module – SIMATIC S7-300 SM 322
When a digital output module fails on the production floor, the consequences are immediate and costly: actuators freeze, conveyor lines halt, and safety interlocks lose their command signals. In process-critical environments — from automotive assembly to chemical dosing systems — a single unreliable output channel can cascade into hours of unplanned downtime. The Siemens 6ES7322-8BF00-0AB0 is engineered to eliminate that risk, delivering robust relay-based digital output control that keeps your automation system commanding field devices with precision and confidence.
Within the SIMATIC S7-300 Signal Module (SM 322) family, the 6ES7322-8BF00-0AB0 occupies a specialized position as a relay output module capable of switching both AC and DC loads — a versatility that pure transistor output modules cannot match. Globally, the S7-300 platform remains one of the most widely deployed mid-range PLC architectures in industrial automation, and the SM 322 series is the backbone of its digital output infrastructure across thousands of installations in manufacturing, energy, and infrastructure sectors worldwide.
Technical Specifications
- Order Number (SKU): 6ES7322-8BF00-0AB0
- Module Type: SM 322 Digital Output Module (Relay)
- Series: SIMATIC S7-300
- Number of Outputs: 8 relay outputs (isolated)
- Output Voltage Range: 24 VDC to 230 VAC
- Rated Output Current: 2 A per channel
- Contact Type: Relay (NO contact)
- Galvanic Isolation: Yes, between channels and backplane bus
- Backplane Bus Interface: S7-300 standard backplane
- Power Supply: Via S7-300 backplane (no separate 24 VDC supply required for logic)
- Dimensions (W×H×D): 40 mm × 125 mm × 120 mm
- Weight: Approx. 247 g
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +70 °C
- Degree of Protection: IP 20
- Standards: CE, UL, cULus
Key Features & Benefits
- AC/DC Universal Switching: Relay contacts support both AC (up to 230 V) and DC loads, eliminating the need for separate interposing relays in mixed-voltage installations.
- Galvanic Isolation: Each relay output is electrically isolated from the S7-300 backplane bus, protecting the CPU and other modules from field-side voltage transients.
- High Switching Reliability: Industrial-grade relay contacts rated for millions of switching cycles, ensuring long service life in high-cycle applications.
- Plug-and-Play Integration: Installs directly onto the S7-300 rail without tools; recognized automatically by STEP 7 and TIA Portal hardware configuration.
- Diagnostic Capability: Supports module-level diagnostics via the S7-300 backplane, enabling fault detection without physical inspection.
- Compact Form Factor: Standard S7-300 single-width module footprint minimizes cabinet space consumption.
Industry & Equipment Applications
- Manufacturing & Assembly: Controlling solenoid valves, motor starters, and indicator lamps on automotive and electronics assembly lines.
- Water & Wastewater Treatment: Switching pump contactors, valve actuators, and alarm outputs in water treatment plants.
- Oil & Gas: Commanding field devices in wellhead control panels and pipeline monitoring stations.
- Building Automation: HVAC damper actuators, lighting control, and fire suppression system interfaces.
- Food & Beverage: Hygienic process control where relay isolation prevents cross-contamination of control signals.
- Power Generation & Distribution: Substation automation and generator control panel output switching.
System Integration & Compatible Parts
The 6ES7322-8BF00-0AB0 integrates seamlessly within the SIMATIC S7-300 ecosystem. Compatible and commonly paired components include:
- CPUs: S7-300 CPU 314, CPU 315-2 DP, CPU 317-2 PN/DP, and all standard S7-300 CPUs
- Power Supplies: 6ES7307-1BA01-0AA0 (PS 307 2A), 6ES7307-1EA01-0AA0 (PS 307 5A)
- Digital Input Modules: 6ES7321-1BH02-0AA0 (SM 321, 16 DI × 24 VDC)
- Rack / Rail: 6ES7390-1AE80-0AA0 (S7-300 mounting rail)
- Front Connector: 6ES7392-1BM01-0AA0 (40-pin front connector)
- Programming Software: SIMATIC STEP 7 V5.x / TIA Portal V13 and above
Our Quality Assurance Process
At Konmask.com, every SIMATIC module undergoes a rigorous multi-stage verification process before shipment:
- Authenticity Verification: Each unit is cross-referenced against Siemens factory serial number databases and inspected for genuine labeling, holographic seals, and PCB markings.
- Functional Testing: Output relay switching is verified under load conditions using calibrated test equipment.
- Visual Inspection: Connectors, housing, and front panel are inspected for physical damage, corrosion, or signs of refurbishment.
- Packaging Integrity: Units are shipped in anti-static packaging with moisture barrier protection, suitable for international air and sea freight.
- Documentation: Certificate of conformity and test report available upon request.
How to Order
- Submit your inquiry via the Contact / Request a Quote form on this page, or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation with lead time and shipping options within 24 business hours.
- Confirm the order and complete payment via T/T bank transfer or other agreed method.
- Track your shipment with the provided AWB or tracking number.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation: Focused exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- ✅ Global Shipping: Export experience to 50+ countries with proper commercial documentation (invoice, packing list, COO).
- ✅ Competitive Lead Times: In-stock items ship within 3–5 business days; sourced items within 2–4 weeks.
- ✅ Technical Support: Pre-sales engineering consultation available to confirm compatibility before purchase.
- ✅ Warranty: 12-month warranty on all supplied modules against manufacturing defects.
- ✅ Trusted by Engineers Worldwide: Serving MRO buyers, system integrators, and OEMs across Asia, Europe, and the Americas.
Frequently Asked Questions
Q: Is the 6ES7322-8BF00-0AB0 compatible with S7-400 systems?
A: No. This module is designed exclusively for the SIMATIC S7-300 backplane. For S7-400 applications, please refer to the SM 422 series.
Q: Can I use this module to switch 230 VAC loads directly?
A: Yes. The relay contacts are rated for up to 230 VAC / 2 A, making it suitable for direct switching of AC contactors, solenoids, and lamps without interposing relays.
Q: What front connector is required?
A: The 40-pin front connector 6ES7392-1BM01-0AA0 is required. It is sold separately and must be ordered alongside the module if not already available.
Q: Do you supply new or refurbished units?
A: We supply both new (factory-sealed) and tested used/refurbished units. Please specify your preference when requesting a quote. All units are functionally tested regardless of condition.
Q: How long does international shipping take?
A: Typical transit times are 5–10 business days by air express (DHL/FedEx/UPS) and 25–40 days by sea freight, depending on destination.
Q: Can you provide an export invoice and certificate of origin?
A: Yes. We provide full export documentation including commercial invoice, packing list, and certificate of origin (China) for customs clearance purposes.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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