220V常開無源高壓磁性接近開關WB-SF121RDO
產品概述
WB-SF121RDO是一款220V常開型無源高壓磁性接近開關，采用磁感應原理實現(xiàn)非接觸式檢測。該產品設計緊湊，適用于工業(yè)自動化、智能家居、安防系統(tǒng)等多種場景，能夠可靠檢測磁性物體的接近或遠離狀態(tài)。作為無源器件，它無需額外供電即可工作，簡化了安裝和布線流程。49
技術特點
該開關采用高壓設計，支持220V交流電壓直接接入，具備良好的電氣隔離性能。常開型結構在磁鐵接近時導通，遠離時斷開，響應時間快且動作穩(wěn)定。感應距離可調范圍1-40mm（具體取決于配套磁鐵的磁力強度），工作溫度覆蓋-20至75攝氏度，適應潮濕環(huán)境（35%-95%RH）。外殼采用耐用材料封裝，防護性能優(yōu)異，確保在復雜工況下長期穩(wěn)定運行。217
功能描述
WB-SF121RDO通過內置磁敏元件實現(xiàn)信號轉換，當磁性物體進入感應區(qū)域時，內部觸點閉合輸出信號；物體離開后觸點自動復位。產品支持直接控制220V負載，最大開關電流1A，適用于門禁控制、設備位置檢測、自動化流水線等場景。引線采用300mm長UL認證線材，安裝方式靈活，可嵌入式或表面固定。516
應用場景
典型應用包括智能照明系統(tǒng)的衣柜開關、工業(yè)設備的門狀態(tài)監(jiān)測、傳送帶物料檢測等。其無源特性特別適合需避免電氣干擾的場合，如精密儀器周邊。高壓設計使其能直接接入市電系統(tǒng)，減少中間繼電器使用。配套磁鐵可選低壓/高壓通用型，白色或標準款滿足不同美觀需求。111
Product Overview
The WB-SF121RDO is a 220V normally open passive high-voltage magnetic proximity switch utilizing magnetic induction for contactless detection. With compact design, it suits industrial automation, smart home systems, and security applications, reliably sensing the approach or departure of magnetic objects. As a passive device, it operates without external power supply, simplifying installation. 1925
Technical Features
This switch features high-voltage compatibility (220V AC direct connection) with excellent electrical isolation. The NO (Normally Open) mechanism ensures fast response (<2.5ms) and stable actuation when magnets approach. Adjustable sensing range (1-40mm, magnet-dependent) and wide operating temperature (-20~75°C) with humidity resistance (35%-95% RH) enhance environmental adaptability. Durable housing provides robust protection for long-term reliability. 1820
Functional Description
Through built-in magnetic sensing components, the WB-SF121RDO triggers signal output upon detecting magnetic targets: contacts close within sensing range and reset automatically afterward. Capable of directly switching 220V loads (1A max), it’s ideal for access control, equipment positioning, and assembly lines. Includes 300mm UL-certified cables for flexible mounting options. 1013
Applications
Widely used in smart lighting (e.g., wardrobe switches), industrial door status monitoring, and conveyor belt object detection. Its passive nature eliminates electrical interference risks in sensitive environments like precision instruments. High-voltage design allows direct mains integration, reducing relay dependencies. Optional universal magnets (low/high voltage) and white/standard styles meet aesthetic needs. 37
220V常開無源高壓磁性接近開關WB-SF121RDO
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