Description
Product Name: CR308E123BAA GE Central control module
Product details:
The GE CR308E123BAA is a heavy-duty, full-voltage NEMA Size 3 Magnetic Combination Motor Starter from General Electric’s reliable 300-Line series. This industrial-grade unit combines a high-performance magnetic starter/contactor, a 3-leg block overload relay, and a built-in disconnect switch within a protective enclosure. It is designed for safe, single-step, full-voltage starting, stopping, and thermal overload protection of three-phase AC induction motors.
2. Technical Specifications
| Parameter | Specification |
| Brand | General Electric (GE) |
| Series | 300-Line Controls |
| Model Number | CR308E123BAA (CR308E1**AAA variants) |
| NEMA Size | Size 3 |
| Number of Poles | 3-Pole (3-Phase) |
| Continuous Ampere Rating | 90 Amps |
| Maximum Voltage Rating | 600 V AC |
| Coil Voltage | 115V – 120V AC (60Hz) |
| Motor Horsepower (HP) Rating | Up to 50 HP @ 460V/575V AC |
| Disconnect Type | Fused / Non-Fused Combination Switch |
| Overload Protection | 3-Leg Thermal Block Overload Relay |
| Reset Type | Manual |
3. Product Advantages
- All-in-One Combination Design: Integrates motor control, short-circuit protection, and overload shielding into a single enclosure, optimizing space and reducing wiring complexity.
- Encapsulated Coil Construction: The 120V AC coil is thoroughly molded to resist moisture, dirt, oil, and mechanical vibration, ensuring an extended operating lifespan.
- Mechanical Safety Interlock: The enclosure handle is mechanically linked to the door. This safety feature prevents operators from opening the panel door while the disconnect switch is in the “ON” position.
- Front-Accessible Maintenance: Stationary and movable contact tips, along with the coil, can be fully inspected or replaced directly from the front without completely removing the starter from its mounting.
- Rugged NEMA Reliability: Built to strict NEMA compliance standards, making it highly durable for harsh industrial environments compared to lighter IEC-rated alternatives.
4. Key Applications
The CR308E123BAA starter is primarily deployed in demanding commercial and industrial motor control centers (MCCs) to operate:
- Industrial Pumps & Compressors: High-capacity water treatment pumps, air compressors, and fluid management systems.
- HVAC Systems: Large-scale commercial ventilation fans, blowers, and industrial chillers.
- Conveyor & Material Handling: Heavy conveyor belts, sorting mechanisms, and bulk material packaging machinery.
- Manufacturing Machinery: Machine tools, mixers, mills, and large assembly line drives requiring 50 HP motor loads.
5. Important Safety & Maintenance Precautions
⚠️ CRITICAL SAFETY WARNING: Always isolate and lock out all upstream electrical power supplies before performing installation, inspection, or maintenance on this equipment.
- Contact Tip Maintenance: The silver-alloy contacts are engineered to self-clean during operation. DO NOT file or dress the contact tips, as doing so removes crucial silver material and significantly shortens the contactor’s life. Replace them only when the silver tip wears down completely to the base metal.
- Lubrication Restriction: DO NOT oil or grease the magnet mating surfaces or any moving armatures. Lubricants attract industrial dust and grit, which can cause the mechanism to bind or stick open.
- Heater Selection: Thermal overload protection relies heavily on the proper installation of heater elements (e.g., 123F series). Ensure the chosen heaters correspond precisely to the connected motor’s actual Full Load Amps (FLA) listed on its nameplate.
- Proper Grounding: Ensure the rigid metal enclosure is securely grounded to the system earth grounding bar to prevent potential shock hazards.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: United States
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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