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CN55NN3A
The CN55NN3A is a NEMA magnetic contactor from Eaton Cutler-Hammer's Freedom Series. Suitable for full-voltage reversing applications, this device operates efficiently with a thermal current rating of 135 A and is compatible with both 3-phase systems and multiple voltage levels.
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Technical specifications for CN55NN3A
| Manufacturer | Eaton Cutler-Hammer |
|---|---|
| Product Type | NEMA magnetic contactor |
| Product Line | Freedom Series |
| Part Number | CN55NN3A |
| Weight | 42.06 lbs (19.08 kg) |
| UPC | 782113604145 |
| NEMA Size | Size 4 |
| Starter Type | Full-voltage reversing |
| Poles | 3 poles |
| Phases | 3-phase |
| Thermal Current | 135 A |
| Max System Voltage | 600 V |
| Coil Rating | 120/60 or 110/50 V |
| Line Frequency | 50/60 Hz |
| Motor HP @ 208V | 40 hp |
| Motor HP @ 240V | 50 hp |
| Motor HP @ 480/600V | 100 hp |
| Housing | Open style |
| Aux Contacts | 1 NO & 1 NC |
The CN55NN3A, categorized under Eaton Cutler-Hammer's Freedom Series as a NEMA magnetic contactor, provides reliable functionality for industrial applications. This contactor is designed in size 4 and supports full-voltage reversing serving three-phase motor configurations. Its robust thermal current capacity reaches up to 135 amperes, enabling it to handle substantial loads efficiently. The device is rated for a maximum voltage of 600 volts, allowing for extensive operating capabilities.
This model can effectively accommodate various motor sizes, with ratings of 40 horsepower at 208 volts, 50 horsepower at 240 volts, and extending up to 100 horsepower when operating at 480 or 600 volts. The coil has dual ratings of 120/60 volts or 110/50 volts, making it versatile across different line frequencies of either 50 or 60 Hz.
The contactor also features an open-style housing that ensures ease of access and installation. It includes auxiliary contacts, which consist of one normally open and one normally closed contact, providing additional functionality in control applications. This contactor is essential for users requiring dependable performance in complex control environments.