Heat stroke switch NHG1
High temperature resistant switch inside the full closed contact switch, a group of normally open a group of normally closed maximum allowable current 220V 5A/AC (other voltage acceptance), contact after special treatment can be used in high temperature environment for long time without oxidation or pollution and lead to damage. In order to meet customer demand for high temperature, high temperature switch, I have developed a series of NHG series high temperature switch, NHG series high temperature travel switch maximum temperature of 550 degrees, which can be divided into roller arm type, adjustable rod type, pressure plunger and roller pressure column type, etc. more than 10 kinds of specifications, can meet the requirements of different occasions. Widely used in electric power, chemical, petroleum, textile, steel and other industries.
NHG1 high temperature switch for cylindrical type, through the impact of high temperature switch of the cylinder type, so that the high temperature of the trip switch cylinder to move down, so that the switch of the contact action and achieve the switch, so as to achieve the purpose of the collision switch.
Open hole size and outline dimension ：
The highest temperature environment 550 degree double loop type limit switch, a wide range of uses with strong one casting aluminum alloy shell, high mechanical strength with oil resistant, waterproof and anti pressure structure with setting position is installed in the dashboard, so it is easy to maintain many kinds of actuator, the easy to use built-in contacts a double spring design, mechanical life long
Characteristics
Operation speed , 1mm to 2m/S Action frequency Mechanically:120 times/minute Electically:30 times/Minute Contact resistance Under 15mΩ(initial) Insulation resistance 100mΩ above (at 500VDC) Bearing voltage Non-contact end:1,000VAC,50/60Hz for one minute Current parts and noncurrent parts and end and connect position :2,200VAC,50/60Hz for one minute Vibration Action:10 to 55Hz,1.5mm pairs swing Machine:1,000m/Sec2(about 100G,S) Action:300m/Sec2(about 30G,S) Ambient temperature :-10 +550℃ Humidity Max 95% Serve life Mechanically:15,000,000 times above(at rated ot) Electrically:500,000 times above Weight (NHG1) , About 396g Protection structure IEC specification:IP65 1. The power factor of the inductive load is above 0.4 (AC), and the time constant is below 7msec (DC).2. Current bulb carry is 10 times of steady state current, inrush current of motor load is 6 times of steady current
Heat stroke switch - note.
Heat stroke switch in use should pay attention to the problem (1) in the installation of high temperature travel switch, to check whether the iron in the walking in place of the impact of travel switch head, must not be a collision in the middle or other parts of the trip switch. (2) in the installation or in were examined for resistance to high temperature trip switch to fix it firmly, and with slide hand or dynamic pressure high temperature limit switch action head, listen carefully, check whether there is the sound of "bang", if there is no should be open resistance to high temperature limit switch, regulation connecting the micro switch and the movement axis of the screw.
