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Allen Bradley 440T-MDALJ10BAOA Safety Interlock SWITCH

Oct. 23 , 2025
1. Product Name
Allen Bradley 440T-MDALJ10BAOA Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDALJ10BAOA is a moisture-resistant safety interlock SWITCH, tailored for wheat agricultural and industrial environments. It controls access to hazardous zones, ensuring safety during grain storage, cleaning, and machinery operation.
3. Product Description
The Allen Bradley 440T-MDALJ10BAOA is a robust safety interlock SWITCH, part of Allen Bradley’s 440T series engineered to mitigate risks in moisture-prone wheat farms and industrial sites. This Allen Bradley SWITCH acts as a mandatory safety barrier: it restricts access to high-risk areas—such as wheat storage silos, grain cleaning machines, or industrial wet-process enclosures—only when equipment is fully shut down, grain moisture levels are stabilized, or safety conditions (e.g., pressure relief) are met, preventing injuries from moving parts or water-related hazards.
Constructed with moisture-sealed alloy housing and anti-rust coatings, the Allen Bradley SWITCH withstands dampness in wheat storage facilities (a key challenge for farm equipment) and industrial washdown areas. It operates reliably in a temperature range of -30°C to 75°C, adapting to cold grain silos and heated industrial workshops with high humidity. The Allen Bradley SWITCH supports seamless integration with wheat farm devices (e.g., grain moisture sensors, silo level controllers) and industrial PLCs via standard electrical terminals, eliminating the need for custom adapters and reducing installation time. Its mechanical interlock mechanism uses a fail-safe design: the lock remains engaged until connected equipment power is cut off, avoiding risks from accidental startups or power fluctuations common in rural agricultural settings. Additionally, a dual-color visual indicator (red for locked, green for unlocked) helps farm and factory workers quickly confirm safety status, boosting operational efficiency.
Compliant with EN ISO 14119 and ISO 23387 (grain handling safety standards), this Allen Bradley SWITCH meets Category 3 safety requirements (Performance Level d, PLd). It handles a maximum current of 8A at 250V AC, has a mechanical service life of 250,000 operations (suitable for high-frequency wheat harvest and storage cycles), and features compact dimensions (9.1×6.8×2.9cm)—fitting space-constrained setups like silo access panels or cleaning machine guards.
4. Product Model
440T-MDALJ10BAOA440T-MKEXE12JOKOKOKO440T-MRPSS113CCW440T-MSSSE27DJ
440T-MDALJ10BAOC440T-MKEXE12JPJRJRJR440T-MRPSS113CCY440T-MSSSE27LM
440T-MDALJ10BAPA440T-MKEXE12JRJSJSJS440T-MRPSS113CDA440T-MSSSE27LN
440T-MDALJ10BARA440T-MKEXE12JSJTJTJT440T-MRPSS113CDC440T-MSSSE27LT
440T-MDALJ10BASA440T-MKEXE12JTJUJUJU440T-MRPSS113CDE440T-MSSSE27LU
440T-MDALJ10BATA440T-MKEXE12JUJVJVJV440T-MRPSS113CDG440T-MSSSE27LV
440T-MDALJ10BAUA440T-MKEXE12JWJXJXJX440T-MRPSS113CDI440T-MSSSE27LW
440T-MDALJ10BAVA440T-MKEXE12JXJYJYJY440T-MRPSS113CDJ440T-MSSSE27MA
440T-MDALJ10BAWA440T-MKEXE12JYJZJZJZ440T-MRPSS113CDK440T-MSSSE27XB
440T-MDALJ10BBBC440T-MKEXE12KAKBKBKB440T-MRPSS113CDM440T-MSSSS10AA
440T-MDALJ10BBBD440T-MKEXE12KAKBKCKD440T-MRPSS113CDZ440T-MSSSS10BZ
440T-MDALJ10BBBE440T-MKEXE12KALALALA440T-MRPSS113CEB440T-MSSSS10NB
440T-MDALJ10BBBF440T-MKEXE12KBKCKCKC440T-MRPSS113CED440T-MSSSS10NC
440T-MDALJ10BBBH440T-MKEXE12KCKDKDKD440T-MRPSS113CEE440T-MSSSS10NE
440T-MDALJ10BBBI440T-MKEXE12KDLDMDND440T-MRPSS113CEG440T-MSSSS10NF
440T-MDALJ10BBBU440T-MKEXE12KEKFKFKF440T-MRPSS113CEJ440T-MSSSS10NH
440T-MDALJ10BBCB440T-MKEXE12KFLFLFLF440T-MRPSS113CEL440T-MSSSS10NI
440T-MDALJ10BBCC440T-MKEXE12KGKHKHKH440T-MRPSS113CEO440T-MSSSS10NK
440T-MDALJ10BBDB440T-MKEXE12KGLGLGLG440T-MRPSS113CET440T-MSSSS10NL
440T-MDALJ10BBEB440T-MKEXE12KJKKKKKK440T-MRPSS113CEV440T-MSSSS10NN
440T-MDALJ10BBFB440T-MKEXE12KKKLKLKL440T-MRPSS113CEW440T-MSSSS10NO
440T-MDALJ10BBGB440T-MKEXE12KKKNKNKN440T-MRPSS113CEY440T-MSSSS10NR
440T-MDALJ10BBGC440T-MKEXE12KLKMKMKM440T-MRPSS113CFA440T-MSSSS10NT
440T-MDALJ10BCBD440T-MKEXE12KMKNKNKN440T-MRPSS113CFB440T-MSSSS10NU
440T-MDALJ10BCBG440T-MKEXE12KMLMLMLM440T-MRPSS113CFC440T-MSSSS10NV
440T-MDALJ10BCCC440T-MKEXE12KOKNKNKN440T-MRPSS113CFD440T-MSSSS11AA
440T-MDALJ10BCDC440T-MKEXE12KOKPKPKP440T-MRPSS113CFF440T-MSSSS11BB
440T-MDALJ10BDBE440T-MKEXE12KPKRKRKR440T-MRPSS113CFG440T-MSSSS120A
440T-MDALJ10BDBH440T-MKEXE12KRKSKSKS440T-MRPSS113CFI440T-MSSSS120B
440T-MDALJ10BDCD440T-MKEXE12KTKUKUKU440T-MRPSS113CFK440T-MSSSS20AA
440T-MDALJ10BDDD440T-MKEXE12KVKWKWKW440T-MRPSS113CFN440T-MSSSS20AU
440T-MDALJ10BDED440T-MKEXE12KWKXKXKX440T-MRPSS113CFP440T-MSSSS20BZ
440T-MDALJ10BDFD440T-MKEXE12KXKYKYKY440T-MRPSS113CFY440T-MSSSS20VN
440T-MDALJ10BEBF440T-MKEXE12KZLDLDLD440T-MRPSS113DAA440T-MSSSS220B
440T-MDALJ10BEBI440T-MKEXE12KZLXLXLX440T-MRPSS113DAN440T-MSSSS22BB
440T-MDALJ10BEBM440T-MKEXE12LALBLBLB440T-MRPSS113DAO440T-MSSSS22EN
440T-MDALJ10BECE440T-MKEXE12LAMAMAMA440T-MRPSS113DBA440T-MSSSS22EP
440T-MDALJ10BEDE440T-MKEXE12LBLCLCLC440T-MRPSS113DBX440T-MSSSS22JB
440T-MDALJ10BEEE440T-MKEXE12LBMBMBMB440T-MRPSS113DBZ440T-MSSSS23AA
440T-MDALJ10BEFE440T-MKEXE12LCLDLDLD440T-MRPSS113DCB440T-MSSSS23AB
440T-MDALJ10BEGE440T-MKEXE12LCMCMCMC440T-MRPSS113DCD440T-MSSSS23AC
440T-MDALJ10BEHE440T-MKEXE12LDLELELE440T-MRPSS113DCH440T-MSSSS260A
440T-MDALJ10BEIE440T-MKEXE12LELFLFLF440T-MRPSS113DCI440T-MSSSS26AA
440T-MDALJ10BFBG440T-MKEXE12LFLGLGLG440T-MRPSS113DCM440T-MSSSS26BC
440T-MDALJ10BFBJ440T-MKEXE12LFLULULU440T-MRPSS113DCS440T-MSSSS26DE
440T-MDALJ10BFCF440T-MKEXE12LGLHLHLH440T-MRPSS113DCU440T-MSSSS26FG
440T-MDALJ10BFDF440T-MKEXE12LHLILILI440T-MRPSS113DCW440T-MSSSS270B
440T-MDALJ10BFEF440T-MKEXE12LILJLJLJ440T-MRPSS113DCX440T-MSSSS27AA
440T-MDALJ10BFFF440T-MKEXE12LJLKLKLK440T-MRPSS113DCZ440T-MSSSS27AB
440T-MDALJ10BFGF440T-MKEXE12LKLLLLLL440T-MRPSS113DDB440T-MSSSS27AC
440T-MDALJ10BGBH440T-MKEXE12LLLMLMLM440T-MRPSS113DDD440T-MSSSS27AD
440T-MDALJ10BGCG440T-MKEXE12LMLNLNLN440T-MRPSS113DDG440T-MSSSS27AE
440T-MDALJ10BGDG440T-MKEXE12LNLOLOLO440T-MRPSS113DDJ440T-MSSSS27AF
440T-MDALJ10BGEG440T-MKEXE12LNLPLPLP440T-MRPSS113DDK440T-MSSSS27AG
440T-MDALJ10BGFG440T-MKEXE12LOLPLPLP440T-MRPSS113DDL440T-MSSSS27AH
440T-MDALJ10BGGG440T-MKEXE12LRLSLSLS440T-MRPSS113DDN440T-MSSSS27AI
440T-MDALJ10BGHG440T-MKEXE12LRURURUR440T-MRPSS113DDP440T-MSSSS27AJ
440T-MDALJ10BHBE440T-MKEXE12LSLTLTLT440T-MRPSS113DDR440T-MSSSS27AK
440T-MDALJ10BHBI440T-MKEXE12LULRLSLT440T-MRPSS113DDS440T-MSSSS27BC
440T-MDALJ10BHBL440T-MKEXE12LULVLVLV440T-MRPSS113DDT440T-MSSSS27CC
440T-MDALJ10BHCH440T-MKEXE12LVLWLWLW440T-MRPSS113EAA440T-MSSSS27CL
440T-MDALJ10BHDH440T-MKEXE12LXLYLYLY440T-MRPSS11AA440T-MSSSS27OB
440T-MDALJ10BHEH440T-MKEXE12MA0M0M0M440T-MRPSS11AB440T-MSSUE20
440T-MDALJ10BHFH440T-MKEXE12MAAAABAC440T-MRPSS11AC440T-MSSUE200A
440T-MDALJ10BHGH440T-MKEXE12MAMBMBMB440T-MRPSS11AD440T-MSSUE200B
440T-MDALJ10BHHH440T-MKEXE12MAMBMCMD440T-MRPSS11AE440T-MSSUE200C
440T-MDALJ10BHIH440T-MKEXE12MAMKMKMK440T-MRPSS11AF440T-MSSUE200D
5. Product Advantages

  • Moisture Resistance: Sealed housing and anti-rust coatings withstand dampness in wheat silos and industrial washdown areas, preventing corrosion.

  • Broad Temperature Range: -30°C~75°C adaptability works for cold grain storage and heated humid workshops, no performance loss.

  • Rigorous Safety Compliance: Meets EN ISO 14119 and ISO 23387, ensuring adherence to wheat farm and industrial safety regulations.

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

  • Fail-Safe Locking: Remains engaged until equipment power is off, avoiding accidents from accidental startups in rural areas.

  • Low Maintenance: Sealed mechanism and anti-corrosion design reduce upkeep, lowering long-term expenses for farms and factories.

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. The business serves commercial wheat farms, grain elevators, and food processors, offering solutions like automated grain storage systems, wheat cleaning machines, and post-harvest moisture control equipment—all requiring moisture-resistant safety components.
The Allen Bradley 440T-MDALJ10BAOA aligns with the business’s core needs: its moisture resistance solves dampness issues in wheat silos, and -30°C tolerance works for cold-region storage. www.wheat-auto.com would integrate this Allen Bradley SWITCH into key wheat equipment: silo access doors (preventing moisture-related corrosion), wheat cleaning machine guards (withstanding washdowns), and grain conveyor safety panels (adapting to rural power fluctuations). It leverages the SWITCH’s ISO 23387 compliance to help clients meet food safety certifications for processed wheat products. Additionally, the business likely provides farm-specific after-sales support—such as moisture damage inspections and terminal maintenance—to keep equipment running during peak harvest, a critical service for rural customers. This partnership uses industrial-grade moisture-resistant switches to boost wheat storage efficiency while ensuring worker safety.
7. Application Scenarios
The Allen Bradley 440T-MDALJ10BAOA SWITCH excels in moisture-prone wheat agricultural and industrial environments:

  • Wheat Silo Storage Doors: Mounted on silo access panels—moisture resistance prevents corrosion from grain dampness, fail-safe lock stops access until silos are empty.

  • Wheat Cleaning Machines: Integrated into cleaner enclosures—withstands washdowns during equipment sanitizing, anti-rust coating resists cleaning chemicals.

  • Industrial Wet-Process Workshops: Used on machinery guards in humid factories—moisture-sealed housing maintains performance in high-humidity conditions.

  • Cold Grain Storage Facilities: Installed on refrigerated silo doors—-30°C tolerance ensures safety control in frozen wheat storage, no freezing issues.

  • Agricultural Irrigation Control Panels: Applied to pump enclosures—moisture resistance handles outdoor irrigation system dampness, fail-safe lock prevents access during operation.

  • Grain Screening Machines: Mounted on screen guards—anti-rust coating resists grain dust and moisture, visual indicator helps workers confirm safety status.



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