Overview of Masterpact MTZ Accessories
Masterpact MTZ Accessories Availability
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Indicates Drawout Circuit Breaker |
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Indicates Fixed Circuit Breaker |
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Masterpact MTZ Circuit Breaker Accessories |
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Accessory |
Circuit Breaker |
Version |
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Fixed |
Drawout |
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Design and Installation - Connection > See Masterpact MTZ Connections |
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Horizontal and vertical rear connection |
MTZ1/2/3 |
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Front connection |
MTZ1/2/3 |
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Vertical-connection adapters |
MTZ1 |
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Cable-lug adapters |
MTZ1 |
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Spreaders |
MTZ1 |
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Disconnectable front connection adapter |
MTZ2/3 |
— |
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Lugs for 240 mm2 or 300 mm2 cables |
MTZ1 |
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Interphase barriers |
MTZ1/2/3 |
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Arc chute cover (CC) |
MTZ1 |
— |
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Brackets for mounting |
MTZ2/3 |
— |
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Operation Efficiency - Signalling > See Masterpact MTZ Signalling Accessories |
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ON/OFF indication contacts (OF) |
MTZ1/2/3 |
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Fault-trip indication contact (SDE) |
MTZ1/2/3 |
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Combined connected/closed contacts (EF) |
MTZ2/3 |
— |
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Cradle switches (CE, CD, CT) |
MTZ1/2/3 |
— |
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Ready-to-close contact (PF) |
MTZ1/2/3 |
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ERMS switch module (ESM) |
MTZ1/2/3 |
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Mechanical operation counter (CDM) |
MTZ1/2/3 |
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Operation Efficiency - Controlling > See Masterpact MTZ Controlling Accessories |
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Diagnostic and communicating shunt close (XF diag&com) |
MTZ1/2/3 |
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Shunt close (XF) |
MTZ1/2/3 |
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Diagnostic and communicating shunt trip (MX diag&com) |
MTZ1/2/3 |
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Shunt trip (MX) |
MTZ1/2/3 |
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Diagnostic undervoltage release (MN diag) |
MTZ1/2/3 |
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Undervoltage release (MN) |
MTZ1/2/3 |
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Non-adjustable delay unit (R) |
MTZ1/2/3 |
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Adjustable delay unit (Rr) |
MTZ1/2/3 |
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Isolation module |
MTZ1/2/3 |
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Spring charging motor (MCH) |
MTZ1/2/3 |
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Electrical reset option (RES) |
MTZ1/2/3 |
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Automatic reset option (RAR) |
MTZ1/2/3 |
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Electrical closing pushbutton (BPFE) |
MTZ1/2/3 |
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People and Property Protection - Locking and Interlocking > See Masterpact MTZ Locking and Interlocking Accessories |
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ON/OFF pushbutton locking (VBP) |
MTZ1/2/3 |
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OFF position locking (VSPO-VCPO) |
MTZ1/2/3 |
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Cradle locking in disconnected position by padlock |
MTZ1/2/3 |
— |
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Cradle locking in disconnected position: by keylock (VSPD) |
MTZ1/2/3 |
— |
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Optional connected/disconnected/test position locking |
MTZ1/2/3 |
— |
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Safety shutters (VO) |
MTZ1/2/3 |
— |
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Shutter position indication and locking (VIVC) |
MTZ2/3 |
— |
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Cable-type door interlock (IPA) |
MTZ1/2/3 |
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Door interlock (VPEC) |
MTZ1/2/3 |
— |
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Racking interlock (VPOC) |
MTZ1/2/3 |
— |
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Racking interlock between crank and OFF pushbutton (IBPO) |
MTZ2/3 |
— |
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Cradle rejection kit |
MTZ1/2/3 |
— |
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People and Property Protection - Circuit Protection > See Masterpact MTZ Circuit Protection Accessories |
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External sensor for ground-fault protection (ENCT) |
MTZ1/2/3 |
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External sensor for source ground-return (SGR) protection |
MTZ1/2/3 |
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People and Property Protection - Operation Protection > See Masterpact MTZ Operation and Mechanical Protection Accessories |
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Automatic spring discharge before circuit breaker removal (DAE) |
MTZ2/3 |
— |
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Grounding kit (KMT) |
MTZ2/3 |
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People and Property Protection - Mechanical Protection > See Masterpact MTZ Operation and Mechanical Protection Accessories |
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Terminal cover (CB) |
MTZ1/2/3 |
— |
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Escutcheon (CDP) |
MTZ1/2/3 |
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Blanking plate for escutcheon (OP) |
MTZ1/2/3 |
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Transparent cover for escutcheon (CP) |
MTZ1/2/3 |
— |
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Power Availability and Reliability - Power Supplies > See Masterpact MTZ Power Supply Accessories |
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Voltage power supply (VPS) |
MTZ1/2/3 |
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External 24 Vdc power supply module (AD) |
MTZ1/2/3 |
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Battery module (BAT) |
MTZ1/2/3 |
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Mobile Power Pack by APC |
MTZ1/2/3 |
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Spare internal battery |
MTZ1/2/3 |
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Masterpact MTZ Circuit Breaker Mounting Versions
Masterpact circuit breakers are available in fixed and drawout versions.
The drawout version is preferred in most applications due to its following benefits:
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Visible separation of the power contacts by racking the device out.
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Convenient and complete access to the device for periodic maintenance.
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Easy device removal and replacement.