2-pole circuit breaker, 400A, DC 1500V, TOMZN - TOM7Z

2-pole 400A DC 1500V circuit breaker TOMZN - TOM7Z

Four benefits to guarantee quality

1. Our DC 1500V MCCB circuit breakers offer maximum protection against short circuits and high-power overloads, ensuring reliable safety for your large-scale photovoltaic installations.
2. Thanks to the use of high-performance fire-retardant materials and simplified installation, this model guarantees durability and efficiency in the most demanding industrial environments.
3. The reinforced double-insulation design drastically reduces the risk of electrical accidents, ensuring safe handling of battery banks and high-voltage DC circuits.
4. The ergonomic and ultra-robust operating handle ensures smooth and durable operation, even under high current loads (400A).

Increased confidence thanks to double insulation

The double insulation of this moulded housing allows installers to configure accessories and connections with complete safety. It provides an optimal protective barrier between active components and the user, which is crucial for systems operating at up to 1500V.

Robust handle design

Specifically designed for the 400A rating, the control handle offers superior mechanical strength. It is treated to prevent premature wear, ensuring intact insulation and precise tactile feedback during every commissioning or maintenance operation.

Ultra-fast instantaneous disconnection

In the event of a fault, the trip mechanism activates in record time (0.1 seconds). This responsiveness protects your inverters and battery banks from irreversible damage. Resetting is simply done by flipping the handle upwards once the fault has been rectified.

Optimised arc quenching for 1500V

Extinguishing a DC electric arc at 1500V is a technical challenge. This circuit breaker incorporates a sophisticated arc-extinguishing chamber that segments and cools the arc instantly, extending the device’s service life and ensuring the safety of the installation.