LA38-11X/21 2-Position Self-Locking Rotary Switch | 20X/31 3-Position Self-Resetting Selector, 22mm, Silver Alloy Contact 【Product Overview】This is the YJ139-LA38 series short-handle rotary selector switch, designed for industrial control and DIY applications. It features 2-position (left-right) or 3-position (left-center-right) operation modes, with both self-locking and self-resetting options available to meet diverse equipment control needs. 【Key Specifications】- Mounting Hole Size: 22mm standard- Rated Current: ≤10A- Rated Voltage: Up to 660V- Contact Configuration: 1NO1NC (1 Normally Open + 1 Normally Closed) / 2NO (2 Normally Open)- Contact Material: Silver Alloy (AgNi), ensuring low contact resistance and long lifespan- Mechanical Life: - Normally Open Contact: ≥1,000,000 operations - Normally Closed Contact: ≥2,000,000 operations- Operation Type: - Self-Locking: Maintains position after rotation, requires another rotation to reset - Self-Resetting: Returns to center position automatically when released- Operation Feel: Sensitive rotation, smooth movement, strong rebound for reset types 【Application Scenarios】Widely used in control cabinets, machine tools, automation equipment, power distribution systems, and DIY projects for power switching, mode selection, and circuit control. 【Certifications】CE certified, RoHS compliant, suitable for global industrial use. DATA SHEET 字段 英文内容 Product Name Short-Handle Rotary Selector Switch Series Model YJ139-LA38 Series (LA38-11X/21, LA38-20X/31) Position Options 2-Position (Left/Right), 3-Position (Left/Center/Right) Operation Mode Self-Locking / Self-Resetting Mounting Hole Size 22mm Rated Current ≤10A Rated Voltage AC 380V / DC 230V Max Contact Type 1NO1NC / 2NO Contact Material Silver Alloy (AgNi) Mechanical Life ≥1,000,000~2,000,000 Cycles Features Sensitive Response, Durable Rotation, Smooth Operation Application Industrial Control, Automation Equipment, Power Distribution Certification CE, RoHS
