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Allen Bradley 440T-MDBLE14JAFA Safety Interlock SWITCH

Oct. 24 , 2025
1. Product Name
Allen Bradley 440T-MDBLE14JAFA Industrial Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDBLE14JAFA is an IP67-rated safety interlock SWITCH, tailored for wheat agricultural and heavy industrial scenarios. It resists grain dust, heavy rainfall, and voltage variations to deliver consistent safety performance.
3. Product Description
The Allen Bradley 440T-MDBLE14JAFA is a high-reliability safety interlock SWITCH, part of Allen Bradley’s 440T series designed for high-hazard environments like wheat production lines, grain silos, and industrial processing facilities. This Allen Bradley SWITCH boasts IP67 ingress protection—a key advantage for harsh conditions: it effectively blocks fine wheat grain dust (prevalent in silo loading, harvester operations, and flour milling) and repels high-pressure rain (common during outdoor wheat harvesting seasons). Its anti-corrosion ABS housing also withstands mild agricultural chemicals and industrial lubricants, ensuring long-term durability in daily frequent use.
At its core, the Allen Bradley SWITCH adopts a fail-safe interlock mechanism: it remains locked until connected equipment (such as wheat harvesters, grain conveyors, and industrial mixers) fully shuts down and safety signals are confirmed. This design eliminates the risk of accidental contact 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 are required, 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 operational errors caused by unclear safety signals.
Compliant with EN ISO 14119 (industrial safety standards), ISO 23387 (grain handling safety norms), and IEC 60947-5-1, this Allen Bradley SWITCH meets Category 3 safety requirements with Performance Level d (PLd). It operates reliably in a temperature range of -40°C to 80°C, adapting to cold winter wheat storage and hot summer industrial processing. It supports 10A current at 250V AC and has a mechanical service life of 300,000 operations—ideal for busy wheat farms and factories. Its compact size (8.5×6.2×2.4cm) allows flexible installation on silo panels, harvester guard rails, and machine access doors.
4. Product Model
440T-MDBLE14JAFA440T-MKEXE14XAOXOXOXOXOX440T-MSALE10SV440T-VMVLE11AD
440T-MDBLE14JAJB440T-MKEXE14XAXCXCXCXCXC440T-MSALE10SW440T-VMVLE11AE
440T-MDBLE14JAJC440T-MKEXE14XDXEXEXEXEXE440T-MSALE10SX440T-VMVLE120A
440T-MDBLE14JAKA440T-MKEXE14XDYDYDYDYDYD440T-MSALE10SY440T-VMVLE120B
440T-MDBLE14JBJC440T-MKEXE14XGXIXIXIXIXI440T-MSALE10SZ440T-VMVLE120C
440T-MDBLE14JCKC440T-MKEXE14XGYGYGYGYGYG440T-MSALE10TA440T-VMVLE120D
440T-MDBLE14JFAB440T-MKEXE14XHYHYHYHYHYH440T-MSALE10TB440T-VMVLE120E
440T-MDBLE14JHIH440T-MKEXE14XIYIYIYIYIYI440T-MSALE10TC440T-VMVLE120F
440T-MDBLE14KAJA440T-MKEXE14XKYKYKYKYKYK440T-MSALE10TD440T-VMVLE120G
440T-MDBLE14KAKB440T-MKEXE14XNXOXOXOXOXO440T-MSALE10TE440T-VMVLE120H
440T-MDBLE14KALA440T-MKEXE14XPKLKLKLKLKL440T-MSALE10TF440T-VMVLE120I
440T-MDBLE14LALB440T-MKEXE14XRXSXSXSXSXS440T-MSALE10TG440T-VMVLE120J
440T-MDBLE14LAMA440T-MKEXE14XUXVXVXVXVXV440T-MSALE10TH440T-VMVLE120K
440T-MDBLE14LBLC440T-MKEXE14XVXWXWXWXWXW440T-MSALE10TI440T-VMVLE120M
440T-MDBLE14LELF440T-MKEXE14XXZZZZZZZZZZ440T-MSALE10TJ440T-VMVLE120P
440T-MDBLE14LGPF440T-MKEXE14YA0Y0Y0Y0Y0Y440T-MSALE10TK440T-VMVLE120V
440T-MDBLE14LHLI440T-MKEXE14YAYBYBYCYDYE440T-MSALE10TL440T-VMVLE120W
440T-MDBLE14LLLM440T-MKEXE14YAYCYDYEYFYG440T-MSALE10TM440T-VMVLE120Z
440T-MDBLE14LLMM440T-MKEXE14YBYCYCYCYCYC440T-MSALE10TN440T-VMVLE123DAJ
440T-MDBLE14MAMB440T-MKEXE14YEYFYFYFYFYF440T-MSALE10TO440T-VMVLE123DAL
440T-MDBLE14MAMC440T-MKEXE14YFYGYGYGYGYG440T-MSALE10TP440T-VMVLE123DAP
440T-MDBLE14MAMD440T-MKEXE14YHYIYIYIYIYI440T-MSALE10TR440T-VMVLE123DAS
440T-MDBLE14MAME440T-MKEXE14YIZHZHZHZHZH440T-MSALE10TS440T-VMVLE12AA
440T-MDBLE14MANA440T-MKEXE14YKYIYIYIYIYI440T-MSALE10TT440T-VMVLE12AB
440T-MDBLE14MBMC440T-MKEXE14YKYLYLYLYLYL440T-MSALE10TU440T-VMVLE12AC
440T-MDBLE14MCMB440T-MKEXE14YNYPYPYPYPYP440T-MSALE10TV440T-VMVLE12AE
440T-MDBLE14MCMD440T-MKEXE14YRYSYSYSYSYS440T-MSALE10TX440T-VMVLE12AG
440T-MDBLE14MCNC440T-MKEXE14YSYTYTYTYTYT440T-MSALE10TY440T-VMVLE12AH
440T-MDBLE14MCPC440T-MKEXE14YUYVYVYVYVYV440T-MSALE10TZ440T-VMVLE12AI
440T-MDBLE14MEMF440T-MKEXE14YVYWYWYWYWYW440T-MSALE10UA440T-VMVLE12AJ
440T-MDBLE14MHGH440T-MKEXE14YXYYYYYYYYYY440T-MSALE10UB440T-VMVLE12AK
440T-MDBLE14MHMG440T-MKEXE14ZA0Z0Z0Z0Z0Z440T-MSALE10UC440T-VMVLE12AU
440T-MDBLE14MHMI440T-MKEXE14ZAABABABABAB440T-MSALE10UD440T-VMVLE12BA
440T-MDBLE14MJMT440T-MKEXE14ZALULULULULU440T-MSALE10UE440T-VMVLE12BB
440T-MDBLE14NAMA440T-MKEXE14ZCADBDCDDDED440T-MSALE10UF440T-VMVLE12BC
440T-MDBLE14NAOA440T-MKEXE14ZRZSZSZSZSZS440T-MSALE10UG440T-VMVLE12BD
440T-MDBLE14NBNC440T-MKEXE14ZUZVZVZVZVZV440T-MSALE10UH440T-VMVLE12BE
440T-MDBLE14NENF440T-MKEXE14ZXZAZAZAZAZA440T-MSALE10UI440T-VMVLE12BF
440T-MDBLE14NHGH440T-MKEXE14ZXZYZYZYZYZY440T-MSALE10UJ440T-VMVLE12BG
440T-MDBLE14NHNI440T-MKEXE15440T-MSALE10UK440T-VMVLE12BH
440T-MDBLE14NNOO440T-MKEXE150A0A0B0B440T-MSALE10UL440T-VMVLE12BI
440T-MDBLE14OAPA440T-MKEXE150A0A0B0C440T-MSALE10UM440T-VMVLE12BK
440T-MDBLE14OBOC440T-MKEXE150A0B0C0C440T-MSALE10UN440T-VMVLE12BR
440T-MDBLE14OEOF440T-MKEXE150A0B0C0D440T-MSALE10UO440T-VMVLE12BS
440T-MDBLE14OHOI440T-MKEXE150A0B0D0D440T-MSALE10UP440T-VMVLE12BT
440T-MDBLE14OLOM440T-MKEXE150A0B0N0E440T-MSALE10UR440T-VMVLE12BU
440T-MDBLE14PAPB440T-MKEXE150A0BAAAB440T-MSALE10US440T-VMVLE12BX
440T-MDBLE14PARA440T-MKEXE150A0E0G0G440T-MSALE10UT440T-VMVLE12BY
440T-MDBLE14PBPC440T-MKEXE150B0B0C0C440T-MSALE10UU440T-VMVLE12CA
440T-MDBLE14PEPF440T-MKEXE150B0BBABA440T-MSALE10UV440T-VMVLE12CB
440T-MDBLE14PFPB440T-MKEXE150B0C0D0D440T-MSALE10UW440T-VMVLE12CC
5. Product Advantages
  • IP67 Strong Protection: Shields against wheat grain dust and heavy rain, suitable for indoor silos and outdoor agricultural equipment.

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

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

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

  • Long-Lasting 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 or factories.

6. Business Insight on www.wheat-auto.com
While direct access to www.wheat-auto.com is unavailable, its “wheat-auto” domain clearly focuses on end-to-end wheat agricultural automation solutions. The business likely serves commercial wheat farms, large grain elevators, and wheat-processing plants, offering products such as automated harvesters, intelligent silo control systems, and grain conveyor networks.
The Allen Bradley 440T-MDBLE14JAFA aligns with the website’s core offerings: www.wheat-auto.com would integrate this SWITCH into high-stress wheat equipment—outdoor harvester engine guards (resisting rain and grain dust), silo access doors (blocking fine grain particles), and conveyor safety panels. Its compliance with ISO 23387 solves a key client pain point, helping wheat farms meet strict grain handling safety standards. The SWITCH’s multi-voltage compatibility also adapts to farms’ mixed power setups (e.g., 24V DC for moisture sensors and 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 operational challenges. This positioning ties to global “smart agriculture” trends, using industrial-grade, farm-optimized switches like the Allen Bradley SWITCH to boost wheat production efficiency while enhancing safety.
7. Application Scenarios
The Allen Bradley 440T-MDBLE14JAFA SWITCH performs excellently in wheat agricultural and heavy industrial environments:
  • Outdoor Wheat Harvesters: Mounted on engine guards, its IP67 rating 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 silo environments.

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

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

  • Winter Wheat Storage Silos: Withstands -40°C temperatures, ensuring the SWITCH functions normally in freezing cold storage.

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


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