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Allen Bradley 440T-ASCBE143BBI Safety Interlock SWITCH

Oct. 17 , 2025
1. Product Name
Allen Bradley 440T-ASCBE143BBI Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-ASCBE143BBI is an IP67-rated safety interlock SWITCH with 316L stainless steel housing, designed to resist corrosion and extreme vibration for reliable use in agricultural and industrial harsh environments.
3. Product Description
The Allen Bradley 440T-ASCBE143BBI is a rugged safety interlock SWITCH, part of Allen Bradley’s 440T series tailored to solve two critical challenges in high-intensity operations: corrosive elements and persistent mechanical vibration. This Allen Bradley SWITCH acts as a strict safety barrier, allowing access to hazardous areas—such as vibrating wheat combine harvesters, corrosive grain storage silos, or chemical processing equipment—only when machinery is fully shut down and safety conditions (like vibration stop or pressure release) are satisfied.
Crafted with thick 316L stainless steel housing (more corrosion-resistant than standard stainless steel) and shock-absorbing industrial polymer, the Allen Bradley SWITCH achieves IP67 protection. This rating lets it withstand high-pressure water jets (up to 80bar), block 100% dust ingress, and endure temporary submersion (1 meter for 30 minutes)—ideal for rainy wheat harvest seasons, dusty flour mills, or industrial sites with frequent cleaning. Its core interlock mechanism features a reinforced double-latch design, specifically engineered to resist loosening under extreme vibration (up to 50Hz), preventing accidental unlocks that could cause safety incidents. Compatible with 12V DC/24V DC/230V AC power systems, the Allen Bradley SWITCH integrates smoothly with agricultural machinery controls (e.g., combine harvester safety circuits) and industrial safety PLCs, thanks to anti-loosen terminal blocks that reduce the need for frequent re-adjustment.
Compliant with EN ISO 14119 and IEC 60947-5-1 standards, the Allen Bradley SWITCH meets Category 3 safety requirements with Performance Level d (PLd). It operates stably in a temperature range of -35°C to 75°C, handles 95% non-condensing humidity, and supports a maximum current of 10A at 250V AC—suitable for medium-to-heavy-load equipment like large wheat cleaners or industrial mixing tanks. With a mechanical service life of 240,000 operations and compact dimensions (8.7×6.5×2.5cm), the Allen Bradley SWITCH balances durability, vibration resistance, and space efficiency for tight installation spots, such as harvester engine bays or conveyor joint guards.
4. Product Model
440T-ASCBE143BBI440T-MDSLE11ACAF440T-MMRXE11JAKA440T-MSGAU21AB
440T-ASCBE143BBJ440T-MDSLE11ACBC440T-MMRXE11JBJC440T-MSGAU21AC
440T-ASCBE143BBK440T-MDSLE11ACEC440T-MMRXE11JBJD440T-MSGAU21AD
440T-ASCBE143BBL440T-MDSLE11ADAE440T-MMRXE11JDJE440T-MSGAU21AE
440T-ASCBE143BBM440T-MDSLE11ADAH440T-MMRXE11JDJF440T-MSGAU21AF
440T-ASCBE143BBN440T-MDSLE11ADAI440T-MMRXE11KDKE440T-MSGAU21AG
440T-ASCBE143BBO440T-MDSLE11AEAF440T-MMRXE11KDKF440T-MSGAU21AH
440T-ASCBE143BBP440T-MDSLE11AEAJ440T-MMRXE11LALB440T-MSGAU21AI
440T-ASCBE143BBR440T-MDSLE11AEEG440T-MMRXE11LAMA440T-MSGAU21AJ
440T-ASCBE143BBS440T-MDSLE11AFAG440T-MMRXE11LBLC440T-MSGAU21AK
440T-ASCBE143BBT440T-MDSLE11AFAK440T-MMRXE11MAMB440T-MSGAU21AL
440T-ASCBE143BBU440T-MDSLE11AGAH440T-MMRXE11MBMC440T-MSGAU21AM
440T-ASCBE143BBV440T-MDSLE11AGBG440T-MMRXE11NANB440T-MSGAU21AN
440T-ASCBE143BBW440T-MDSLE11AHAI440T-MMRXE11NBNC440T-MSGAU21AO
440T-ASCBE143BBX440T-MDSLE11AHAJ440T-MMRXE11OCOD440T-MSGAU21AP
440T-ASCBE143BBY440T-MDSLE11AIAJ440T-MMRXE11PAPB440T-MSGAU21AR
440T-ASCBE143BBZ440T-MDSLE11AKAL440T-MMRXE11PBPC440T-MSGAU21AS
440T-ASCBE143BCA440T-MDSLE11AMAN440T-MMRXE11RARB440T-MSGAU21AT
440T-ASCBE143BCB440T-MDSLE11AMAO440T-MMRXE11RBRC440T-MSGAU21AU
440T-ASCBE143BCC440T-MDSLE11ASAT440T-MMRXE11RSRA440T-MSGAU21AV
440T-ASCBE143BCD440T-MDSLE11ASAU440T-MMRXE11SAIA440T-MSGAU21AW
440T-ASCBE143BCE440T-MDSLE11ATAV440T-MMRXE11SASB440T-MSGAU21AX
440T-ASCBE143BCF440T-MDSLE11AUAZ440T-MMRXE11SBSC440T-MSGAU21AY
440T-ASCBE143BCG440T-MDSLE11AVAW440T-MMRXE11TATB440T-MSGAU21AZ
440T-ASCBE143BCH440T-MDSLE11AVAX440T-MMRXE11TBTC440T-MSGAU21BA
440T-ASCBE143BCI440T-MDSLE11AVAY440T-MMRXE11UAUB440T-MSGAU21BB
440T-ASCBE143BCJ440T-MDSLE11AWWG440T-MMRXE11UBUC440T-MSGAU21BC
440T-ASCBE143BCK440T-MDSLE11AXAY440T-MMRXE11UBUD440T-MSGAU21BD
440T-ASCBE143BCL440T-MDSLE11AXAZ440T-MMRXE11VAVB440T-MSGAU21CA
440T-ASCBE143BCM440T-MDSLE11BAAA440T-MMRXE11VBVC440T-MSGAU21CB
440T-ASCBE143BCN440T-MDSLE11BABB440T-MMRXE11VBVD440T-MSGAU21CC
440T-ASCBE143BCO440T-MDSLE11BABC440T-MMRXE11WAWB440T-MSGAU21CD
440T-ASCBE143BCP440T-MDSLE11BABD440T-MMRXE11WNWP440T-MSGAU21CE
440T-ASCBE143BCR440T-MDSLE11BACA440T-MMRXE11XEXF440T-MSGAU21CF
440T-ASCBE143BCS440T-MDSLE11BADA440T-MMRXE11XHXI440T-MSGAU21DA
440T-ASCBE143BCT440T-MDSLE11BAEA440T-MMRXE11ZAZB440T-MSGAU21DB
440T-ASCBE143BCU440T-MDSLE11BAFA440T-MMRXE12440T-MSGAU21DC
440T-ASCBE143BCV440T-MDSLE11BAGA440T-MMRXE120A0B440T-MSGAU21DD
440T-ASCBE143BCW440T-MDSLE11BAHA440T-MMRXE120D0E440T-MSGAU21DE
440T-ASCBE143BCX440T-MDSLE11BB0B440T-MMRXE120F0G440T-MSGAU21DF
440T-ASCBE143BCY440T-MDSLE11BBAB440T-MMRXE120H0J440T-MSGAU21DG
440T-ASCBE143BCZ440T-MDSLE11BBBC440T-MMRXE12AABA440T-MSGAU21DH
440T-ASCBE143BDA440T-MDSLE11BBBD440T-MMRXE12AABB440T-MSGAU21DI
440T-ASCBE143BDB440T-MDSLE11BBCB440T-MMRXE12BABB440T-MSGAU21DK
440T-ASCBE143BDC440T-MDSLE11BBCC440T-MMRXE12BACA440T-MSGAU21DL
440T-ASCBE143BDD440T-MDSLE11BBDD440T-MMRXE12BBBC440T-MSGAU21DM
440T-ASCBE143BDE440T-MDSLE11BBEB440T-MMRXE12BCBD440T-MSGAU21DN
5. Product Advantages

  • Superior Corrosion Resistance: 316L stainless steel housing stands up to salt air, agricultural chemicals, and industrial cleaners, extending service life.

  • IP67 Harsh-Environment Protection: Withstands high-pressure water, full dust, and temporary submersion—reliable in rainy or dusty workplaces.

  • Extreme Vibration Resistance: Reinforced double-latch design resists 50Hz vibration, avoiding false unlocks in combine harvesters or heavy conveyors.

  • Wide Voltage Compatibility: Works with 12V DC/24V DC/230V AC systems, matching diverse agri-industrial power setups without converters.

  • Global Safety Compliance: PLd/Category 3 rating meets EN/IEC standards, preventing medium-risk accidents in harsh conditions.

  • Low Maintenance: Anti-loosen terminals and corrosion-resistant materials reduce re-calibration and replacement needs, cutting costs.

6. Business Insight on www.wheat-auto.com
While direct site access is unavailable, the domain “wheat-auto” confirms a focus on wheat-centric agricultural automation, offering end-to-end solutions: from vibration-prone combine harvesters and corrosive grain silos to dusty flour processing lines. It targets high-intensity wheat operations—rain-prone farms, inland grain elevators, and industrial flour mills—where corrosion and vibration threaten equipment safety.
The Allen Bradley 440T-ASCBE143BBI’s 316L steel and vibration-resistant latch make it a key component of www.wheat-auto.com’s offerings: integrated into combine harvester engine guards (to handle harvest vibration), grain silo access doors (to resist moisture corrosion), and flour cleaner panels (to block dust). The business leverages the SWITCH’s compliance with ISO 23387 (grain handling safety standards) to ensure reliability during peak harvests or harsh weather. It likely provides farm-specific after-sales services, such as corrosion inspections and vibration testing, to address rural operational challenges. This aligns with “smart agriculture” trends, using durable Allen Bradley SWITCHes to boost wheat production efficiency while minimizing safety risks from harsh conditions.
7. Application Scenarios
The Allen Bradley 440T-ASCBE143BBI SWITCH performs exceptionally in corrosion-prone and high-vibration environments:

  • Wheat Combine Harvesters: Installed on engine guards, the vibration-resistant latch stays secure during harvest, while IP67 blocks rain and dust.

  • Inland Grain Silos: Mounted on access doors, 316L steel resists moisture corrosion from stored grain, ensuring long-term safety.

  • Flour Processing Mills: Used on cleaner guards, IP67 blocks flour dust, and corrosion-resistant housing withstands mild cleaning chemicals.

  • Mining Conveyors: Integrated into conveyor joint guards, vibration resistance handles heavy-load grain transport, and IP67 blocks mine dust.

  • Cold Wheat Storage: Applied to freezer silo doors, -35°C temperature resilience works reliably in winter cold-storage facilities.

  • Agricultural Chemical Tanks: Used on pesticide tank guards for wheat farms, 316L steel resists chemical corrosion, and IP67 prevents leaks from damaging the SWITCH.


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