LX915, LX918 series marine limit switch
1. Product introduction
LX915 and LX918 series marine limit switches are used in circuits with AC 50-60Hz, voltage up to 500V and DC voltage up to 440V, to limit the travel of various mechanisms, and can also be directly used as 5.5kw three-phase Squirrel-cage asynchronous motor (two-phase fire off of main source) limit switch. Structure and working principle The shell of the limit switch is made of copper alloy, which has good mechanical strength and good corrosion resistance. Under the environmental conditions of marine ships, the performance of the material will not deteriorate. The shell type is protective type, and the protection level can reach IP67. Due to the spring action, it can automatically reset. Operating position: 45°→0°←45° The opening and closing of the contact of the limit switch is determined by the position of the cam. Compliant with the standard IEC377-2 control switch special requirements, and passed the China Classification Society inspection, in line with marine standards. The nameplate is marked with CCS ship inspection mark.
2. Work and main technical parameters
Ambient air temperature -25°C-+45°C Humid air at sea with oil mist, mold There is any tilt and swing ≤45°C Vibration, shock, vibration have main technical data items AC DC Ue V 500 380 220 440 220 110V IeA V 2.00 2.60 4.60 0.14 0.27 0.55 The conventional heating current of the limit switch is 16A; the rated insulation voltage is 500V; the rated operating voltage (Uc) and rated operating current (Ie), direct control 5.5Kw three-phase squirrel-cage type The rated operating voltage for asynchronous motors is below 440V, and the rated operating current is 12A