The Greenheck 309133 is a NEMA Size 4 Overload Relay engineered to deliver dependable motor protection for commercial and industrial ventilation equipment. Designed as a genuine Greenheck replacement component, this overload relay integrates seamlessly with NEMA Size 4 motor starters and control assemblies commonly found in Greenheck fan and ventilation systems.
Product Overview
Overload relays are a critical line of defense for motor circuits, automatically interrupting power when current draw exceeds safe operating thresholds. The Greenheck 309133 is sized to match NEMA Size 4 motor starter configurations, making it the correct OEM-specified replacement for compatible Greenheck commercial ventilation units. Using the correct OEM part ensures proper trip characteristics, reliable reset performance, and continued system protection.
Key Features
- Genuine Greenheck OEM replacement overload relay
- NEMA Size 4 configuration for compatibility with corresponding motor starters
- Protects motors from overload, phase loss, and sustained overcurrent conditions
- Designed for commercial and industrial HVAC fan and ventilation applications
- Ensures proper trip curve characteristics for reliable motor protection
- Direct OEM replacement for simplified installation and serviceability
Application
This overload relay is intended for use in Greenheck commercial ventilation systems utilizing NEMA Size 4 motor starter assemblies. It is suitable for replacement and maintenance applications in rooftop fans, exhaust fans, supply fans, and other Greenheck motor-driven ventilation equipment.
Why Choose OEM Greenheck Parts?
Using genuine Greenheck replacement components ensures your ventilation system operates within original design specifications. OEM parts maintain warranty compliance, reduce troubleshooting time, and provide the exact fit and function required for safe, long-term operation.
