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Home Product KRT-SN-20B Sensor | KRT SN Series High-Precision Proximity Detector Module
Super clear indoor logo projector 20W KRT-SN-20B

KRT-SN-20B Sensor | KRT SN Series High-Precision Proximity Detector Module

KRT-SN-20B sensor
SN-20B proximity switch
KRT limit switch 20B
KRT-SN-20B
KRT-SN-20B sensor, a high-precision SN-20B proximity switch and KRT limit switch 20B, delivers reliable non-contact detection for industrial automation, machinery safety, and position control with robust durability in harsh environments.
Categories:Lighting
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Product Description

The KRT-SN-20B sensor, commonly referred to as the SN-20B proximity switch or KRT limit switch 20B, is a rugged industrial device designed for automation, robotics, and material handling systems. It operates on a 12-24V DC range and functions reliably within temperatures of -20°C to 70°C. Equipped with a 1.44-inch LCD for status monitoring, this sensor offers a 20mm detection range for precise object sensing. It features one digital output for direct control of external modules and supports RS-485 communication for seamless integration into industrial networks. Built with an IP67-rated housing, it withstands dust, moisture, and mechanical stress. While its compact design simplifies installation, the fixed detection range may require careful positioning. Ideal for conveyor systems and machinery safety applications, it balances durability with responsive performance.
Parameter Specification
Product Model KRT-SN-20B sensor
Switch Type SN-20B proximity switch
Application KRT limit switch 20B series
Supply Voltage 12-24V DC (±10%)
Current Consumption ≤200mA
Sensing Distance 2-5mm (adjustable)
Output Configuration NPN normally open (NO) / normally closed (NC)
Protection Rating IP67 (dust/water resistant)
Operating Temperature -25°C to +70°C
Material Nickel-plated brass housing, PC sensing face
Contact Capacity 100mA @ 30V DC
Response Time ≤0.5ms
Electrical Life 1,000,000 cycles
Installation M12 threaded barrel or bracket mounting
Cable Length 2 meters standard (shielded PVC cable)
Weight Approx. 80g
Certification CE, RoHS compliant
question:What shipping methods do you support?
answer:We support DHL, Fedex, UPS, and other major shipping methods.
question:Can I request low-value declaration for shipments?
answer:Yes, low-value declaration is available upon request. Contact our team for assistance.
question:Do you provide technical selection services?
answer:Yes, we offer technical selection guidance and product recommendations to meet your needs.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What shipping methods do you support?
answer:We support DHL, Fedex, UPS, and other major shipping methods.
question:Can I request low-value declaration for shipments?
answer:Yes, low-value declaration is available upon request. Contact our team for assistance.
question:Do you provide technical selection services?
answer:Yes, we offer technical selection guidance and product recommendations to meet your needs.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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