Function and Application
The YBLX-44 series switch, also known as a fire-break limit switch, is suitable for power lines with a rated operating voltage up to 380V. It is used for lifting limit protection of general steel wire rope electric hoists, and can directly disconnect the main circuit of the motor. It complies with the standards: GB/T 14048.3, IEC 60947-3.
Detailed Specifications
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Protection Level | | IP44(YBLX-44/10), IP52(YBLX-44/20), IP52(YBLX-44/40) |
| Rated Operating Voltage | | AC 380V |
| Environmental Temperature | | -5℃~+40℃ |
| Relative Humidity | At a maximum temperature of +40℃, the air relative humidity shall not exceed 50%. At lower temperatures, higher relative humidity is allowed, for example, at 20℃, the relative humidity can reach 90%. Special measures should be taken for occasional condensation caused by temperature changes. | |
| Altitude | | ≤2000m |
| Installation Category | | Ⅱ |
| Pollution Degree | | Level 3 |
| Rated Insulation Voltage | | 415V |
| Application Scope | | Limit protection for lifting movement of general steel wire rope electric hoists of 0.5~10 tons CD1, MD1 type, which can directly disconnect the main circuit |
| Installation Conditions | | Install in a place without significant vibration and impact vibration |
| Model | Rated Operating Current | 10A, 20A, 40A |
| Maximum Motor Power That Can Be Controlled | 4.5kW, 7.5kW, 13kW |
| Rated Impulse Withstand Voltage | 2.5kV, 4kV, 4kV |
| Action Stroke | (7~9)mm, (7~9)mm, (8~10)mm |
| Allowable Overtravel | ≤3mm, ≤3mm, ≤3mm |
| Operating Force | ≤30N, ≤50N, ≤100N |
