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Allen Bradley 440T-MDBLE13ZAZA Safety Interlock SWITCH

Oct. 24 , 2025
1. Product Name
Allen Bradley 440T-MDBLE13ZAZA Industrial Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-MDBLE13ZAZA is an IP67-rated safety interlock SWITCH, optimized for wheat agricultural and heavy industrial environments, withstanding grain dust, heavy rain, and voltage fluctuations for consistent safety protection.
3. Product Description
The Allen Bradley 440T-MDBLE13ZAZA 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 facilities. This Allen Bradley SWITCH features IP67 ingress protection— a critical advantage for harsh conditions: it effectively blocks fine wheat grain dust (common in silos, harvesters, and flour mills) and repels high-pressure rain (typical of outdoor wheat harvest seasons), while its anti-corrosion ABS housing resists mild agricultural chemicals and industrial lubricants, extending service life in frequent-use scenarios.
At its core, the Allen Bradley SWITCH adopts a fail-safe interlock mechanism: it remains securely locked until connected equipment (e.g., wheat harvesters, grain conveyors, industrial mixers) fully shuts down and safety signals are confirmed, eliminating accidental contact risks during peak wheat harvesting or high-volume industrial operations. It also offers multi-voltage compatibility (24V DC/110V AC/230V AC), allowing seamless integration with both agricultural PLC systems (used for wheat farm automation) and industrial control panels—no custom adapters needed, which significantly reduces 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 industrial workshops, minimizing operational errors caused by unclear safety signals.
Compliant with EN ISO 14119 (industrial safety standards), ISO 23387 (grain handling safety requirements), and IEC 60947-5-1, this Allen Bradley SWITCH meets Category 3 safety requirements with Performance Level d (PLd). It operates reliably in a wide temperature range from -40°C to 80°C, adapting to cold winter wheat storage facilities and hot summer industrial processing lines. The SWITCH supports a maximum current of 10A at 250V AC and has a mechanical service life of 300,000 operations—ideal for high-frequency use in busy wheat farms and factories. Its compact dimensions (8.5×6.2×2.4cm) enable flexible installation on silo access panels, harvester guard rails, and machine control doors.
4. Product Model
440T-MDBLE13ZAZA440T-MKEXE14BRBSBSBSBSBS440T-MSALE10AT440T-MTALE11SASBSB
440T-MDBLE14440T-MKEXE14BSBTBTBTBTBT440T-MSALE10AU440T-MTALE11SASBSC
440T-MDBLE140A0B440T-MKEXE14BTBUBUBUBUBU440T-MSALE10AV440T-MTALE11SATATA
440T-MDBLE140A0C440T-MKEXE14BUBVBVBVBVBV440T-MSALE10AW440T-MTALE11SATAUA
440T-MDBLE140A0D440T-MKEXE14BWBSBSBSBSBS440T-MSALE10AX440T-MTALE11SBSCSC
440T-MDBLE140A0E440T-MKEXE14BWBXBXBXBXBX440T-MSALE10AY440T-MTALE11SBTBTB
440T-MDBLE140A0F440T-MKEXE14BWBZBZBZBZBZ440T-MSALE10AZ440T-MTALE11SCSDSD
440T-MDBLE140A0N440T-MKEXE14BWCDCDCDCDCD440T-MSALE10BA440T-MTALE11SDSESE
440T-MDBLE140A0T440T-MKEXE14BZBXBXBXBXBX440T-MSALE10BB440T-MTALE11SFSGSG
440T-MDBLE140AAA440T-MKEXE14CA0C0C0C0C0C440T-MSALE10BC440T-MTALE11SHSISI
440T-MDBLE140AAD440T-MKEXE14CAABACADAEAF440T-MSALE10BD440T-MTALE11SOSPSP
440T-MDBLE140ABC440T-MKEXE14CAADADADADAD440T-MSALE10BE440T-MTALE11SOSPSU
440T-MDBLE140B0A440T-MKEXE14CACBCBCBCBCB440T-MSALE10BF440T-MTALE11SRSSSS
440T-MDBLE140B0C440T-MKEXE14CACBCCCDCECF440T-MSALE10BG440T-MTALE11SRSSST
440T-MDBLE140B0D440T-MKEXE14CACCCCCCCCCC440T-MSALE10BH440T-MTALE11SRSWSW
440T-MDBLE140B0E440T-MKEXE14CACDCDCDCDCD440T-MSALE10BI440T-MTALE11SSSTST
440T-MDBLE140B0F440T-MKEXE14CADAEAFAGAHA440T-MSALE10BJ440T-MTALE11STSVSV
440T-MDBLE140B0G440T-MKEXE14CBCCCCCCCCCC440T-MSALE10BK440T-MTALE11SVSTST
440T-MDBLE140B0O440T-MKEXE14CBCDCDCDCDCD440T-MSALE10BL440T-MTALE11SVSWSX
440T-MDBLE140B0U440T-MKEXE14CBCFCGCHCICJ440T-MSALE10BM440T-MTALE11SWTWTW
440T-MDBLE140BAS440T-MKEXE14CCAAABBABBCA440T-MSALE10BN440T-MTALE11TATBTB
440T-MDBLE140BBA440T-MKEXE14CCAFAFAFAFAF440T-MSALE10BO440T-MTALE11TAUAUA
440T-MDBLE140BBB440T-MKEXE14CCBBBBBBBBBB440T-MSALE10BP440T-MTALE11TBTCTC
440T-MDBLE140BBE440T-MKEXE14CCBCBCBCBCBC440T-MSALE10BR440T-MTALE11TBUBUB
440T-MDBLE140BBZ440T-MKEXE14CCCACACACACA440T-MSALE10BS440T-MTALE11TCTDTD
440T-MDBLE140BOB440T-MKEXE14CCCDCDCDCDCD440T-MSALE10BT440T-MTALE11TCUCUC
440T-MDBLE140BOC440T-MKEXE14CCDDDDDDDDDD440T-MSALE10BU440T-MTALE11TDTGTG
440T-MDBLE140C0A440T-MKEXE14CCDIDIDIDIDI440T-MSALE10BV440T-MTALE11TDUDUD
440T-MDBLE140C0D440T-MKEXE14CDCECECECECE440T-MSALE10BW440T-MTALE11TETHTH
440T-MDBLE140C0E440T-MKEXE14CECDCDCDCDCD440T-MSALE10BX440T-MTALE11TEUEUE
440T-MDBLE140C0F440T-MKEXE14CECFCFCFCFCF440T-MSALE10BY440T-MTALE11TFTITI
440T-MDBLE140C0G440T-MKEXE14CECFCGCHCICJ440T-MSALE10BZ440T-MTALE11TFUFUF
440T-MDBLE140C0H440T-MKEXE14CFCGCGCGCGCG440T-MSALE10CA440T-MTALE11TGUGUG
440T-MDBLE140C0P440T-MKEXE14CFHFHFHFHFHF440T-MSALE10CB440T-MTALE11THUHUH
440T-MDBLE140C0V440T-MKEXE14CGCHCHCHCHCH440T-MSALE10CC440T-MTALE11TIUIUI
440T-MDBLE140CAT440T-MKEXE14CHCICICICICI440T-MSALE10CD440T-MTALE11TJUJUJ
440T-MDBLE140CCA440T-MKEXE14CICJCJCJCJCJ440T-MSALE10CE440T-MTALE11TKUKUK
440T-MDBLE140CCC440T-MKEXE14CKCLCLCLCLCL440T-MSALE10CF440T-MTALE11TLULUL
440T-MDBLE140CCF440T-MKEXE14CKCLCMCNCOCP440T-MSALE10CG440T-MTALE11TMUMUM
440T-MDBLE140COG440T-MKEXE14CKCMCMCMCMCM440T-MSALE10CH440T-MTALE11TNUNUN
440T-MDBLE140D0A440T-MKEXE14CLCMCMCMCMCM440T-MSALE10CI440T-MTALE11UAUBUB
440T-MDBLE140D0B440T-MKEXE14CMDMDMDMDMDM440T-MSALE10CJ440T-MTALE11UAVAVA
440T-MDBLE140D0C440T-MKEXE14CNCPCPCPCPCP440T-MSALE10CK440T-MTALE11UCUDUD
440T-MDBLE140D0E440T-MKEXE14COCPCPCPCPCP440T-MSALE10CL440T-MTALE11UEUFUF
440T-MDBLE140D0F440T-MKEXE14CPCRCRCRCRCR440T-MSALE10CM440T-MTALE11UZVAVA
440T-MDBLE140D0G440T-MKEXE14CRCSCSCSCSCS440T-MSALE10CN440T-MTALE11VBVCVC
440T-MDBLE140D0H440T-MKEXE14CRCSCTCUCVCW440T-MSALE10CO440T-MTALE11VDVEVE
440T-MDBLE140D0I440T-MKEXE14CSCTCTCTCTCT440T-MSALE10CP440T-MTALE11VFVGVG
440T-MDBLE140D0R440T-MKEXE14CTCUCUCUCUCU440T-MSALE10CR440T-MTALE11VHVIVI
440T-MDBLE140D0U440T-MKEXE14CVCWCWCWCWCW440T-MSALE10CS440T-MTALE11VJVKVK
440T-MDBLE140D0V440T-MKEXE14CWDEDEDEDEDE440T-MSALE10CT440T-MTALE11VKVLVL
440T-MDBLE140D0W440T-MKEXE14CXCYCYCYCYCY440T-MSALE10CU440T-MTALE11VOVPVP
440T-MDBLE140D0X440T-MKEXE14CYCZCZCZCZCZ440T-MSALE10CV440T-MTALE11VRVSVS
440T-MDBLE140DAA440T-MKEXE14DADBDBDBDBDB440T-MSALE10CW440T-MTALE11VTVUVU
440T-MDBLE140DAU440T-MKEXE14DADBDCDDDEDF440T-MSALE10CX440T-MTALE11VVVWVW
440T-MDBLE140DBB440T-MKEXE14DADBDDDFDHDJ440T-MSALE10CY440T-MTALE11VXVYVY
440T-MDBLE140DCC440T-MKEXE14DADCDCDCDCDC440T-MSALE10CZ440T-MTALE11VZWAWA
440T-MDBLE140DDA440T-MKEXE14DADDDDDDDDDD440T-MSALE10DA440T-MTALE11WAXAXA
5. Product Advantages
  • IP67 Robust Protection: Shields against wheat grain dust and heavy rain, fitting both 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 loss.

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

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

  • Long-Term Durability: 300,000 mechanical cycles lower replacement frequency, cutting long-term operational expenses.

  • Clear Status Indication: Dual-color LED ensures safety status is visible in all environments, avoiding human error.

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. The business likely serves commercial wheat farms, large grain elevators, and wheat-processing food plants, offering products like automated harvesters, intelligent silo control systems, and grain conveyor networks.
The Allen Bradley 440T-MDBLE13ZAZA aligns perfectly 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 pain point for wheat clients, helping them meet strict grain handling safety standards, while multi-voltage compatibility adapts to farms’ mixed power setups (24V DC for moisture sensors, 230V AC for conveyors). The business may also provide farm-specific after-sales support, such as dust-cleaning guides and 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 and safety.
7. Application Scenarios
The Allen Bradley 440T-MDBLE13ZAZA 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 operations in dim silos.

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

  • Summer Wheat Drying Facilities: 80°C temperature tolerance maintains reliable 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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