2 Year Warranty Guaranteed
All items both Re-Certified, and New sold by Essential Electric include a 30 day return policy and a 2-year full warranty. This means that they are guaranteed to be free from defects for a full 2 years from the date that the product was shipped from our warehouse.
Product Questions? Contact Us
Description
CN55KN3B
The Eaton CN55KN3B is a rugged NEMA Size 5 reversing contactor from the Freedom Series, designed for high‑horsepower motor control and direction reversal in industrial power systems. This heavy‑duty contactor features a 270 amp rating with a 3‑pole, 3‑phase open configuration and a 240 V AC coil (208 V AC at 50 Hz). Its reversing mechanism includes mechanical and electrical interlocks to ensure reliable forward/reverse switching, making it ideal for conveyor drives, hoists, cranes and other demanding reversing applications. Built with Eaton’s Freedom Series electromechanical contactors, the CN55KN3B is UL‑listed and CSA‑certified, offering high short‑circuit withstand ratings and long mechanical life. Its open‑style design allows for easy installation, inspection, and maintenance in motor control centers and switchgear. At Essential Parts, we stock the CN55KN3B for fast shipping, competitive pricing, and expert technical support—helping you keep your industrial machinery operating smoothly and safely. Ideal for conveyors, hoists, and process systems, the CN55KN3B offers rugged construction, long electrical life, and straightforward panel integration for OEMs and industrial users. Key Specifications:
- Part Number: CN55KN3B
- Manufacturer: Eaton / Cutler-Hammer
- Series: Freedom Series
- Type: Reversing Contactor
- NEMA Size: 5
- Poles: 3-Pole
- Coil Voltage: 240 VAC (60 Hz) / 220 VAC (50 Hz)
- Mounting: Open Style
- Interlocks: Mechanical and Electrical
- Applications: Forward/reverse motor control, cranes, conveyors, large process loads
Additional Information
This NEMA Reversing Contactor includes a 220 VAC coil.
Specifications
- Part Number: CN55KN3B
- Manufacturer : Eaton
- Brand : Eaton
- Category : Motor Control
- Item Subcategory : Contactor
- Family : Freedom Series
- Type : CN55KN
- Amperage : 90
- Phase : 3
- Configuration : Reversing
- Coil Voltage Maximum : 240
- Coil Voltage Minimum : 220
- Nema Starter Size : 3
- Frequency : 50 Hz
Product Data
- UPC : 78211374347
- GTIN : 00782113743479
- Country of Origin : Dominican Republic
- Dimensions : 5.94 in x 7.17 in x 4.08 in (Length/Depth x Height x Width)
- Weight : 8.5 lb
- Certification : UL Listed CSA Certified
You may also like
- Opens in a new window.



