# Terasaki Electric S400NF 3 Pole Circuit Breaker 400A - 50/60Hz

The **Terasaki Electric S400NF 3 Pole Circuit Breaker 400A** is a robust solution for industrial automation and marine applications, ensuring reliable protection for your electrical systems. Designed to handle heavy loads, this **circuit breaker** offers superior performance and safety.

Featuring a 690V Ui and 50/60Hz frequency, the **Terasaki Electric S400NF** provides exceptional protection against power surges with its 8Kv Uimp rating. Its 3-pole design makes it suitable for diverse control systems and automation setups. Compliant with JIS C 8201-2-1 and IEC 60947-2 standards, this **400A circuit breaker** guarantees industry-leading performance and safety.

-   **High Current Rating:** 400A capacity for demanding applications
-   **Surge Protection:** 8Kv Uimp rating safeguards against voltage spikes
-   **Wide Compatibility:** Suitable for 50/60Hz systems
-   **Durable Design:** Built for longevity in industrial environments
-   **Certified Quality:** Meets JIS and IEC standards

**Specifications:**

-   Poles: 3
-   Current Rating: 400A
-   Voltage Ui: 690V
-   Frequency: 50/60Hz
-   Uimp: 8Kv

Trust **Terasaki Electric** for dependable electrical protection. The **S400NF circuit breaker** is engineered for seamless integration into your industrial automation systems. Enhance your system's reliability today.

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 breaker, 400A, circuit breaker, industrial automation, power protection, S400NF, Terasaki Electric

## Variants

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

## Images

- Terasaki Electric S400NF 3 Pole Circuit Breaker 400A - 50/60Hz-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/terasaki-electric-s400nf-400a-circuit-breaker)
> Updated: 2026-09-19