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Allen Bradley 440T-MDBLE140S0R Safety Interlock SWITCH

Oct. 24 , 2025
1. Product Name
Allen Bradley 440T-MDBLE140S0R Industrial Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDBLE140S0R is an IP67-rated safety interlock SWITCH, optimized for wheat agricultural and heavy industrial environments. It resists grain dust, rain, and voltage variations to ensure stable safety protection.
3. Product Description
The Allen Bradley 440T-MDBLE140S0R is a high-reliability safety interlock SWITCH, part of Allen Bradley’s 440T series designed for high-hazard settings like wheat production lines and industrial processing plants. This Allen Bradley SWITCH features IP67 ingress protection—critical for harsh conditions: it effectively blocks fine wheat grain dust (common in silos, harvesters, and flour mills) and repels high-pressure rain (typical during outdoor wheat harvests). Its anti-corrosion ABS housing also withstands mild agricultural chemicals and industrial lubricants, prolonging service life in high-frequency use.
At its core, the Allen Bradley SWITCH uses a fail-safe interlock mechanism: it remains locked until connected equipment (e.g., wheat harvesters, grain conveyors, industrial mixers) fully shuts down and safety signals are confirmed. This eliminates accidental contact risks during peak wheat harvesting or high-volume industrial operations. The SWITCH supports multi-voltage compatibility (24V DC/110V AC/230V AC), enabling seamless integration with both agricultural PLC systems (for wheat farm automation) and industrial control panels—no custom adapters needed, reducing on-site installation time and labor costs. A high-visibility dual-color LED indicator (red = locked, green = unlocked) ensures clear status recognition in dim silos, bright outdoor wheat fields, or noisy workshops, minimizing errors from unclear safety signals.
Compliant with EN ISO 14119 (industrial safety), ISO 23387 (grain handling safety), and IEC 60947-5-1, this Allen Bradley SWITCH meets Category 3 safety requirements with Performance Level d (PLd). It operates reliably in -40°C to 80°C, adapting to cold winter wheat storage and hot summer industrial lines. It supports 10A current at 250V AC and has a 300,000-operation mechanical life—ideal for busy wheat farms and factories. Its compact size (8.6×6.3×2.5cm) allows flexible installation on silo panels, harvester guard rails, and machine doors.
4. Product Model
440T-MDBLE140S0R440T-MKEXE14EVEWEWEWEWEW440T-MSALE10FO440T-MTALJ11EBEIEI
440T-MDBLE140S0T440T-MKEXE14EXEYEYEYEYEY440T-MSALE10FP440T-MTALJ11ENEOEO
440T-MDBLE140S0X440T-MKEXE14EYEZEZEZEZEZ440T-MSALE10FR440T-MTALJ11EPIZIZ
440T-MDBLE140T0U440T-MKEXE14FAFBFBFBFBFB440T-MSALE10FS440T-MTALJ11ERESES
440T-MDBLE140TOU440T-MKEXE14FAFGFGFGFGFG440T-MSALE10FT440T-MTALJ11ERETET
440T-MDBLE140U0T440T-MKEXE14FBFCFCFCFCFC440T-MSALE10FU440T-MTALJ11ESETET
440T-MDBLE140U0V440T-MKEXE14FCDFDFDFDFDF440T-MSALE10FV440T-MTALJ11FBFCFC
440T-MDBLE140V0W440T-MKEXE14FCFDFDFDFDFD440T-MSALE10FW440T-MTALJ11FBFDFD
440T-MDBLE140W0R440T-MKEXE14FEFFFFFFFFFF440T-MSALE10FX440T-MTALJ11FBFEFE
440T-MDBLE140W0X440T-MKEXE14FF0S0S0S0S0S440T-MSALE10FY440T-MTALJ11FIFJFJ
440T-MDBLE140WOR440T-MKEXE14FFFGFGFGFGFG440T-MSALE10FZ440T-MTALJ11FIFKFK
440T-MDBLE140X0N440T-MKEXE14FGFHFHFHFHFH440T-MSALE10GA440T-MTALJ11FOFPFP
440T-MDBLE140X0P440T-MKEXE14FHFIFIFIFIFI440T-MSALE10GB440T-MTALJ11FVFWFW
440T-MDBLE140X0Y440T-MKEXE14FJFKFKFKFKFK440T-MSALE10GC440T-MTALJ11GAHAHA
440T-MDBLE140Y0Z440T-MKEXE14FKFLFLFLFLFL440T-MSALE10GD440T-MTALJ11IAJAJA
440T-MDBLE140ZAA440T-MKEXE14FLFKFKFKFKFK440T-MSALE10GE440T-MTALJ11IBIEIE
440T-MDBLE14AA3AAA440T-MKEXE14FLFMFMFMFMFM440T-MSALE10GF440T-MTALJ11IDIFIF
440T-MDBLE14AAAB440T-MKEXE14FMFNFNFNFNFN440T-MSALE10GG440T-MTALJ11IFIHIH
440T-MDBLE14AAAC440T-MKEXE14FMFPFPFPFPFP440T-MSALE10GH440T-MTALJ11IGIIII
440T-MDBLE14AAAE440T-MKEXE14FOFPFPFPFPFP440T-MSALE10GI440T-MTALJ11IHIMIM
440T-MDBLE14AAAG440T-MKEXE14FPFSFSFSFSFS440T-MSALE10GJ440T-MTALJ11IIIJIJ
440T-MDBLE14AABA440T-MKEXE14FRFSFSFSFSFS440T-MSALE10GK440T-MTALJ11IJITIT
440T-MDBLE14AABB440T-MKEXE14FSFTFTFTFTFT440T-MSALE10GL440T-MTALJ11IKININ
440T-MDBLE14AACA440T-MKEXE14FUFVFVFVFVFV440T-MSALE10GM440T-MTALJ11IOAPAP
440T-MDBLE14AAEA440T-MKEXE14FVFPFRFSFTFU440T-MSALE10GN440T-MTALJ11IUIVIV
440T-MDBLE14ABAA440T-MKEXE14FVFWFWFWFWFW440T-MSALE10GO440T-MTALJ11IVIWIW
440T-MDBLE14ABAC440T-MKEXE14FXFYFYFYFYFY440T-MSALE10GP440T-MTALJ11IWIXIX
440T-MDBLE14ABAD440T-MKEXE14GAGBGBGBGBGB440T-MSALE10GR440T-MTALJ11IYIPIP
440T-MDBLE14ABAE440T-MKEXE14GAGMGMGMGMGM440T-MSALE10GS440T-MTALJ11KALALA
440T-MDBLE14ABAF440T-MKEXE14GAHAHAHAHAHA440T-MSALE10GT440T-MTALJ11MAMBMB
440T-MDBLE14ABAG440T-MKEXE14GBGCGCGCGCGC440T-MSALE10GU440T-MTALJ11MCMDMD
440T-MDBLE14ABAH440T-MKEXE14GBHBHBHBHBHB440T-MSALE10GV440T-MTALJ11MEMFMF
440T-MDBLE14ABAI440T-MKEXE14GDGEGEGEGEGE440T-MSALE10GW440T-MTALJ11OAOBOB
440T-MDBLE14ABAJ440T-MKEXE14GEHEHEHEHEHE440T-MSALE10GX440T-MTALJ11OAPAPA
440T-MDBLE14ABBB440T-MKEXE14GFGGGGGGGGGG440T-MSALE10GY440T-MTALJ11OCODOD
440T-MDBLE14ABBC440T-MKEXE14GGAGAGAGAGAG440T-MSALE10GZ440T-MTALJ11RARBRB
440T-MDBLE14ABBD440T-MKEXE14GHGIGIGIGIGI440T-MSALE10HA440T-MTALJ11RASASA
440T-MDBLE14ABBE440T-MKEXE14GHHHHHHHHHHH440T-MSALE10HB440T-MTALJ11SASBSB
440T-MDBLE14ABBF440T-MKEXE14GIGJGJGJGJGJ440T-MSALE10HC440T-MTALJ11SSSTST
440T-MDBLE14ABBG440T-MKEXE14GIHIHIHIHIHI440T-MSALE10HD440T-MTALJ11TAUAUA
440T-MDBLE14ABCB440T-MKEXE14GJHJHJHIHIHI440T-MSALE10HE440T-MTALJ11VAWAWA
440T-MDBLE14ACAB440T-MKEXE14GKGLGLGLGLGL440T-MSALE10HF440T-MTALJ11X083
440T-MDBLE14ACAD440T-MKEXE14GLGMGMGMGMGM440T-MSALE10HG440T-MTALJ11X084
440T-MDBLE14ACAE440T-MKEXE14GNGOGOGOGOGO440T-MSALE10HH440T-MTALJ11X085
440T-MDBLE14ACAF440T-MKEXE14GOGPGPGPGPGP440T-MSALE10HI440T-MTALJ11X086
440T-MDBLE14ACAG440T-MKEXE14GPGRGRGRGRGR440T-MSALE10HJ440T-MTALJ11X087
440T-MDBLE14ACAH440T-MKEXE14GPGSGSGSGSGS440T-MSALE10HK440T-MTALJ11X088
440T-MDBLE14ACAI440T-MKEXE14GTGUGUGUGUGU440T-MSALE10HL440T-MTALS11ABADAD
440T-MDBLE14ACAL440T-MKEXE14GVGWGWGWGWGW440T-MSALE10HM440T-MTALS11ABAEAE
440T-MDBLE14ACBC440T-MKEXE14GWGXGXGXGXGX440T-MSALE10HN440T-MTALS11ABAFAF
440T-MDBLE14ACCC440T-MKEXE14GXGYGYGYGYGY440T-MSALE10HO440T-MTALS11ABAGAG
440T-MDBLE14ADAC440T-MKEXE14GZHAHAHAHAHA440T-MSALE10HP440T-MTALS11ABAHAH
440T-MDBLE14ADAE440T-MKEXE14HAAAAAAAAAAA440T-MSALE10HR440T-MTALS11ABAIAI
440T-MDBLE14ADAF440T-MKEXE14HAHBHBHBHBHB440T-MSALE10HS440T-MTALS11AC3ACA3ACA
440T-MDBLE14ADAG440T-MKEXE14HAHBHCHDHEHF440T-MSALE10HU440T-MTALS11ACAJAJ
440T-MDBLE14ADAH440T-MKEXE14HBABABABABAB440T-MSALE10HV440T-MTALS11ECEDEH
440T-MDBLE14ADAI440T-MKEXE14HBEEEEEEEEEE440T-MSALE10HX440T-MTALS11EEEFEG
440T-MDBLE14ADAJ440T-MKEXE14HBHCHCHCHCHC440T-MSALE10HZ440T-MTALS11MBMCMD
440T-MDBLE14ADAK440T-MKEXE14HCACACACACAC440T-MSALE10IA440T-MTBLE10
440T-MDBLE14ADAL440T-MKEXE14HCHDHDHDHDHD440T-MSALE10IB440T-MTBLE100A0A0A
440T-MDBLE14AEAB440T-MKEXE14HDHEHEHEHEHE440T-MSALE10IC440T-MTBLE100A0B0C
440T-MDBLE14AEAF440T-MKEXE14HFHGHGHGHGHG440T-MSALE10ID440T-MTBLE100D0E0F
440T-MDBLE14AEAG440T-MKEXE14HGHHHHHHHHHH440T-MSALE10IE440T-MTBLE11
440T-MDBLE14AEAH440T-MKEXE14HGIGIGIGIGIG440T-MSALE10IF440T-MTBLE110A0B0C
440T-MDBLE14AEAI440T-MKEXE14HHHIHIHIHIHI440T-MSALE10IG440T-MTBLE11AAAAAA
5. Product Advantages
  • IP67 Robust Protection: Shields against wheat grain dust and heavy rain, fitting indoor silos and outdoor agricultural equipment.

  • Wide Temperature Range: -40°C to 80°C works for winter wheat storage and summer industrial processing without performance loss.

  • Dual Standard Compliance: Meets EN ISO 14119 (industrial) and ISO 23387 (grain handling), simplifying regulatory checks for wheat operations.

  • Multi-Voltage Flexibility: Compatible with 24V DC (agricultural sensors) and 230V AC (industrial machinery), cutting integration costs.

  • Long Durability: 300,000 mechanical cycles reduce replacement frequency, lowering long-term operational expenses.

  • Clear Status Indication: Dual-color LED ensures visibility in all environments, avoiding human error in busy wheat farms/factories.

6. Business Insight on www.wheat-auto.com
While direct access to www.wheat-auto.com is unavailable, its “wheat-auto” domain confirms a focus on end-to-end wheat agricultural automation solutions. It likely serves commercial wheat farms, large grain elevators, and wheat-processing plants, offering products like automated harvesters, intelligent silo controls, and grain conveyor networks.
The Allen Bradley 440T-MDBLE140S0R aligns with its core offerings: www.wheat-auto.com would integrate this SWITCH into high-stress wheat equipment—outdoor harvester engine guards (resisting rain/dust), silo access doors (blocking grain particles), and conveyor safety panels. Its ISO 23387 compliance solves a key client pain point, helping meet strict grain handling safety standards. The SWITCH’s multi-voltage compatibility adapts to farms’ mixed power setups (24V DC for moisture sensors, 230V AC for conveyors). Additionally, the business may provide farm-specific after-sales support (e.g., dust-cleaning guides, voltage configuration tips) to address rural challenges. This ties to “smart agriculture” trends, using industrial-grade, farm-optimized switches like the Allen Bradley SWITCH to boost wheat efficiency and safety.
7. Application Scenarios
The Allen Bradley 440T-MDBLE140S0R SWITCH excels in wheat agricultural and heavy industrial environments:
  • Outdoor Wheat Harvesters: Mounted on engine guards, IP67 resists rain and grain dust, unlocking only when the engine stops to protect workers during harvest.

  • Wheat Grain Silos: Blocks fine dust from stored wheat, ensuring safe access during high-volume loading/unloading in dim silos.

  • Wheat Flour Mills: Used on mixer guards, preventing access until the machine halts, complying with food processing safety standards.

  • Summer Wheat Drying Facilities: 80°C tolerance maintains safety control in heat-based wheat drying processes.

  • Winter Wheat Storage Silos: -40°C resilience works for cold-climate storage, ensuring the SWITCH functions in freezing conditions.

  • Grain Conveyors (Wheat Farms): Multi-voltage compatibility fits 24V DC sensors and 230V AC conveyors, securing access during grain transport.


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