The GRACO 557752 is a field-sensitive magnetic proximity cycle switch designed for use with MXP and MX divider valves. It is constructed for robust industrial environments and is intended to provide cycle confirmation to pump controllers, independent controllers, or PLCs in automatic lubrication systems.

Key Features:

• Field-sensitive magnetic proximity cycle switch
• 557752, 4-Pin CH Mini
• Industrial-grade, robust for harsh environments
• Up to 8,000 psi (55.2 MPa, 552 bar) working pressure (some sources list up to 10,000 psi, but official manual specifies 8,000 psi)
• MXP and MX Divider Valves
• Field-sensitive magnetic sensing for reliable cycle detection
• Designed for high cycle rates (up to 200 CPM)
• Built to withstand harsh working conditions and high wear-and-tear environments
• Extends equipment life by ensuring proper lubrication cycles
• Easy to integrate with pump controllers, independent controllers, or PLCs

Applications:
Used in automatic lubrication systems for cycle confirmation, suitable for industrial, mining, agricultural, and heavy equipment applications where reliable and robust cycle detection is required.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the automatic lubrication system.
• Ensure proper electrical connection according to the 4-pin CH Mini configuration
• Mount securely to avoid vibration or impact damage
• Follow manufacturer guidelines for wiring and integration with controllers or PLCs
• Regularly inspect for wear and proper function in harsh environments