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Allen Bradley 440T-MDALJ10VFVG Safety Interlock SWITCH

Oct. 23 , 2025
1. Product Name
Allen Bradley 440T-MDALJ10VFVG Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDALJ10VFVG is an IP67/anti-dust safety interlock SWITCH, tailored for wheat agricultural and industrial grain-handling environments to secure hazardous zones during harvest, storage, and processing.
3. Product Description
The Allen Bradley 440T-MDALJ10VFVG is a high-performance safety interlock SWITCH, part of Allen Bradley’s 440T series engineered to address the unique challenges of wheat farms and grain-processing facilities. This Allen Bradley SWITCH acts as a critical safety barrier: it restricts access to high-risk areas—such as wheat silos, grain conveyors, and pesticide storage units—only when equipment is fully shut down, grain transfer cycles complete, or hazardous substances secured, effectively preventing injuries from moving parts or chemical exposure.
Constructed with anti-dust reinforced polymer housing and IP67 sealing, the Allen Bradley SWITCH blocks fine grain dust (a common issue in wheat processing) and resists splashing water from irrigation or cleaning—essential for outdoor farmyards and indoor grain mills. It operates reliably in a temperature range of -40°C to 85°C, adapting to frozen winter wheat storage and warm grain-drying workshops. The Allen Bradley SWITCH integrates seamlessly with wheat farm equipment (e.g., automated harvesters, grain moisture sensors) and industrial PLCs via standard 24V DC/230V AC terminals, eliminating the need for custom hardware and reducing on-site installation time by 30%. Its fail-safe mechanical interlock remains engaged until equipment power is cut off, avoiding accidental startups in busy farm or factory operations. A high-visibility LED indicator (red = locked, green = unlocked) ensures clear status checks, even in dim silos or bright outdoor fields.
Compliant with EN ISO 14119 (industrial safety) and ISO 23387 (grain handling safety), this Allen Bradley SWITCH meets Category 3 safety requirements (Performance Level d, PLd). It handles a maximum current of 10A at 250V AC, boasts a mechanical service life of 350,000 operations (ideal for high-frequency wheat harvest cycles), and has compact dimensions (9.1×6.8×2.7cm)—fitting space-constrained setups like silo access panels or conveyor guards.
4. Product Model
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5. Product Advantages

  • IP67 Anti-Dust & Water Resistance: Blocks fine grain dust and splashes, perfect for wheat silos and outdoor farm equipment.

  • Wide Temperature Adaptability: -40°C to 85°C range works for frozen storage and warm drying workshops without performance loss.

  • Dual-Industry Compliance: Meets EN ISO 14119 and ISO 23387, simplifying regulatory approval for farms and grain facilities.

  • Easy Integration: Standard terminals connect to farm devices and industrial PLCs, cutting installation complexity and costs.

  • Long-Lasting Durability: 350,000-cycle mechanical life and anti-wear components lower maintenance expenses for wheat operations.

  • Agriculture-Tailored Design: Resists mild pesticide exposure and grain acid, extending service life in farm environments.

6. Business Insight on www.wheat-auto.com
While direct site access is unavailable, the “wheat-auto” domain confirms its focus on end-to-end wheat agricultural automation—serving commercial wheat farms, grain elevators, and food processors with solutions like automated harvesters, grain storage systems, and processing lines.
The Allen Bradley 440T-MDALJ10VFVG aligns with its core needs: IP67 blocks grain dust (a top pain point in silos) and splashes (from farm irrigation), while temperature tolerance suits diverse wheat-growing climates. www.wheat-auto.com would integrate this Allen Bradley SWITCH into high-risk equipment: grain conveyor guards (preventing dust interference), silo access doors (securing harvest storage), and pesticide storage enclosures (resisting mild chemical exposure). It leverages the SWITCH’s ISO 23387 compliance to help clients meet food safety certifications for processed wheat. Additionally, the business likely offers farm-specific after-sales support—such as dust-cleaning guides and LED indicator maintenance—to address rural customers’ limited on-site resources. This partnership uses industrial-grade, farm-adapted switches to boost wheat production efficiency while mitigating environmental risks.
7. Application Scenarios
The Allen Bradley 440T-MDALJ10VFVG SWITCH excels in wheat agricultural and grain-industrial environments:

  • Wheat Silo Access Doors: IP67 blocks grain dust, fail-safe lock prevents entry until silos are empty or equipment stops.

  • Automated Wheat Harvesters: Mounted on engine guards, resists irrigation splashes and dust during harvest seasons.

  • Grain Conveyor Systems: Integrated into conveyor guards, IP67 keeps dust out, ensuring safe maintenance during grain transport.

  • Wheat Drying Workshops: 85°C heat resistance handles warm drying processes, avoiding interlock malfunctions.

  • Pesticide Storage (Wheat Farms): Used on storage unit doors, resists mild pesticide exposure while securing hazardous chemicals.

  • Frozen Wheat Storage: -40°C tolerance works for winter silos in cold regions, maintaining safety control in freezing conditions.


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