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Allen Bradley 440T-ASCBE143DFA Safety Interlock SWITCH

Oct. 17 , 2025
1. Product Name
Allen Bradley 440T-ASCBE143DFA Safety Interlock SWITCH
2. Product Introduction
The Allen Bradley 440T-ASCBE143DFA is an IP67-rated safety interlock SWITCH with 316L stainless steel housing, designed to resist moisture, chemical corrosion, and vibration for harsh agricultural and industrial environments.
3. Product Description
The Allen Bradley 440T-ASCBE143DFA is a rugged safety interlock SWITCH, part of Allen Bradley’s 440T series engineered to address critical challenges in wet, chemical-exposed operations—such as rainy wheat farms, pesticide storage areas, or industrial cleaning zones. This Allen Bradley SWITCH acts as a mandatory safety barrier, permitting access to hazardous zones (e.g., wheat cleaning machines, chemical tanks) only when equipment is fully shut down and safety conditions (e.g., chemical neutralization, water drainage) are met.
Constructed with high-grade 316L stainless steel (superior to standard steel in chemical resistance) and impact-resistant industrial polymer, the Allen Bradley SWITCH achieves IP67 protection. This rating allows it to withstand high-pressure water jets (up to 80bar), block 100% dust ingress, and endure temporary submersion (1m for 30 minutes)—perfect for rainy harvest seasons, frequent equipment sanitization, or chemical spill-prone areas. Its core interlock mechanism features a sealed dual-latch design, tailored to resist loosening under moderate vibration (up to 45Hz), preventing accidental unlocks that could lead to safety incidents. With broad voltage compatibility (24V DC/110V AC/230V AC), the Allen Bradley SWITCH integrates seamlessly with agricultural controls (e.g., wheat washer safety circuits) and industrial safety PLCs, via anti-corrosion terminal blocks that reduce maintenance needs.
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 -25°C to 75°C, handles 95% non-condensing humidity, and supports a maximum current of 10A at 250V AC—suitable for medium-load equipment like wheat cleaning conveyors or small chemical storage tanks. With a mechanical service life of 220,000 operations and compact dimensions (8.4×6.2×2.2cm), the Allen Bradley SWITCH balances durability, environmental resistance, and space efficiency for tight installations (e.g., washer control panels or tank access doors).
4. Product Model
440T-ASCBE143DFA440T-MDSLE11XAYA440T-MRKSE10AM440T-MSRUE10RD
440T-ASCBE143DFB440T-MDSLE11XSXG440T-MRKSE10AN440T-MSRUE10RP
440T-ASCBE143DFC440T-MDSLE11XVAB440T-MRKSE10AO440T-MSRUE10RR
440T-ASCBE143DFD440T-MDSLE11XVBA440T-MRKSE10AP440T-MSRUE10RS
440T-ASCBE143DFE440T-MDSLE11XVSF440T-MRKSE10AR440T-MSRUE10RT
440T-ASCBE143DFF440T-MDSLE11XXYY440T-MRKSE10AS440T-MSRUE10RV
440T-ASCBE143DFG440T-MDSLE11YAYB440T-MRKSE10AT440T-MSRUE10SA
440T-ASCBE143DFH440T-MDSLE11YAZA440T-MRKSE10AU440T-MSRUE10SB
440T-ASCBE143DFI440T-MDSLE11ZAAB440T-MRKSE10AV440T-MSRUE10SC
440T-ASCBE143DFJ440T-MDSLE11ZAZB440T-MRKSE10AW440T-MSRUE10SD
440T-ASCBE143DFK440T-MDSLE12440T-MRKSE10AX440T-MSRUE10SE
440T-ASCBE143DFL440T-MDSLE120A0B440T-MRKSE10AY440T-MSRUE10SF
440T-ASCBE143DFM440T-MDSLE120A0C440T-MRKSE10AZ440T-MSRUE10SH
440T-ASCBE143DFN440T-MDSLE120B0A440T-MRKSE10BA440T-MSRUE10SP
440T-ASCBE143DFO440T-MDSLE120B0C440T-MRKSE10BB440T-MSRUE10SR
440T-ASCBE143DFP440T-MDSLE120C0D440T-MRKSE10BC440T-MSRUE10SS
440T-ASCBE143DFR440T-MDSLE120C0H440T-MRKSE10BD440T-MSRUE10SW
440T-ASCBE143DFS440T-MDSLE120D0E440T-MRKSE10BE440T-MSRUE10TA
440T-ASCBE143DFT440T-MDSLE120E0F440T-MRKSE10BF440T-MSRUE10TB
440T-ASCBE143DFU440T-MDSLE120F0G440T-MRKSE10BG440T-MSRUE10TC
440T-ASCBE143DFV440T-MDSLE120G0H440T-MRKSE10BH440T-MSRUE10TD
440T-ASCBE143DFW440T-MDSLE120H0I440T-MRKSE10BI440T-MSRUE10TE
440T-ASCBE143DFX440T-MDSLE120I0J440T-MRKSE10BJ440T-MSRUE10TF
440T-ASCBE143DFY440T-MDSLE120J0K440T-MRKSE10BK440T-MSRUE10TG
440T-ASCBE143DFZ440T-MDSLE120K0L440T-MRKSE10BL440T-MSRUE10TH
440T-ASCBE143EAA440T-MDSLE120L0M440T-MRKSE10BM440T-MSRUE10TI
440T-ASCBE143EAB440T-MDSLE120M0N440T-MRKSE10BN440T-MSRUE10TJ
440T-ASCBE143EAC440T-MDSLE120N0O440T-MRKSE10BP440T-MSRUE10TK
440T-ASCBE14AA440T-MDSLE120O0P440T-MRKSE10BR440T-MSRUE10TL
440T-ASCBE14AB440T-MDSLE120P0R440T-MRKSE10BS440T-MSRUE10TM
440T-ASCBE14AC440T-MDSLE120R0S440T-MRKSE10BT440T-MSRUE10TN
440T-ASCBE14AD440T-MDSLE120S0T440T-MRKSE10BU440T-MSRUE10TP
440T-ASCBE14AE440T-MDSLE120T0U440T-MRKSE10BV440T-MSRUE10TS
440T-ASCBE14AF440T-MDSLE120U0V440T-MRKSE10BW440T-MSRUE10TT
440T-ASCBE14AG440T-MDSLE120V0W440T-MRKSE10BX440T-MSRUE10UA
440T-ASCBE14AH440T-MDSLE120W0X440T-MRKSE10BY440T-MSRUE10UC
440T-ASCBE14AI440T-MDSLE120X0Y440T-MRKSE10BZ440T-MSRUE10UE
440T-ASCBE14AJ440T-MDSLE120Y0Z440T-MRKSE10CA440T-MSRUE10UG
440T-ASCBE14AK440T-MDSLE120ZAA440T-MRKSE10CB440T-MSRUE10UI
440T-ASCBE14AL440T-MDSLE12AABA440T-MRKSE10CC440T-MSRUE10UU
440T-ASCBE14AM440T-MDSLE12AABB440T-MRKSE10CD440T-MSRUE10VA
440T-ASCBE14AN440T-MDSLE12BACA440T-MRKSE10CE440T-MSRUE10VB
440T-ASCBE14AO440T-MDSLE12BFBG440T-MRKSE10CF440T-MSRUE10VC
440T-ASCBE14AP440T-MDSLE12CADA440T-MRKSE10CG440T-MSRUE10VD
440T-ASCBE14AR440T-MDSLE12DAEA440T-MRKSE10CH440T-MSRUE10VF
440T-ASCBE14AS440T-MDSLE12EAFA440T-MRKSE10CI440T-MSRUE10WA
440T-ASCBE14AT440T-MDSLE12FAGA440T-MRKSE10CJ440T-MSRUE10WL
440T-ASCBE14AU440T-MDSLE12GAHA440T-MRKSE10CK440T-MSRUE10XA
440T-ASCBE14AV440T-MDSLE12HAIA440T-MRKSE10CL440T-MSRUE10XB
440T-ASCBE14AW440T-MDSLE12IAIB440T-MRKSE10CM440T-MSRUE10XF
440T-ASCBE14AX440T-MDSLE12IAJA440T-MRKSE10CN440T-MSRUE10XG
440T-ASCBE14AY440T-MDSLE12JAKA440T-MRKSE10CO440T-MSRUE10XJ
440T-ASCBE14AZ440T-MDSLE12KALA440T-MRKSE10CR440T-MSRUE10XK
440T-ASCBE14BA440T-MDSLE12LAMA440T-MRKSE10CT440T-MSRUE10XL
440T-ASCBE14BB440T-MDSLE12MANA440T-MRKSE10CU440T-MSRUE10XM
440T-ASCBE14BC440T-MDSLE12NAOA440T-MRKSE10CV440T-MSRUE10XS
440T-ASCBE14BD440T-MDSLE12OAOB440T-MRKSE10CX440T-MSRUE10XX
440T-ASCBE14BE440T-MDSLE12OAPA440T-MRKSE10CY440T-MSRUE10YA
440T-ASCBE14BF440T-MDSLE12PARA440T-MRKSE10CZ440T-MSRUE10YB
440T-ASCBE14BG440T-MDSLE12RASA440T-MRKSE10DA440T-MSRUE10YJ
440T-ASCBE14BH440T-MDSLE12SATA440T-MRKSE10DB440T-MSRUE10ZA
440T-ASCBE14BI440T-MDSLE12TAUA440T-MRKSE10DC440T-MSRUE10ZB
440T-ASCBE14BJ440T-MDSLE12UAVA440T-MRKSE10DD440T-MSRUE10ZD
440T-ASCBE14BK440T-MDSLE12VAWA440T-MRKSE10DE440T-MSRUE10ZF
440T-ASCBE14BL440T-MDSLE12WAXA440T-MRKSE10DF440T-MSRUE10ZG
440T-ASCBE14BM440T-MDSLE12XAYA440T-MRKSE10DG440T-MSRUE10ZH
440T-ASCBE14BN440T-MDSLE12YAZA440T-MRKSE10DH440T-MSRUE10ZP
440T-ASCBE14BO440T-MDSLE12ZAAB440T-MRKSE10DI440T-MSRUE10ZT
440T-ASCBE14BP440T-MDSLE20440T-MRKSE10DJ440T-MSRUE11
5. Product Advantages

  • Strong Chemical Resistance: 316L stainless steel housing withstands agricultural pesticides, industrial cleaners, and mild acids, extending service life.

  • IP67 Environmental Protection: Endures high-pressure water, full dust, and temporary submersion—reliable in wet or dusty workplaces.

  • Vibration Stability: Sealed dual-latch design resists 45Hz vibration, preventing false unlocks in harvesters or conveyors.

  • Versatile Voltage Support: Works with 24V DC/110V AC/230V AC systems, matching diverse agri-industrial power setups.

  • Global Safety Compliance: PLd/Category 3 rating meets EN/IEC standards, reducing medium-risk accident risks.

  • Low Upkeep: Anti-corrosion terminals and sealed mechanism minimize maintenance, cutting operational 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 rainy-season combine harvesters and chemical-treated grain storage to dusty flour processing lines. It targets commercial wheat farms, regional grain elevators, and small-to-medium flour mills—where moisture, chemicals, and vibration are common operational challenges.
The Allen Bradley 440T-ASCBE143DFA’s 316L steel, IP67 protection, and voltage flexibility make it a key component of www.wheat-auto.com’s offerings: integrated into wheat washer safety panels (to resist cleaning water), pesticide storage tank guards (to handle chemical exposure), and rainy-region harvester engine doors (to block moisture). The business leverages the SWITCH’s compliance with ISO 23387 (grain handling safety standards) to ensure reliability during peak harvests or chemical application. It likely provides farm-specific after-sales services, such as corrosion checks and water-resistance testing, to address rural operational pain points. This aligns with “smart agriculture” trends, using durable Allen Bradley SWITCHes to boost wheat production efficiency while mitigating risks from wet/chemical environments.
7. Application Scenarios
The Allen Bradley 440T-ASCBE143DFA SWITCH excels in wet, chemical-prone, and moderate-vibration environments:

  • Wheat Cleaning Plants: Installed on washer guards, IP67 resists cleaning water jets, and 316L steel withstands mild detergents.

  • Pesticide Storage for Wheat Farms: Mounted on chemical tank access doors, 316L steel resists pesticide corrosion, ensuring safe entry post-neutralization.

  • Rainy-Region Combine Harvesters: Used on engine bay guards, IP67 blocks rain, and vibration resistance handles harvest machine movement.

  • Food Processing (Wash Zones): Integrated into flour mixer guards, IP67 endures high-pressure sanitization, and 316L steel resists food-safe cleaners.

  • Industrial Chemical Tanks (Small-Scale): Applied to solvent tank guards, chemical resistance prevents damage from mild industrial solvents.

  • Aquatic Wheat Feed Facilities: Used on feed mixer guards, IP67 resists water splashes, and 316L steel avoids rust from humid conditions.



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