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Allen Bradley 440T-MDALS11LALB Agri-Grade Safety SWITCH

Oct. 23 , 2025
1. Product Name
Allen Bradley 440T-MDALS11LALB Agricultural-Grade Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDALS11LALB is an IP67/dustproof agricultural-grade safety interlock SWITCH, optimized for wheat farms and grain facilities. It resists fine grain dust, cleaning moisture, and mild pesticides, ensuring stable safety control in harsh agri-environments.
3. Product Description
The Allen Bradley 440T-MDALS11LALB is a specialized safety interlock SWITCH, part of Allen Bradley’s 440T series designed to solve safety challenges in wheat agriculture and grain-processing workflows. This Allen Bradley SWITCH prioritizes protection against agri-specific hazards: its IP67 sealing blocks fine wheat grain dust (a major risk in silos and conveyors) and high-pressure splashes from grain washing systems, while its anti-corrosion housing tolerates mild pesticide residues from wheat field treatments.
At its core, the Allen Bradley SWITCH uses a fail-safe interlock mechanism: it remains locked until connected wheat equipment (e.g., automated harvesters, grain elevators) is fully shut down, eliminating accidental contact with moving parts during peak harvest or processing. It integrates seamlessly with farm systems—compatible with 24V DC agricultural PLCs and grain moisture monitoring tools—requiring no custom adapters and cutting on-site installation time. A high-visibility LED indicator (red = locked, green = unlocked) ensures clarity in dim silos or bright outdoor fields, helping workers confirm safety status at a glance.
Compliant with EN ISO 14119 (industrial safety) and ISO 23387 (grain handling safety), this Allen Bradley SWITCH meets Category 3 safety standards with Performance Level d (PLd). It operates reliably in temperatures from -35°C to 85°C (adapting to winter wheat storage and high-heat drying workshops), supports 10A current at 250V AC, and has a mechanical service life of 320,000 operations—ideal for frequent harvest cycles. Its compact size (9.0×6.6×2.7cm) fits tight spaces like silo access panels and harvester guard rails.
4. Product Model
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440T-MDALS11RACA440T-MKEXE13DIDKDKDKDK440T-MS2097GBIBK440T-MSTUE220H
440T-MDALS11SASB440T-MKEXE13DKDLDLDLDL440T-MS2097GCACA440T-MSTUE220I
440T-MDALS11SFSF440T-MKEXE13DLDMDMDMDM440T-MS2097GDADA440T-MSTUE220J
440T-MDALS11SGSG440T-MKEXE13DRDSDSDSDS440T-MS2097GPUPU440T-MSTUE220K
440T-MDALS11WASA440T-MKEXE13DTDUDUDUDU440T-MS2097GRURU440T-MSTUE220L
440T-MDALS11ZWZX440T-MKEXE13DUEUEUEUEU440T-MS2097GTATA440T-MSTUE220M
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440T-MDALT10BABB440T-MKEXE13FBHBHBHBHB440T-MS3118ANV440T-MSTUE22PA
440T-MDALT10BACA440T-MKEXE13FCFDFDFDFD440T-MS3118APH440T-MSTUE22RA
440T-MDALT10BCBD440T-MKEXE13FCHCHCHCHC440T-MS3118APL440T-MSTUE22RR
440T-MDALT10BFCF440T-MKEXE13FDFEFEFEFE440T-MS3118APM440T-MSTUE22SA
440T-MDALT10BG0R440T-MKEXE13FDGDHDIDLD440T-MS3118APS440T-MSTUE22SJ
440T-MDALT10BGCG440T-MKEXE13FDHDHDHDHD440T-MS3118APT440T-MSTUE22TA
440T-MDALT10BHCH440T-MKEXE13FF0F0F0F0F440T-MS3118APW440T-MSTUE22UA
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440T-MDALT10BR0P440T-MKEXE13FFFGFHFIFJ440T-MS3118BATAS440T-MSTUE22WA
440T-MDALT10CACB440T-MKEXE13FGFHFHFHFH440T-MS3118BAWAV440T-MSTUE22XA
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440T-MDALT10CATO440T-MKEXE13FJFKFKFKFK440T-MS3118BBIBH440T-MSTUE22ZA
5. Product Advantages
  • Agri-Tailored Protection: IP67 + dustproof design blocks grain dust, cleaning water, and mild pesticides—perfect for wheat farms.

  • Dual Compliance: Meets EN ISO 14119 and ISO 23387, simplifying regulatory checks for grain facilities.

  • Wider Temperature Range: -35°C to 85°C adapts to extreme winter storage and hot drying processes, no performance drop.

  • Farm System Compatibility: Works with 24V DC agricultural PLCs/sensors, reducing integration costs.

  • Longer Service Life: 320,000 cycles handle frequent harvest/processing, lowering replacement expenses.

  • High-Visibility Indicator: LED light ensures status clarity in diverse farm environments (silos, fields).

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, silo control systems, and grain cleaning lines.
The Allen Bradley 440T-MDALS11LALB aligns with its core offerings: www.wheat-auto.com would integrate this SWITCH into high-risk wheat equipment—silo access doors (blocking grain dust), harvester engine guards (resisting outdoor elements), and grain conveyor safety gates (withstanding cleaning water). It leverages the SWITCH’s ISO 23387 compliance to help clients meet food safety standards for processed wheat, a key requirement for food industry buyers. Additionally, the business likely offers farm-specific after-sales support—such as dustproof maintenance and pesticide residue cleaning guides—addressing rural customers’ limited on-site technical resources. This ties to “smart agriculture” trends, using industrial-grade, agri-optimized switches to boost wheat production efficiency while mitigating farm-specific hazards.
7. Application Scenarios
The Allen Bradley 440T-MDALS11LALB SWITCH excels in wheat agricultural and grain-processing environments:
  • Wheat Silo Access Doors: IP67/dustproof blocks fine grain dust, ensuring safe loading/unloading.

  • Automated Wheat Harvesters: Mounted on engine guards, resists outdoor moisture/dust, unlocking only when the engine stops.

  • Grain Cleaning Lines: Withstands high-pressure cleaning water, keeping the SWITCH functional during wheat washing.

  • Wheat Pesticide Storage: Anti-corrosion housing tolerates mild residues, securing storage unit access.

  • Grain Drying Workshops: 85°C heat resistance adapts to high-temperature drying, maintaining safety control.

  • Winter Wheat Storage Silos: -35°C tolerance works for frozen storage, ensuring reliable interlock performance in cold winters.


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