"> Eaton Marine PKZ2-ZM-25 Marine 440V Marine
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Eaton Marine

PKZ2-ZM-25 Marine 440V Marine

Eaton Marine PKZ2-ZM-25 Marine 440V Marine is a shipboard unit in the Motor Control group, classified in the source as Motor Protection Switch. It is normally installed in motor-control centers, switchboards or local starter panels near the driven machinery. Its primary duty is to start, stop and protect electric motors from abnormal electrical conditions. In service it interfaces with incoming supply, motor feeder, contactors, overload/protection devices, local controls and remote automation interlocks. Compared with neighboring entries in the same product family, this record is the exact Eaton Marine PKZ2-ZM-25 Marine 440V Marine variant; the model designation should be retained unchanged when matching onboard documentation and spares. For exact limits, settings, test values and approved maintenance criteria, refer to the manufacturer documentation for the exact figure.

Components & Design

Component data being added…

Technical Data

motor power kw 5
breaking capacity ka 50
protection class IP55

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Common failures & inspection points

Contactor contact wear or coil failure, typically indicated by motor fails to start, chatters or contacts overheat
Overload/protection device malfunction or incorrect setting, typically indicated by nuisance trips or inadequate motor protection
Loose power terminals, typically indicated by heating, discoloration or voltage drop
Control-circuit fuse, relay or wiring fault, typically indicated by no start command response or intermittent operation
Enclosure contamination/moisture, typically indicated by tracking, earth faults or corrosion

Service & Maintenance

Inspect contactors, protection settings, terminals, control wiring, enclosure condition and interlocks; verify motor current and protective operation under approved testing procedures.

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Replacement Parts

Carry contactor coils/assemblies, overload relays or protection modules, fuses, auxiliary contacts, pushbuttons and control relays.
Equipment Model #92574 · ✓ still in production