Eaton CE55KN3CB IEC Contactor — 73A, 3-Pole, 600V, Reversing, Frame K
Eaton CE55KN3CB IEC Contactor — 73A, 3-Pole, 600V, Reversing, Frame K
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The Eaton CE55KN3CB is a high-performance, reversing IEC contactor from Eaton's Freedom Series XT line, rated at 73 Amps (UL continuous) / 80A IEC thermal current at up to 600VAC. With a 3-pole configuration, Frame K (65mm IEC size), and UL/CSA-approved open enclosure design, this contactor is engineered for motor control applications where bidirectional rotation — or high-cycle reversing duty — is required.
The CE55KN3CB features top-mounted auxiliary contacts and is built for panel mounting in motor control centers, machine tool panels, and industrial automation systems that demand rugged, dependable reversing operation.
Key Specifications
- Part Number: CE55KN3CB
- Manufacturer: Eaton
- Series: Freedom Series XT IEC Contactor
- IEC Frame Size: K (65mm)
- Number of Poles: 3-Pole
- Current Rating: 73A UL continuous / 80A IEC thermal
- Voltage Rating: 600VAC maximum
- Reversing Type: Reversing Contactor
- Enclosure Type: Open
- Auxiliary Contact Mounting: Top mounted
- Certifications: UL Listed, CSA Certified
- Standards: IEC 60947-4-1
What Is a Reversing Contactor?
A reversing contactor is an electrically interlocked pair of contactors used to change the direction of a three-phase motor by swapping two of the three supply phases. The Eaton CE55KN3CB includes the mechanical and electrical interlocking necessary to safely enable reversing operation without the risk of phase-to-phase shorting — critical for crane and hoist control, conveyor systems, and any application requiring bidirectional motor control.
Common Applications
- Reversing motor control for three-phase motors
- Crane, hoist, and material handling systems
- Machine tool and CNC motor control panels
- Industrial conveyor and elevator systems
- Pump and compressor reversing control
- Process automation and motor control centers (MCCs)
Why Choose the Eaton CE55KN3CB?
Eaton's Freedom XT IEC contactors are recognized globally for their compact frame design, long electrical life, and compatibility with a wide range of auxiliary contact and overload relay accessories. The CE55KN3CB provides the flexibility of IEC design with the reliability and certification backing required for North American industrial applications — all in an open, panel-mountable form factor.