# 3 Pole Circuit Breaker | Terasaki S400NJ 800V - 400A Protection

The **Terasaki S400NJ** 3 Pole Circuit Breaker offers reliable electrical protection at 800V and 50/60Hz. Designed for industrial and marine applications, this circuit breaker ensures your systems are safe from overcurrent and short circuits. What makes the **Terasaki S400NJ** ideal for demanding environments

-   **High Breaking Capacity:** 50kA breaking capacity ensures rapid fault interruption
-   **IEC Compliance:** Meets IEC 60947-2 standards for reliable performance
-   **Compact Design:** 30mm terminal width for easy installation in various panels
-   **Durable Construction:** Built to last, providing long-term electrical protection
-   **Versatile Application:** Suitable for diverse industrial and marine settings

Technically, the **Terasaki S400NJ** operates at 800V with a 400A current rating. Its 50kA breaking capacity and IEC 60947-2 compliance make it a robust choice for automation and control systems. The **Terasaki S400NJ** is engineered for superior performance and reliability.

Trust **Terasaki** for dependable electrical protection in your critical systems. Upgrade to the **S400NJ** today for enhanced safety and performance.

Also our company name is Ram Automations and also you can contact us on email info@ramautomations.com

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Industrial Automation > Circuit Breakers > 3-Pole
- **Tags:** 3-pole-circuit-breaker, 400A, 800V, circuit-protection, industrial-automation, S400NJ, Terasaki

## Variants

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

## Images

- 3 Pole Circuit Breaker | Terasaki S400NJ 800V - 400A Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/terasaki-s400nj-3-pole-circuit-breaker)
> Updated: 2026-09-19