Description
Technical Specifications
- Product Model: CR305E004
- Brand: GE
- Warranty: One Year
- Input Voltage: 480 VAC 50/60 Hz control coil
- Operating Temperature: -20°C ~ +60°C
- Storage Temperature: -40°C ~ +85°C
- Response Time: <15 ms contact actuation
- Protection Class: Open frame, IP20 cabinet installation
- Rated Operational Accuracy: Consistent contact performance within rated electrical load
- Output Frequency: 50 / 60 Hz
- Rated Current Range: 90 A continuous, NEMA Size 3, 3-pole main contacts
- Communication Interface: Hardwired discrete control wiring
- Supported Protocols: Direct hardwire control; compatible with PLC relay outputs
- Overload Capacity: 10x rated current for short-duration motor inrush
- Dimensions: 224 mm × 168 mm × 190 mm
Product Overview
The GE CR305E004 is a non-reversing three-pole NEMA Size 3 magnetic contactor built for switching high-power AC induction motors and heavy industrial loads. This electromechanical switching device establishes and interrupts three-phase power circuits based on control signal commands from PLCs, relays or operator control stations. It mitigates premature contact burnout caused by motor startup inrush currents and offers reliable load switching for continuous industrial duty cycles. Plant electricians, automation integrators and machinery OEMs rely on this contactor’s robust contact assembly and built-in auxiliary contacts for interlock and status feedback. Standard UL and cUL certification ensures compliance with North American electrical standards, and the open-frame design simplifies visual inspection and routine maintenance inside motor control centers.
Application Scenarios
- Manufacturing Motor Control Centers: Used to control large conveyor motors, fans and pumps within central MCC cabinets. Handles high inrush current during motor startup and provides auxiliary contact feedback for PLC status monitoring.
- HVAC & Facility Air Handling Systems: Switches large industrial air handler and chiller drive motors. Stable load switching minimizes voltage fluctuations within building electrical distribution networks.
- Water & Wastewater Treatment Plants: Controls main process pumps, aerators and sludge handling equipment. Continuous-duty construction supports 24/7 unattended plant operation.
- Legacy Industrial Equipment Retrofit: Acts as a direct OEM replacement for existing CR305 series contactors. Matching mounting footprint and terminal layout reduces cabinet modification downtime during overhaul.
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