Siemens 1NO 1NC Contact Limit Switch 3SE3020-1A
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Normal position normally open (no), normally closed (nc) brand siemens the movable switch contacts are double moving contacts and increases the contact reliability. Additional cable entry options and corrosion resistant housing. Nine field interchangeable operating heads (12 variations). Field replaceable, electrically isolated, double bridge contacts. Provides electrical flexibility and ease of maintenance. Direct opening action (positive opening) of the nc contact. Position switch,open type with normal stroke snap-action contacts 1no+1nc , 3se3020-1a
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Magnetic pickups (MPUs) are speed sensors that detect the speed of a prime mover, typically an engine or turbine. They are the communication link between your engine and a Woodward electronic governor control. The MPU is installed next to a drive shaft gear made of a material that reacts to a magnetic field. As each gear tooth passes the MPU, the gear interrupts the MPU's magnetic field, and an alternating voltage is developed. The frequency of this voltage is translated by the speed control into a signal that accurately depicts the speed of the prime mover. Woodward’s magnetic pickups can be used with most electronic speed controls. Models are available for hazardous location installation.
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