# Merlin Gerin Circuit Breaker 685654 MX-A – Shunt Trip Protection

Protect your electrical systems with the Merlin Gerin circuit breaker, part number 685654 MX-A. This component is designed for superior performance and reliability in industrial and automation environments. Featuring a shunt trip mechanism, this circuit breaker offers fast and efficient protection against overloads and short circuits, ensuring the safety and efficiency of your operations.

-   **Shunt Trip Functionality:** Provides immediate response to electrical faults.
-   **Wide Compatibility:** Compatible with IEC 110/127 V AC and 100/110 V DC power sources.
-   **Fast Tripping Time:** Operates in just 0.033 seconds at 0.22A, ensuring rapid protection.
-   **Integrated Relay:** Includes the VK 688713 SCA 92-03 relay for enhanced control.
-   **Designed for Industrial Use:** Ideal for switchboard applications at 440V 60Hz.

This circuit breaker, manufactured by Nuova Magrini Gal, is a testament to quality and durability. The inclusion of the XF-E closing release and the 120V-60Hz-20VA "A" auxiliary contact further enhances its adaptability within various electrical setups. Trust the Merlin Gerin circuit breaker to deliver dependable performance in your critical applications. For all your circuit protection needs, consider the superior quality of this product.

For inquiries, please contact Ram Automations at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Electrical Components > Circuit Breakers > Shunt Trip Breaker
- **Tags:** 440V circuit breaker, 685654 MX-A, circuit breaker, electrical protection, industrial automation, Merlin Gerin, shunt trip, switchboard

## Variants

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

## Images

- Merlin Gerin Circuit Breaker 685654 MX-A – Shunt Trip Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/merlin-gerin-685654-mx-a-shunt-trip)
> Updated: 2026-09-18