# Cutler-Hammer CN55NN3 Reversing Contactor 135 Amp - Industrial Grade

The **Cutler-Hammer Eaton CN55NN3 Series B1 reversing contactor**, rated at 135 Amp and 600V, is a robust solution for a wide range of industrial applications. Designed for NEMA Size 4 applications, this contactor ensures efficient and reliable performance in demanding environments. This industrial-grade contactor is manufactured to meet the highest standards, providing long-lasting durability and optimal operational efficiency.

This **reversing contactor** operates on 120V 60Hz or 110V 50Hz power sources and features a C320KGS42 11 Series A2 design, adhering to EN60947-5-1 and IEC 947-5-1 standards. With a UI rating of 690V, Ith of 10A, and Uimp of 6kV, it is built to withstand heavy-duty industrial usage. Ideal for industrial machinery, the **CN55NN3 contactor** offers superior performance and is manufactured in the U.S.A.

Key Features:

-   **High Amp Rating:** 135 Amp, ensuring capability for heavy-duty applications.
-   **Voltage Compatibility:** Operates at 600V, suitable for various industrial power systems.
-   **Industrial Standards:** Meets CSA B44.1/ASME A17.5, EN60947-5-1, and IEC 947-5-1 standards for reliability.
-   **Durable Design:** Built for NEMA Size 4 applications, providing robustness and longevity.
-   **Wide Compatibility:** Compatible with C321KM3 Series A1 for Size 3 & 4 and C321KM5 Series A1 for Size 5.

Specifications:

-   Max AC Rating: 135 Amp
-   Voltage: 600V
-   Power Source: 120V 60Hz or 110V 50Hz
-   Standards: CSA B44.1/ASME A17.5, EN60947-5-1, IEC 947-5-1
-   UI Rating: 690V
-   Ith: 10A
-   Uimp: 6kV
-   Weight: 17.660 kg

The **Cutler-Hammer Eaton CN55NN3 series contactor** provides exceptional performance and reliability for your industrial automation needs. Its rugged design and adherence to stringent standards ensure seamless integration and efficient operation. Upgrade your systems with this dependable contactor from **Ram Automations** for enhanced productivity. For any inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Cutler-Hammer
- **Type:** Industrial Automation > Motor Controls > Contactors
- **Tags:** 135 amp, 600V contactor, CN55NN3, Cutler-Hammer, industrial automation, motor control, reversing contactor

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Cutler-Hammer CN55NN3 Reversing Contactor 135 Amp - Industrial Grade-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/cutler-hammer-cn55nn3-reversing-contactor)
> Updated: 2026-09-19