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Download MPU-32 Datasheet
... Prevents catastrophic failures and fires; extends motor life Prevents motor damage by detecting mechanical jams or excessive loading Detects low level or no-load conditions Overtemperature (PTC) protection for high-ambient or loss-of-ventilation detection Limits the motor starts per hour to prevent ...
... Prevents catastrophic failures and fires; extends motor life Prevents motor damage by detecting mechanical jams or excessive loading Detects low level or no-load conditions Overtemperature (PTC) protection for high-ambient or loss-of-ventilation detection Limits the motor starts per hour to prevent ...
The Wahleach Hydroelectric Development
... office in Vancouver, a distance of 72 miles. A transmission line, the first of its kind on the North American continent, is associated with this development, but designed for later extension to the company's Bridge River Plant, approximately 110 miles to the north. This line is designed for 345-kv o ...
... office in Vancouver, a distance of 72 miles. A transmission line, the first of its kind on the North American continent, is associated with this development, but designed for later extension to the company's Bridge River Plant, approximately 110 miles to the north. This line is designed for 345-kv o ...
Pepperl+Fuchs offers a wide range of float switches
... isolated barrier (i.e. KFD2-SR...) - mercury-free switching element - usable as a contact output - connects directly to a PLC input, no interface is necessary - contact 250 VAC/VDC, 3 A maximum switching current ...
... isolated barrier (i.e. KFD2-SR...) - mercury-free switching element - usable as a contact output - connects directly to a PLC input, no interface is necessary - contact 250 VAC/VDC, 3 A maximum switching current ...
02025
... vacuum. The number of operations is still typically on the order of 10,000. However, there is usually a currentlimiting resistor in series with the test unit, so the amount of current flowing though the device is negligible. c) switching with load current: The contacts are opened and closed with ac ...
... vacuum. The number of operations is still typically on the order of 10,000. However, there is usually a currentlimiting resistor in series with the test unit, so the amount of current flowing though the device is negligible. c) switching with load current: The contacts are opened and closed with ac ...
D_LKAT2_revA
... Optional LKAT2 “Protection Extensions”, (PE), provides additional functionality for protecting high current rectifiers. Second Freely Scalable Analog Output : This second analog output is independently scaled and fully isolated from the standard LKAT2 measurement output. In typical applications, it ...
... Optional LKAT2 “Protection Extensions”, (PE), provides additional functionality for protecting high current rectifiers. Second Freely Scalable Analog Output : This second analog output is independently scaled and fully isolated from the standard LKAT2 measurement output. In typical applications, it ...
precautions in the application of reed switches
... controllers, timers and telemeter systems. In addition they are suitable for control of small relays and solidstate relays. Reed switches are not suitable for control of inductive loads such as electric motors, (even very small DC motors). They are also not suitable for control of high wattage conta ...
... controllers, timers and telemeter systems. In addition they are suitable for control of small relays and solidstate relays. Reed switches are not suitable for control of inductive loads such as electric motors, (even very small DC motors). They are also not suitable for control of high wattage conta ...
- CONTACTORS FOR AEROSPACE GROW
... Current spikes and arcing can damage both contactors and connected devices. Designers have devised various methods over the years to help protect the contactors and connected circuits. Protection can include external elements such as shunting resistors, diodes, and transorbs. Today, transient protec ...
... Current spikes and arcing can damage both contactors and connected devices. Designers have devised various methods over the years to help protect the contactors and connected circuits. Protection can include external elements such as shunting resistors, diodes, and transorbs. Today, transient protec ...
multiple input and output modules 500 series
... supervised monitoring of wiring to load devices that require an external power supply or amplifier to operate, such as horns, strobes, speakers or bells. Upon command from the control panel, the SC-6 will disconnect the supervision and connect the external power supply across the load device. The fi ...
... supervised monitoring of wiring to load devices that require an external power supply or amplifier to operate, such as horns, strobes, speakers or bells. Upon command from the control panel, the SC-6 will disconnect the supervision and connect the external power supply across the load device. The fi ...
Relay
![](https://commons.wikimedia.org/wiki/Special:FilePath/Relay.jpg?width=300)
A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called ""protective relays"".