

Electrical harness designed to connect the pump assembly to the control system in Graco Therm-O-Flow units, enabling reliable reed switch feedback for accurate pump monitoring and operation control.
| Graco System / Series | Application Area | Compatibility Role |
|---|---|---|
| Graco Therm-O-Flow Control Modules | Hot melt / industrial fluid handling systems | Electrical harness connection between pump and control logic |
| MzLP1 Electrical Control Assemblies | Multi-zone industrial pump systems | Integrates reed switch feedback for pump monitoring |
| TOF (Therm-O-Flow) Series Units | Adhesive and sealant dispensing systems | Signal transmission harness for pump operation control |
| Graco Industrial Pump Enclosures | Automated production line dispensing systems | Provides wiring interface for pump position sensing |
The Graco 17A555 Harness, Pump, Reed Sw, Tof is an OEM electrical wiring harness designed for Graco Therm-O-Flow (TOF) and related industrial fluid handling systems. It plays a critical role in connecting the pump assembly to the system’s electronic control module, ensuring accurate communication between the pump and controller.
This harness specifically incorporates a reed switch interface, which is used to detect pump movement or position. This feedback allows the control system to monitor pump operation, improve accuracy, and maintain safe and efficient dispensing performance in automated environments.
Manufactured to Graco’s industrial standards, the 17A555 harness is engineered for reliability in high-duty-cycle production environments where consistent electrical signaling is essential for system uptime and process stability.
The 17A555 Harness is a dedicated electrical component used in Graco industrial pump systems. It serves as a communication and signal transmission cable assembly between the pump mechanism and the system controller.
Its primary function is to support the reed switch-based pump monitoring system, which helps detect pump cycles and operational status. This makes it an essential part of automated fluid dispensing systems where precision and feedback control are required.