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Allen Bradley 440T-MDBLE100L0K Industrial Safety Interlock SWITCH

Oct. 24 , 2025
1. Product Name
Allen Bradley 440T-MDBLE100L0K Industrial-Grade Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDBLE100L0K is an IP67-rated industrial safety interlock SWITCH, optimized for both wheat agricultural operations and heavy industries—withstanding grain dust, rain, and temperature variations.
3. Product Description
The Allen Bradley 440T-MDBLE100L0K is a robust safety interlock SWITCH, part of Allen Bradley’s 440T series designed for high-risk operational environments, including wheat production and industrial processing. This Allen Bradley SWITCH boasts IP67 protection, a key feature for harsh settings: it blocks fine wheat grain dust (prevalent in silos and harvesters) and repels heavy rain (common in outdoor harvests), while its corrosion-resistant housing stands up to mild agricultural chemicals and industrial solvents.
At its core, the Allen Bradley SWITCH adopts a fail-safe interlock mechanism: it stays locked until connected equipment—such as wheat harvesters, grain conveyors, or industrial mixers—completely shuts down. This eliminates accidental contact risks during peak harvest seasons or busy industrial shifts. The Allen Bradley SWITCH integrates smoothly with both agricultural and industrial automation systems, compatible with 24V DC PLCs, grain moisture sensors, and industrial emergency stop circuits, requiring no custom adapters to cut on-site installation time. A high-visibility LED status light (red = locked, green = unlocked) ensures clear recognition in dim silos, bright outdoor fields, or industrial workshops, helping workers confirm safety at a glance.
Compliant with EN ISO 14119 (industrial safety) and ISO 23387 (grain handling standards), this Allen Bradley SWITCH meets Category 3 safety requirements with Performance Level d (PLd). It operates reliably in temperatures from -30°C to 80°C (adapting to winter wheat storage and summer industrial processing), supports 10A current at 250V AC, and has a mechanical service life of 280,000 operations—ideal for frequent, long-term use. Its compact dimensions (8.5×6.2×2.4cm) allow flexible installation on tight spots like silo access panels, harvester guard rails, and industrial machine control doors.
4. Product Model
440T-MDBLE100L0K440T-MKEXE140C0B0A0A0A0A440T-MS3418D440T-MTALE11AKALAL
440T-MDBLE100L0L440T-MKEXE140C0D0D0D0D0D440T-MS3418D0A0A0A0A440T-MTALE11AMANAN
440T-MDBLE100M0M440T-MKEXE140C0D0E0F0G0H440T-MS3418D0A0B0C0D440T-MTALE11AMANAO
440T-MDBLE100M0N440T-MKEXE140C0E0E0E0E0E440T-MS3418D0C0C0C0C440T-MTALE11APARAR
440T-MDBLE100N0N440T-MKEXE140C0F0F0F0F0F440T-MS3418D0D0D0D0D440T-MTALE11APASAS
440T-MDBLE100N0O440T-MKEXE140C0G0G0G0G0G440T-MS3418D0E0E0E0E440T-MTALE11ARASAS
440T-MDBLE100O0N440T-MKEXE140C0O0O0O0O0O440T-MS3418D0EAEAEAE440T-MTALE11ARATAT
440T-MDBLE100O0O440T-MKEXE140CCACACACACA440T-MS3418D0F0F0F0F440T-MTALE11ASATAT
440T-MDBLE100O0P440T-MKEXE140CCACACBCBCC440T-MS3418D0G0G0G0G440T-MTALE11ATAYAY
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440T-MDBLE100R0P440T-MKEXE140D0B0B0B0B0B440T-MS3418D0NBEBEBE440T-MTALE11AZBABA
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440T-MDBLE10ABAD440T-MKEXE140F0G0G0G0G0G440T-MS3418GBCBCBCBC440T-MTALE11BEBHBH
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440T-MDBLE10ABBB440T-MKEXE140FFFFFFFFFFF440T-MS3418GRARARARA440T-MTALE11BIBJBJ
440T-MDBLE10ACAD440T-MKEXE140FGAGAGAGAGA440T-MS3418J440T-MTALE11BIBKBK
440T-MDBLE10ACBC440T-MKEXE140G0F0F0F0F0F440T-MS3418JAAAAAAAA440T-MTALE11BIBLBL
440T-MDBLE10ADBD440T-MKEXE140G0H0H0H0H0H440T-MS3418JPJPJPJPJ440T-MTALE11BJBKBK
440T-MDBLE10AEAF440T-MKEXE140G0H0H0H0I0J440T-MS3418JPMPMPMPM440T-MTALE11BJMKMK
440T-MDBLE10AEBE440T-MKEXE140G0H0I0J0K0L440T-MS3418JRJRJRJRJ440T-MTALE11BKKLKL
440T-MDBLE10AGAH440T-MKEXE140GGAGAGAGAGA440T-MS3418JRMRMRMRM440T-MTALE11BLBKBK
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440T-MDBLE10APAR440T-MKEXE140H0POPOPOPOP440T-MS3426AAC440T-MTALE11BPBSBS
440T-MDBLE10ASAT440T-MKEXE140HHAHAHAHAHA440T-MS3426AAD440T-MTALE11BRBSBS
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440T-MDBLE10BABA440T-MKEXE140J0K0K0K0K0K440T-MS3426AAI440T-MTALE11BWBXBX
440T-MDBLE10BABB440T-MKEXE140JJAJAJAJAJA440T-MS3426AAS440T-MTALE11CACBCB
440T-MDBLE10BBCA440T-MKEXE140JJJJJJJJJJJ440T-MS3426AAT440T-MTALE11CACBCC
440T-MDBLE10BBCB440T-MKEXE140K0L0L0L0L0L440T-MS3426AAW440T-MTALE11CACCCC
5. Product Advantages
  • IP67 Dual-Use Protection: Blocks grain dust and heavy rain, suitable for both wheat farms and heavy industries.

  • Broad Temperature Range: -30°C to 80°C adaptability works for winter storage and summer processing without performance issues.

  • Dual Standard Compliance: Meets EN ISO 14119 and ISO 23387, simplifying regulatory checks for farms and factories.

  • Seamless Integration: Compatible with agricultural PLCs and industrial control systems, reducing setup costs and time.

  • Long-Durable Design: 280,000 mechanical cycles handle frequent use, lowering replacement frequency and costs.

  • Clear Status Indication: LED light ensures safety status is visible in all lighting and weather conditions.

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 handling equipment.
The Allen Bradley 440T-MDBLE100L0K aligns perfectly with its core offerings: www.wheat-auto.com would integrate this SWITCH into high-use, harsh-condition wheat equipment—outdoor harvester guards (resisting rain/dust), silo access doors (blocking grain particles), and grain conveyor safety panels. It leverages the SWITCH’s ISO 23387 compliance to help clients meet food safety standards for processed wheat, a critical requirement for selling to food manufacturers. Additionally, the business likely offers farm-specific after-sales support—such as dust-cleaning guides and rainproof maintenance tips—addressing rural customers’ limited on-site technical resources. This ties to “smart agriculture” trends, using industrial-grade, farm-optimized switches to boost wheat production efficiency while mitigating common farm hazards.
7. Application Scenarios
The Allen Bradley 440T-MDBLE100L0K SWITCH performs well in wheat agricultural and heavy industrial environments:
  • Outdoor Wheat Harvesters: Mounted on engine guards, IP67 resists rain and dust, unlocking only when the engine stops.

  • Grain Silos: Blocks fine wheat dust buildup, ensuring safe access during high-volume grain loading and unloading.

  • Industrial Mixers: Used on mixer guard doors, preventing access until the machine fully stops in factory settings.

  • Summer Grain Drying Facilities: 80°C resistance maintains safety control in intense wheat drying processes.

  • Winter Wheat Storage Silos: -30°C tolerance works for cold storage, ensuring reliable interlock performance in freezing conditions.

  • Mining Conveyors: Applied to outdoor conveyor guards, IP67 repels rain and dust, securing access in mining operations.



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