# Terasaki XS50NB 15A 3-Pole Circuit Breaker AC660V

The **Terasaki XS50NB 15A AC660V 3-Pole Molded Case Circuit Breaker** is a critical component for safeguarding electrical systems in industrial and commercial environments. Designed for three-phase circuits, this circuit breaker ensures reliable overcurrent and short-circuit protection, maintaining operational safety and preventing costly downtime. The **XS50NB** model is engineered for durability and consistent performance in demanding applications.

Featuring a robust design, the **Terasaki XS50NB 15A circuit breaker** is ideal for integration into automation panels, motor control systems, and power distribution networks. This breaker's specifications include an AC660V rating and 50-60Hz compatibility, making it suitable for a wide range of electrical systems. The thermal-magnetic trip unit provides dependable protection. The molded case design, using industrial-grade materials, ensures a long service life and reliable trip response, meeting IEC/EN standards for low-voltage circuit protection. The mounting is designed for panel or switchgear installation, which enables secure and stable operation.

**Key Features:**

-   3-pole molded case design for complete three-phase protection.
    
-   Rated at **15A** with **AC660V** capability.
    
-   Compatible with **50-60Hz** systems for versatile deployment.
    
-   Durable industrial-grade construction for long service life.
    
-   Ideal for control panels, distribution boards, and automation systems.
    

The **3-Pole Molded Case Circuit Breaker XS50NB 15A AC660V 50-60Hz | Terasaki** from Ram Automations offers dependable protection for your critical electrical systems. Terasaki's reputation for precision engineering ensures safety and reliability. Enhance your three-phase system's performance and safety with this advanced circuit breaker. For inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Terasaki
- **Type:** Electrical Components > Circuit Breakers > Molded Case Circuit Breakers
- **Tags:** 15A, 3-pole circuit breaker, AC660V, automation systems, circuit breaker, electrical safety, industrial circuit protection, molded case breaker, Terasaki, XS50NB

## Variants

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

## Images

- Terasaki XS50NB 15A 3-Pole Circuit Breaker AC660V-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/terasaki-xs50nb-15a-3-pole-circuit-breaker)
> Updated: 2026-09-19