The YBLX-22 series travel switches are devices used to limit the travel of cranes and various equipment. The series includes three different operating modes: single-arm with roller, double-roller fork arm, and hammer-type. They are suitable for translation mechanisms with small inertia travel, translation mechanisms with large inertia travel, and lifting mechanisms. They have an IP52 protection level, rated heating current of 20A, rated voltage of AC 380V/DC220V, rated control current of AC 20A/DC0.2A, altitude of ≤2000m, ambient temperature of -5℃~+40℃, and relative humidity of ≤80%. They comply with GB 14048.5 standard.
The YBLX-22 series stroke switches are designed for AC 50 Hz, up to 380 V, 20 A, and DC 220 V lines, limiting travel in lifting machinery, metallurgical equipment, and coal‑coke plants. The series includes three operation modes: single‑person with roller, double‑roller fork, and heavy‑hammer type.
Technical parameters include IP52 protection, rated heating current 20 A, rated voltage AC 380 V / DC 220 V, rated control current AC 20 A / DC 0.2 A, altitude up to 2000 m, operating temperature –5 °C to +40 °C, and relative humidity up to 80 %. Ordering requires specifying the model, name, and quantity, e.g., “YBLX-22/1 行程开关 100只”. This manual is written in Chinese.
| Protection level | IP52 |
|---|---|
| Rated heating current | 20 A |
| Rated voltage | AC 380 V / DC 220 V |
| Rated control current | AC 20 A / DC 0.2 A |
| Maximum altitude | 2000 m |
| Operating temperature | -5 °C ~ +40 °C |
| Relative humidity | ≤80 % |
| Application range | Limits travel of hoisting and other equipment |
| Standard compliance | GB 14048.5 |
The series offers three modes: single‑person with roller (code 1), double‑roller fork (code 2), and heavy‑hammer type (code 3).
Include the model, name and quantity, for example: YBLX-22/1 行程开关 100只.