3VA2_ETU8 / 3VA2_ETU5
The 3VA series is designed for use in applications with higher technical requirements and a rated current of up to 630 A. In addition to an increased switching capacity of up to 150 kA, these MCCBs come with an electronic trip unit (ETU), and an integration capability for metering and communication functions.
The current-limiting contact system furthermore ensures a very high switching capacity. ETUs guarantee reliable overload protection, short-term delayed or instantaneous tripping in case of a short-circuit, neutral conductor protection, and fault protection against ground.
Mobile test devices allow the checking and parameterization of ETU functions in MCCBs on site.
State symbols of the molded-case circuit breaker
Different states of the molded-case circuit breaker are represented as a circuit-breaker symbol. The state symbol of the molded-case circuit breaker indicates the position of the molded-case circuit breaker in the frame. You can see whether the molded-case circuit breaker is open or closed. The background color designates the status of the relevant message.
Color | Message status | Meaning |
Green | Green | No messages pending |
Yellow | Yellow | At least one warning message or one threshold warning is pending |
Red | Red | At least one trip message is currently pending |
White | White | No information available about the existence of messages |
State Symbol without Guide Frame | State Symbol with Guide Frame | Description of the State |
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| The circuit breaker is not available. NOTE: At the moment, neither tripping nor warning or setpoint messages are pending. |
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| The circuit breaker is not available. NOTE: At the moment, at least one warning or setpoint message is pending. |
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| The circuit breaker is not available. NOTE: At the moment, a tripping message is pending. |
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| The circuit breaker is opened. At the moment, neither tripping nor warning or setpoint messages are present. |
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| The circuit breaker is opened. At the moment, a tripping message is present. |
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| The circuit breaker is opened. At the moment, at least one warning or setpoint message is present. |
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| The circuit breaker is opened. At the moment, neither tripping nor warning or setpoint messages are present. |
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| The circuit breaker is opened. At the moment, a tripping message is present. |
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| The circuit breaker is opened. At the moment, at least one warning or setpoint message is present. |
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| The circuit breaker is in the disconnected position. |
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| The circuit breaker is in disconnected position. The circuit breaker is closed. At the moment there are neither tripping nor warning or setpoint messages present. |
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| The circuit breaker is in disconnected position. The circuit breaker is closed. At the moment a tripping message is present. |
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| The circuit breaker is in disconnected position. The circuit breaker is closed. At the moment, at least one warning or setpoint message is present. |
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| The circuit breaker is in disconnected position. The circuit breaker is opened. At the moment, neither tripping nor warning or setpoint messages are present. |
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| The circuit breaker is in disconnected position. The circuit breaker is opened. At the moment, a tripping message is present. |
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| The circuit breaker is in disconnected position. The circuit breaker is opened. At the moment, is at least one warning or setpoint message is present. |
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| The circuit breaker is closed. At the moment, neither tripping nor warning or setpoint messages are present. |
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| The circuit breaker is closed. At the moment, a tripping message is present. |
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| The circuit breaker is closed. At the moment, at least one warning or setpoint message is present. |
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| The circuit breaker is in test position and is closed. At the moment, neither tripping nor warning or setpoint messages are present. |
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| The circuit breaker is closed. At the moment, a tripping message is present. |
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| The circuit breaker is closed. At the moment, at least one warning or setpoint message is present. |
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| It is unknown, if the circuit breaker is closed or opened. At the moment, a tripping message is present. |
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| It is unknown, if the circuit breaker is closed or opened. At the moment, at least one warning or setpoint message is present. |
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| It is unknown, if the circuit breaker is closed or opened. At the moment, neither tripping nor warning or setpoint messages are present. |
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| It is unknown, if the circuit breaker is closed or opened. At the moment, a tripping message is present. |
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| It is unknown, if the circuit breaker is closed or opened. At the moment, a tripping message is present. |
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| It is unknown, if the circuit breaker is closed or opened. At the moment, at least one warning or setpoint message is present. |
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| The circuit breaker is in test position and has tripped. At the moment, neither tripping nor warning or setpoint messages are present. |
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| The circuit breaker is in test position and has tripped. At the moment a tripping message is present. |
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| The circuit breaker has tripped. At the moment, at least one warning or setpoint message is present. |
offline | offline | The circuit breaker is in test position and has tripped. At the moment, at least one warning or setpoint message is present. |
Condition Monitoring
Displays the health status and the remaining lifetime of the breaker.
This feature is available for devices with firmware version V4.4 or above.
