# Masterpact NT12 Switch Disconnector Merlin Gerin Circuit Breaker

The Merlin Gerin Masterpact NT12 Switch Disconnector Circuit Breaker ensures top-tier safety and performance for electrical systems. Designed to excel in demanding industrial environments, this circuit breaker offers reliable protection and seamless operation.

This robust circuit breaker features a maximum UI of 1000V, a Uimp of 12Kv, and a Ue of 690V. It also has an Icw of 36Ka/1S and an Icm of 75Ka peak, adhering to IEC 60947-2 standards. The **Masterpact NT12** handles heavy electrical loads with ease, operating at 50/60 Hz with an Ith of 1250A at 55°C per IEC 60947-3 guidelines.

-   **High Voltage Capacity:** Up to 1000V UI, 12Kv Uimp, and 690V Ue.
-   **Superior Protection:** Icw of 36Ka/1S and Icm of 75Ka peak.
-   **Heavy Load Handling:** Ith of 1250A at 55°C.
-   **Compact Design:** Lightweight at 32.500 Kg for easy installation.

**Specifications:**

-   Maximum Voltage (UI): 1000V
-   Impulse Withstand Voltage (Uimp): 12kV
-   Rated Operational Voltage (Ue): 690V
-   Short-Circuit Withstand Current (Icw): 36kA/1s
-   Peak Short-Circuit Current (Icm): 75kA
-   Rated Thermal Current (Ith): 1250A at 55°C

The **Merlin Gerin Masterpact NT12** ensures your electrical systems are well-protected against faults and disruptions. Invest in this high-quality **switch disconnector circuit breaker** for superior performance and safety in industrial and automation systems.

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

## Details

- **Price:** 999.0 USD
- **Vendor:** Merlin Gerin
- **Type:** Electrical > Circuit Breakers > Switch Disconnectors
- **Tags:** circuit breaker, electrical protection, high voltage, industrial automation, Masterpact NT12, Merlin Gerin, switch disconnector

## Variants

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

## Images

- Masterpact NT12 Switch Disconnector Merlin Gerin Circuit Breaker-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/masterpact-nt12-switch-disconnector-merlin-gerin)
> Updated: 2026-10-04