P&H
Master switch for P&H 5150R
This master switch controls the primary electrical power supply for the P&H 5150R crane. It allows operators to isolate the battery and electrical systems during maintenance or emergency situations.
Compatible models
Specifications
- Part number
- 79Z1691
- Brand
- P&H
The master switch, part number 79Z1691, serves as the primary control point for the electrical power distribution within the crane. By interrupting the main circuit, it enables the operator or maintenance technician to disconnect the electrical supply from the battery to the various machine systems. This isolation is necessary to prevent accidental engine starts, electrical shorts, or potential hazards during service procedures.
This component is specifically designed for integration into the P&H 5150R crane model. It facilitates the manual connection and disconnection of the power supply, ensuring that the machine can be fully de-energized when required. Regular inspection of the electrical terminals and the switching mechanism is recommended to ensure the unit maintains consistent contact and reliable operation within the crane electrical system.
In heavy machinery, a master switch functions as a safety disconnect that manages the flow of current from the battery to the main electrical bus. By providing a clear break in the power path, it protects the electrical architecture of the machine and ensures that the equipment remains in a safe, powered-down state during periods of inactivity or repair.

