Closing the Circuit Breaker

@experts: Topic shared between DOCA0284, DOCA0285 and DOCA0266; indicate if comments do not apply to both guides

Closing Conditions

To close the circuit breaker, the following conditions must be met:

Circuit breaker is open (O).
Closing spring is charged.
The circuit breaker is ready to close, OK is displayed.

NOTE: An opening order always takes priority over a closing order. The circuit breaker cannot be closed while an opening order is being received. If OK is crossed-out on the ready-to-close indicator, an order to open is being received (either electrically or mechanically) and must be ended before OK can be displayed.

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Do not re-close the circuit breaker on an electrical fault. First inspect and, if necessary, repair the downstream equipment. Failure to follow these instructions will result in death or serious injury.

Closing the Circuit Breaker

The following tables present the different ways to close the circuit breaker in the different control modes available.

The circuit breaker can be closed in the following ways in all control modes:

Closing type	Accessories	Closing action
Mechanical	–	Press the closing pushbutton on the front of the circuit breaker. The closing action is possible when the closing conditions are met.
External pushbutton	External pushbutton wired by customer XF closing voltage release MCH gear motor	Press the external pushbutton, which is connected to the XF closing voltage release through the customer terminal block.

Closing type

Accessories

Closing action

Mechanical

–

Press the closing pushbutton on the front of the circuit breaker.

The closing action is possible when the closing conditions are met.

External pushbutton

External pushbutton wired by customer
XF closing voltage release
MCH gear motor

Press the external pushbutton, which is connected to the XF closing voltage release through the customer terminal block.

Additionally, the circuit breaker can be closed in the following ways when Auto Local or Auto Remote control mode is configured.

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Do not operate the circuit breaker without confirming that doing so will not create a hazardous situation. Do not allow any person to work on the electrical network without physically validating the successful execution of the local or remote software actions for closing the circuit breaker or switching on the electrical circuit. Failure to follow these instructions will result in death or serious injury.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

Do not operate the circuit breaker without confirming that doing so will not create a hazardous situation.
Do not allow any person to work on the electrical network without physically validating the successful execution of the local or remote software actions for closing the circuit breaker or switching on the electrical circuit.

Failure to follow these instructions will result in death or serious injury.

Closing type	Control mode	Accessories	Closing action
Through FDM121 display	Auto Local	BCIM module XF communicating closing voltage release MCH gear motor ULP port module	Send a command to close the circuit breaker from FDM121 display connected locally to the circuit breaker through the ULP system. This closing action is only allowed when Auto Local is configured.
Through Modbus communication	Auto Remote	BCIM module XF communicating closing voltage release MCH gear motor ULP port module IFE, EIFE, or IFM interface, or IFE server	Send a command to close the circuit breaker through the Modbus communication network. This closing action is only allowed when Auto Remote control mode is configured. Refer to DOCA0384•• MasterPacT, ComPacT, PowerPacT Circuit Breakers - Modbus Communication - User Guide in Related Documents at the beginning of this guide.
Through IFE/EIFE webpages	Auto Remote	BCIM module XF communicating closing voltage release MCH gear motor ULP port module IFE or EIFE interface, or IFE server	Send a command to close the circuit breaker from the IFE/EIFE control webpage. This closing action is only allowed when Auto Remote control mode is configured. Refer to the relevant document in Related Documents at the beginning of this guide: DOCA0084•• Enerlin'X IFE - Ethernet Switchboard Server - User Guide DOCA0142•• Enerlin'X IFE - Ethernet Interface for One Circuit Breaker - User Guide DOCA0106•• Enerlin'X EIFE - Embedded Ethernet Interface for One MasterPacT MTZ Drawout Circuit Breaker - User Guide

Closing type

Control mode

Accessories

Closing action

Through FDM121 display

Auto Local

BCIM module
XF communicating closing voltage release
MCH gear motor
ULP port module

Send a command to close the circuit breaker from FDM121 display connected locally to the circuit breaker through the ULP system.

This closing action is only allowed when Auto Local is configured.

Through Modbus communication

Auto Remote

BCIM module
XF communicating closing voltage release
MCH gear motor
ULP port module
IFE, EIFE, or IFM interface, or IFE server

Send a command to close the circuit breaker through the Modbus communication network.

This closing action is only allowed when Auto Remote control mode is configured.

Refer to DOCA0384•• MasterPacT, ComPacT, PowerPacT Circuit Breakers - Modbus Communication - User Guide in Related Documents at the beginning of this guide.

Through IFE/EIFE webpages

Auto Remote

BCIM module
XF communicating closing voltage release
MCH gear motor
ULP port module
IFE or EIFE interface, or IFE server

Send a command to close the circuit breaker from the IFE/EIFE control webpage.

This closing action is only allowed when Auto Remote control mode is configured.

Refer to the relevant document in Related Documents at the beginning of this guide:

DOCA0084•• Enerlin'X IFE - Ethernet Switchboard Server - User Guide
DOCA0142•• Enerlin'X IFE - Ethernet Interface for One Circuit Breaker - User Guide
DOCA0106•• Enerlin'X EIFE - Embedded Ethernet Interface for One MasterPacT MTZ Drawout Circuit Breaker - User Guide

If the device does not open, refer to MasterPacT MTZ Troubleshooting.