Circuit Breakers
Description
The page allows you:
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With any role to monitor data from the circuit breaker.
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With Installer or Engineer role to reset minimum and maximum values of the energy and demand measurements.
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With Operator role to control the circuit breaker.
Navigation to the Page
To display the page, click .
Page Layout
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A |
Circuit breaker identification data |
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B |
Circuit breaker health status |
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C |
Circuit breaker monitoring and control panel |
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D |
Monitoring of measurements |
Circuit Breaker Identification Data
The circuit breaker is identified by the following data:
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Rated current
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Protection type
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Number of IO modules connected
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Additional data according to the range of the circuit breaker
Circuit Breaker Health Status
The health status of the MasterPacT MTZ drawout circuit breaker is indicated by one of the following icons:
Circuit Breaker Monitoring and Control Panel

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A |
Drawout circuit breaker position in the cradle |
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B |
Circuit breaker main contact position |
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C |
Circuit breaker control mode and control status |
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D |
Circuit breaker control buttons |
Drawout Circuit Breaker Position in the Cradle
The position of the drawout circuit breaker in the cradle is indicated by the following icons:
Circuit Breaker Main Contact Position
The position of the main contacts of the circuit breaker is indicated by the following icons:
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Icon |
Description |
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The main contacts of the circuit breaker are closed. |
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The main contacts of the circuit breaker are opened. |
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The main contacts of the circuit breaker are opened and the circuit breaker is tripped. The circuit breaker must be reset. |
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The circuit breaker position is unknown in case of contact position discrepancy. |
Circuit Breaker Control Mode
The circuit breaker control mode is:
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: The control buttons on the webpage can be used to control the circuit breaker remotely.
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: The control buttons are not available on the webpage. The circuit breaker is controlled locally through manual operation.
The circuit breaker control status is indicated by the following icons:
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Icon |
Description |
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The closing spring is charged and the circuit breaker is ready to close. |
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The closing spring is charged and the circuit breaker is not ready to close. |
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The closing spring is discharged and the circuit breaker is not ready to close. |
Close inhibition indicates that the circuit breaker closing is inhibited by the EcoStruxure Power Commission software or IO modules or a remote controller through the communication network.
Circuit Breaker Control Buttons
When the circuit breaker is in remote control mode, the following control buttons are available:
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Control Button |
Description |
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Click the button to open the circuit breaker. |
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Click the button to close the circuit breaker. The circuit breaker will close only if it is ready to close. |
For each control action:
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A safety message is displayed in a dialog box.
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Read the message and click to confirm the action.
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Click to cancel the action.
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The result of the action (successful or failed) is displayed in a dialog box.
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Measurements
The list of measurements displayed depends on the type of MicroLogic control unit of the circuit breaker.
Measurement are shown in the following order:
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Real time measurements with minimum and maximum values. For MasterPacT MTZ drawout circuit breaker, the time stamp of the minimum and maximum values is also displayed.
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Energy measurements
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Demand measurements
The minimum and maximum values of the energy and the demand measurements can be reset by users with Installer or Engineer role.














