Euchner CET-A-BWK-50X - IP67 50mm Non-Contact - Industrial Stainless - Vibration

Product Specification

​1. Product Overview and Safety Function

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The Euchner ​08443​ is a high-security ​Coded-Magnetic Safety Switch​ from the proven ​AZM Series, designed to reliably monitor the position of guards, doors, or hatches in critical industrial safety applications. Its fundamental purpose is to prevent hazardous machine operation whenever access to a dangerous zone is possible. Unlike mechanical limit switches, the AZM 08443 operates via a ​non-contact magnetic principle. When the separately purchased actuator magnet (e.g., AZ16/AZ30 series) aligns correctly within the switch’s detection zone (typically 3-9mm gap distance depending on magnet), it releases the integrated mechanical locking bolt. This action changes the internal safety contact state (normally closed NC) to allow machine operation only when the guard is securely closed. The robust zinc die-cast housing provides significant ​resistance to tampering, vibration, and environmental stresses.

​2. Critical Technical Specifications and Ratings

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The AZM 08443 core unit specifies several vital parameters for safe integration. Key among these is its ​Safety Classification: Rated for ​SIL 3 (IEC 61508, IEC 62061)​​ and ​PL e (ISO 13849-1), Category 4. It features ​3 Safety Contacts​ (1 NC for safety signal + 2 N/O auxiliary contacts). Electrical ratings include ​250V AC/24V DC, max. ​6A (AC-15)​​ / ​4A (DC-13)​​ switching capacity. Environmental protection is rated at ​IP67​ (dust-tight and withstands temporary immersion), essential for harsh industrial settings like machining centers or washdown areas. Its operating temperature spans ​​-20°C to +70°C, and it withstands high shock/vibration levels per ​EN 60947-5-1. Note: 08443 is a base part number; actual ordering requires suffixes for voltage (e.g., ​​-A​ = 24V DC, ​​-G​ = 110V AC/DC, ​​-H​ = 230V AC), contact configuration, and approvals (e.g., ​​-X1​ = UL/CUL).

​3. Primary Applications in Industrial Safety

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This switch dominates applications demanding ​non-contact sensing, ​high tamper resistance, and ​robust physical security. Its primary use is ​safeguarding access points​ to hazardous machinery areas: CNC enclosures, robotic cells, press brakes, automated assembly lines, and injection molding machines. The AZM 08443 excels wherever vibration, frequent access cycles, or environmental contaminants (dust, oil, moisture) would compromise mechanical switches. It's also key for guarding systems requiring monitored ​interlocking doors, safety gates, or ​hinged access panels​ where mechanical wear must be minimized and coded signals prevent bypass attempts. Industries like automotive, aerospace, pharmaceutical, food processing, and heavy machinery leverage its fail-safe design for compliance with global machine safety standards (e.g., OSHA, EN ISO 14119, ANSI B11).

​4. Distinct Advantages and User Benefits

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Selecting the Euchner AZM 08443 delivers significant operational and safety advantages. Its ​coded magnetic system​ offers extremely ​high tamper resistance​ – generic magnets or mechanical shims cannot trigger the switch. The ​non-contact operation​ guarantees exceptionally ​long service life (>10 million cycles)​​ without mechanical wear on internal components, translating to ​reduced maintenance​ and ​downtime costs. The ​positive-locking bolt mechanism​ ensures the guard physically cannot open until the machine is fully stopped. Standard ​IP67 protection​ allows reliable operation in dirty, wet, or high-pressure cleaning environments. Integrated ​status LEDs​ provide clear visual feedback on lock/unlock/signal states, simplifying diagnostics and reducing troubleshooting time. Euchner’s global certifications (UL, CSA, CE, TÜV) ease integration into complex safety circuits worldwide, ensuring regulatory compliance.

​5. Key Functional Features and Operation

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Operationally, the 08443 combines advanced magnetic sensing with mechanical locking. The ​unique magnetic code​ (detected via internal Hall sensor) ensures only the designated actuator magnet (AZ-series) can unlock it, preventing common defeat methods. Upon guard closure and magnet proximity, an ​electrically driven lock pin releases, confirming guard position to the safety controller. If the guard is forcibly opened while locked or power fails, the bolt forcibly blocks movement, creating ​positive mechanical locking force >800 N (static)​. The NC safety contact opens on loss of magnetic signal (guard open), triggering machine shutdown. Optional ​manual release keys​ (like SRS 1) enable authorized overrides for maintenance. Connection is via ​M12 plug connector​ (IP67-rated) or ​Flying Leads. The compact, robust design supports versatile ​flush mounting​ or ​surface mounting​ configurations using integrated threaded bores. Factory calibration ensures consistent trip points regardless of installation angle.

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Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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