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Allen Bradley 440T-MDALJ10IAJA Safety Interlock SWITCH

Oct. 23 , 2025
1. Product Name
Allen Bradley 440T-MDALJ10IAJA Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDALJ10IAJA is an IP67/anti-corrosion safety interlock SWITCH, tailored for wheat agricultural and extreme industrial environments to secure hazardous zone access during grain handling and machinery operation.
3. Product Description
The Allen Bradley 440T-MDALJ10IAJA is a high-performance safety interlock SWITCH, part of Allen Bradley’s 440T series engineered for ultra-harsh, corrosion-prone settings—directly addressing the needs of wheat farms and heavy industry. This Allen Bradley SWITCH serves as a non-negotiable safety barrier: it restricts entry to high-risk areas (e.g., wheat silos, grain conveyors, pesticide storage units) only when equipment is fully powered off, grain processing cycles end, or hazardous substances are neutralized, effectively preventing injuries from moving parts or chemical leaks.
Constructed with reinforced anti-corrosion alloy housing and IP67 sealing, the Allen Bradley SWITCH blocks fine grain dust, resists high-pressure water jets (up to 80bar), and endures temporary moisture exposure—critical for outdoor wheat farms exposed to rain, irrigation splashes, and grain debris. It operates reliably in a temperature range of -40°C to 85°C, adapting seamlessly to frigid winter silos and high-heat grain drying workshops. The Allen Bradley SWITCH integrates effortlessly with wheat farm devices (e.g., grain moisture sensors, harvester control systems) and industrial PLCs via standard 24V DC/230V AC terminals, requiring no custom adapters—cutting on-site installation time by 30%. Its fail-safe mechanical interlock remains engaged until equipment power is cut, avoiding accidental startups in busy farm operations. A high-visibility LED indicator (red = locked, green = unlocked) ensures clear status checks, even in dim silos or bright sunlight.
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 features 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 Robust Protection: Blocks grain dust and high-pressure water, perfectly suited for wet wheat farm environments.

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

  • Anti-Corrosion Design: Resists wheat pesticides and grain acids, extending service life by 50% compared to standard switches.

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

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

  • Long-Durable Performance: 350,000-cycle life and sealed design lower maintenance expenses for wheat farms.

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 pesticide management equipment.
The Allen Bradley 440T-MDALJ10IAJA aligns with its core needs: IP67 protects against farm rain and irrigation, anti-corrosion resists pesticides and grain acids, and temperature tolerance suits diverse climates. www.wheat-auto.com would integrate this Allen Bradley SWITCH into high-exposure equipment: outdoor silo access doors (resisting rain and dust), harvester engine guards (withstanding irrigation splashes), and pesticide storage enclosures (blocking chemical corrosion). 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 IP67 seal inspections and corrosion touch-ups—to ensure reliability during peak harvest, a critical service for rural customers with limited on-site maintenance 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-MDALJ10IAJA SWITCH excels in ultra-harsh wheat agricultural and industrial environments:
  • Outdoor Wheat Silos (Rainy Regions): IP67 resists heavy rain and grain dust, with a fail-safe lock preventing access until silos are empty.

  • Frozen Wheat Storage (Cold Climates): -40°C tolerance works for northern farm silos, avoiding freezing malfunctions in winter.

  • Automated Harvester Guards: Withstands irrigation splashes and pesticide residues, ensuring safe maintenance post-harvest.

  • Grain Drying Workshops: 85°C heat resistance handles high-temperature drying processes, blocking dust from interlock components.

  • Wheat Pesticide Cabinets: Anti-corrosion alloy resists chemical spills, with a fail-safe lock restricting access to authorized personnel only.

  • Industrial Grain Conveyors: IP67 blocks conveyor dust and water, ensuring safe maintenance during grain transport operations.


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