Current Sensing Relay Wiring Diagram Learn how to wire a current sensing relay with a useful diagram. understand the connections and functionality of this important electrical device. Close the main relay contacts in overcurrent circuit and pass sufficient dc current through the trip circuit to close the contacts of the ics. this value of current should be not greater than the particular ics setting being used.
Current Sensing Relay Wiring Diagram These ac current sensors can be used to monitor fans, pumps, motor operation and failure, conveyor belt, bearing loss, and other electrical loads. the current sensor requires no external power supply since internal electronics are powered by the ac line induction being monitored with an output limited voltage clamp <12v dc. Please refer to the diagrams below for information on installing & wiring this unit. figure 1. wiring diagrams. adjust the pick up setting between the min & max values of the monitored current range of the unit. the drop out setting is fixed at 95% of the pick up setting. the led is green when input voltage is applied. Always disconnect power before working on the current sensing relay or its connected load. follow all local electrical and safety codes, the national electrical code (nec), and osha requirements. load must not exceed recommended ratings. (see specifications) load must be wired in series with relay. This document provides installation instructions for current sensing relays models 50 and 51. it describes how to install the relays by wrapping the common wire from a furnace blower motor around the metal bracket of the relay.
Current Sensing Relay Wiring Diagram Always disconnect power before working on the current sensing relay or its connected load. follow all local electrical and safety codes, the national electrical code (nec), and osha requirements. load must not exceed recommended ratings. (see specifications) load must be wired in series with relay. This document provides installation instructions for current sensing relays models 50 and 51. it describes how to install the relays by wrapping the common wire from a furnace blower motor around the metal bracket of the relay. This section introduces two basic techniques for current sensing applications, low side current sensing and high side current sensing. each technique has its own advantages and disadvantages, discussed in more detail in the following topics. The 32001754 001 current sensing relay is used with 120 vac or 230 vac blower motors or 230 vac heat pumps and electric furnaces. the relay provides a convenient means of detecting blower activation and then energizing accessory equipment such as a humidifier. There should be a legend around the wiring diagram to see you what each color means. for example, the diagram should show the right direction in the bad and the good terminals of each component. Learn about the wiring of current relays and how they are used in electrical systems to protect against overcurrent and short circuits.
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