84871040 Allicdata Electronics
Allicdata Part #:

84871040-ND

Manufacturer Part#:

84871040

Price: $ 0.00
Product Category:

Industrial Controls

Manufacturer: Crouzet
Short Description: EIT CRNT CTRL RLY 10-100A +CT 24
More Detail: N/A
DataSheet: 84871040 datasheet84871040 Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Series: EIT
Part Status: Obsolete
Type: Current Sensing AC/DC
Trip Status: Energized High
Trip Range: 10 ~ 100A AC
Delay Time: 0.1 Sec ~ 3 Sec
Voltage - Supply: 24VDC
Output Type: Relay
Circuit: SPDT (1 Form C)
Contact Rating @ Voltage: --
Mounting Type: DIN Rail
Operating Temperature: -20°C ~ 60°C
Description

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Monitoring Current & Voltage With Relay Output

  • Introduction
  • Applications of the 84871040 Relay
  • Working Principle
  • Conclusion

Introduction

The 84871040 relay is a high accuracy, solid state AC voltage and current monitor with a built-in relay output. It is used to detect, monitor, and control AC voltages and currents. It is capable of handling a wide range of input voltages from 24 VAC to 480 VAC and currents from 5A to 25A. This relay is a perfect choice for a variety of applications, such as AC power monitoring, power supply over-voltage/under-voltage protection, over-current or short-circuit protection, variable speed drives, AC motor protection, and more.

Applications of the 84871040 Relay

The 84871040 relay can be used for a variety of applications, including:
  • AC Power Monitoring - The 84871040 allows users to monitor AC voltages and currents as well as provide over-voltage, under-voltage and over-current protection.
  • Variable Speed Drives - The 84871040 can be used to monitor AC motor speed and temperature, providing efficient variable speed control.
  • Over-Current/Short-Circuit Protection - The 84871040 provides powerful short-circuit protection, limiting the current of the load and protecting it from overcurrent.
  • Other AC Circuit Control - The 84871040 can also be used as a general-purpose control in AC circuits, providing intelligent switching for a variety of industrial applications.

Working Principle

The 84871040 relay is a solid state device composed of diodes and other semiconductor components. It is designed to monitor voltage and current in an AC circuit. When the input voltage reaches a predefined set point, the relay energizes the internal electromechanical relay. This energizing signal can be used to control other components of the circuit, such as motors, switches, etc.The 84871040 relay has two basic operating modes – normal and standby. In standby mode, the relay monitors the input signal constantly, without energizing the internal electromechanical relay. In normal mode, the relay controls the output when the pre-set voltage or current levels is reached.In addition, the 84871040 is equipped with adjustable time delay, allowing the user to control the frequency of the output relay activation.

Conclusion

The 84871040 relay is a reliable and cost-effective solution for AC voltage and current monitoring, with built-in relay and adjustable time delay features. It is a perfect choice for a variety of applications, such as AC power monitoring, variable speed drives, short-circuit protection, and other AC circuit control.

The specific data is subject to PDF, and the above content is for reference

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