Description
GE CR307DT04TH1AASJA
Technical Specifications
- Product Type: Motor Starter / Contactor Assembly.
- Series: GE CR307.
- Horsepower Rating: Sized for specific motor HP/kW ratings.
- Voltage: Rated for standard industrial AC voltages.
Functional Features
- Integrated Overload Protection: Built-in thermal overload relay for motor protection.
- Auxiliary Contacts: Provides auxiliary contacts for control circuit interlocking.
- Manual/Auto Reset: Configurable overload reset options.
Application Scenarios
- Motor Control Centers: Individual motor starters in MCCs.
- Machine Control: Local motor control for pumps, fans, and compressors.
- HVAC Systems: Controlling large fans and chillers.
Performance Parameters
- Contact Life: High electrical and mechanical endurance.
- Overload Range: Adjustable overload relay trip range.
Material Composition
- Enclosure: NEMA-rated enclosure (open or enclosed).
- Internals: Industrial-grade contactor and overload components.
Structural Characteristics
- Design: Compact, space-saving design.
- Wiring: Pre-wired or modular wiring options.
Working Principle
The contactor closes to apply power to the motor. The integrated overload relay continuously monitors motor current; if an overload condition persists, it trips the contactor to disconnect power and protect the motor.
Installation Requirements
- Size the starter correctly for the motor FLA.
- Set the overload relay to the motor’s full load amps.
Usage Precautions
- Allow the motor to cool before resetting a tripped overload.
- Inspect contacts and overload heaters during preventive maintenance.
