Description
GE CR305F000AAD
Technical Specifications
- Product Type: Magnetic Contactor.
- Series: CR305.
- NEMA Size: Size 0 to Size 8 (depending on specific frame configuration).
- Voltage Rating: 600 Volts AC Maximum.
Functional Features
- Motor Starting: Designed for full-voltage starting of AC motors.
- Enclosure Options: Available in Open Type or enclosed variants (Types 1, 3R, 12, and 4/4X).
- Terminal Types: Features pressure box terminals for secure line and load connections.
Application Scenarios
Widely deployed in industrial manufacturing plants, motor control centers (MCCs), and commercial power distribution systems for controlling heavy machinery and motors.
Performance Parameters
- Continuous Current Rating: Rated up to 20 Amps (Open) or 18 Amps (Enclosed) for Size 0 at 600V.
- Short Circuit Rating: Suitable for use on circuits capable of delivering not more than 5,000 RMS symmetrical amperes at 600V maximum when properly protected.
Material Composition
Housed in a durable, flame-retardant molded cover. Internal contacts utilize high-conductivity silver pads designed to withstand extreme arcing temperatures during switching operations.
Structural Characteristics
Standard NEMA form factor with a movable magnet and operating arm. Includes a molded cover, return spring, and stationary/movable contact assemblies.
Working Principle
When the control coil is energized, it generates a magnetic field that pulls the movable armature, closing the main power contacts and allowing current to flow to the load. When de-energized, the return spring forces the contacts open.
Installation Requirements
Must be mounted on a sturdy vertical support. Ensure magnet mating surfaces are completely clean and free of dirt or foreign matter before installation. Electrical connections must comply with the National Electrical Code (NEC).
Usage Precautions
Always disconnect power before installing or servicing. Periodically inspect contacts for welding or excessive wear. Never operate the contactor without proper overload protection.
