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Mitsubishi Q312B
by Mitsubishi Electric
Read verified buyer reviews ↓OverviewThe Mitsubishi Electric Q312B is a meticulously engineered 12-slot main base unit, forming the foundational backbone for sophisticated MELSEC-Q Series Programmable Logic Controllers (PLCs). This robust base unit provides an indispensable platform for seamlessly integrating essential PLC components, including the CPU, power supply, and a diverse array of I/O modules. Its design facilitates the execution of complex automation tasks with unparalleled reliability and efficiency across a multitude of industrial environments. The Q312B is not merely a mounting solution; it's a critical component that ensures the stability and longevity of your automation infrastructure, allowing for scalable and high-performance control systems.Key Features High Module Capacity: Boasts 12 dedicated slots, intelligently configured with one slot for the power supply, one for the CPU, and ten versatile slots for I/O or specialized function modules, enabling comprehensive system expansion. Broad Compatibility: Engineered for perfect synergy with the entire spectrum of MELSEC-Q Series modules, including powerful Q173/Q172 motion controllers, ensuring seamless integration and optimal performance. Flexible Mounting Options: Primarily designed for secure panel mounting, with the flexibility to adapt to DIN rail mounting through the use of an optional adapter, providing installation versatility. Industrial-Grade Construction: Manufactured with durable materials and precision engineering, guaranteeing exceptional resilience and a long operational lifespan even in the most demanding industrial settings. Optimized for MELSEC-Q Series: Specifically tailored to maximize the potential of Mitsubishi Electric's renowned MELSEC-Q Series PLCs, offering an integrated and high-performance solution. Technical Specifications Model: Q312B Series: MELSEC-Q Dimensions (W × H × D): Approximately 439 × 98 × 44.1 mm Weight: Approximately 0.45 kg Operating Temperature: 0°C to 55°C Storage Temperature: -25°C to 75°C Certifications: CE, UL, cUL, UKCA, EAC – ensuring compliance with international safety and quality standards. Environmental Compliance: Fully RoHS compliant, demonstrating a commitment to environmental responsibility. ApplicationsThe Mitsubishi Electric Q312B main base unit is an essential component for a vast array of industrial applications requiring robust and flexible automation solutions. Its high slot count and compatibility with diverse MELSEC-Q modules make it ideal for: Advanced Factory Automation Systems: Forming the core of automated manufacturing lines, robotic control, and assembly processes, enhancing productivity and precision. Precision Process Control: Critical for industries such as chemical, food and beverage, and pharmaceutical, where accurate and reliable control of various processes is paramount. Dynamic Motion Control Applications: Supporting complex multi-axis motion control systems, ensuring smooth and synchronized movements for sophisticated machinery. Large-Scale I/O Configurations: Enabling the integration of a high number of input and output devices, crucial for comprehensive monitoring and control in expansive systems. Modular PLC System Expansions: Providing the necessary infrastructure for growing automation needs, allowing for easy and efficient system upgrades and modifications. Why ChooseChoosing the Mitsubishi Electric Q312B 12-Slot Main Base Unit means investing in reliability, flexibility, and performance for your industrial automation needs. This model stands out due to: Exceptional Capacity: With the ability to house up to 12 modules, the Q312B facilitates extensive and intricate system configurations, empowering engineers to design highly customized and powerful automation solutions without compromise. Unrivaled Versatility: Its seamless compatibility with a broad spectrum of MELSEC-Q Series modules ensures that you can always find the right components for your specific application, maximizing system adaptability. Order NowElevate your industrial automation capabilities with the Mitsubishi Q312B 12-Slot Main Base Unit. Contact Palm Parts Solution today to discuss your project requirements and secure this essential component for a reliable and flexible PLC system.FAQWhat is the primary function of the Mitsubishi Q312B?The Q312B serves as the main base unit for MELSEC-Q Series PLCs, providing a foundational platform to integrate CPU, power supply, and I/O modules.How many modules can the Q312B accommodate?It supports a total of 12 modules, including dedicated slots for the power supply and CPU, along with ten versatile slots for I/O or specialized function modules.Is the Q312B compatible with all MELSEC-Q Series modules?Yes, it is engineered for full compatibility with the entire range of MELSEC-Q Series modules, including motion controllers.What are the typical mounting options for this unit?Primarily designed for panel mounting, it also offers adaptability for DIN rail mounting with an optional adapter.What environments is the Q312B suitable for?Its industrial-grade construction and wide operating temperature range make it suitable for demanding industrial environments requiring robust and reliable automation.
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Mitsubishi Q312B
Overview
This is a genuine Mitsubishi Electric component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Mitsubishi Electric catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Mitsubishi Electric automation ecosystem
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Mitsubishi Electric equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Mitsubishi Electric catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Mitsubishi Electric platform with documented conversion notes
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Model: Q312B
- Series: MELSEC-Q
- Dimensions (W × H × D): Approximately 439 × 98 × 44.1 mm
- Weight: Approximately 0.45 kg
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 75°C
- Certifications: CE, UL, cUL, UKCA, EAC – ensuring compliance with international safety and quality standards.
- Environmental Compliance: Fully RoHS compliant, demonstrating a commitment to environmental responsibility.
Applications
The Mitsubishi Electric Q312B main base unit is an essential component for a vast array of industrial applications requiring robust and flexible automation solutions. Its high slot count and compatibility with diverse MELSEC-Q modules make it ideal for:
- Advanced Factory Automation Systems: Forming the core of automated manufacturing lines, robotic control, and assembly processes, enhancing productivity and precision.
- Precision Process Control: Critical for industries such as chemical, food and beverage, and pharmaceutical, where accurate and reliable control of various processes is paramount.
- Dynamic Motion Control Applications: Supporting complex multi-axis motion control systems, ensuring smooth and synchronized movements for sophisticated machinery.
- Large-Scale I/O Configurations: Enabling the integration of a high number of input and output devices, crucial for comprehensive monitoring and control in expansive systems.
- Modular PLC System Expansions: Providing the necessary infrastructure for growing automation needs, allowing for easy and efficient system upgrades and modifications.
Why Choose the Q312B?
Choosing the Mitsubishi Electric Q312B 12-Slot Main Base Unit means investing in reliability, flexibility, and performance for your industrial automation needs. This model stands out due to:
- Exceptional Capacity: With the ability to house up to 12 modules, the Q312B facilitates extensive and intricate system configurations, empowering engineers to design highly customized and powerful automation solutions without compromise.
- Unrivaled Versatility: Its seamless compatibility with a broad spectrum of MELSEC-Q Series modules ensures that you can always find the right components for your specific application, maximizing system adaptability.
Availability & Shipping
- ▸In stock: Q312B ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every Q312B ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Mitsubishi Electric
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New, surplus, and refurbished Mitsubishi Electric inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.