Doktorvolt DV-3431 3-Phase Miniature Circuit Breaker B32 3P 400V 10kA

The Doktorvolt DV-3431 is a robust 3-phase miniature circuit breaker engineered to provide dependable protection for electrical circuits in both residential and industrial environments. This 3-pole device is designed to handle a 400V AC power supply and features a B32 characteristic, making it suitable for circuits with moderate inrush currents. With a high breaking capacity of 10kA, it effectively safeguards electrical installations against the risks of overloads and short circuits, ensuring the integrity of your power distribution system.

Advantages

This circuit breaker stands out due to its high-quality construction and adherence to strict safety standards, evidenced by its VDE certification. The 3-module design allows for efficient space utilization within standard distribution boards. Its reliable tripping mechanism ensures rapid response times during fault conditions, minimizing potential damage to connected equipment and wiring. The device is built for durability, providing long-term operational stability in demanding electrical setups.

Suitable for

• Residential electrical distribution boards
• Industrial power supply systems
• Protection of lighting circuits
• General purpose 3-phase appliance protection

When it may not be suitable

This device is not intended for use in DC electrical systems or single-phase circuits requiring different amperage ratings. It may also be unsuitable for applications involving high-starting-current motors where a C or D characteristic curve would be required to prevent nuisance tripping.

Key specifications

• Rated voltage: 400V AC
• Rated current: 32A
• Tripping characteristic: B
• Number of poles: 3
• Breaking capacity: 10kA
• Mounting: DIN rail
• Width: 3 modules

How to use

The circuit breaker should be installed by a qualified electrician in accordance with local electrical codes. It is designed for mounting onto a standard 35mm DIN rail within an electrical enclosure. Ensure that the supply cables are securely connected to the input terminals and that the load cables are connected to the output terminals, maintaining proper torque settings to prevent loose connections. Once installed, the toggle switch can be used to manually isolate the circuit for maintenance or to reset the breaker after a trip event.

What to consider before purchase

• Verify that the 32A rating matches the load requirements of your circuit.
• Ensure your distribution board has sufficient space for a 3-module wide device.
• Confirm that the B-type characteristic is appropriate for your specific connected loads.
• Check that the installation environment meets the technical requirements for this breaker.

Usage recommendations

Regularly inspect the circuit breaker for signs of thermal damage or loose connections. It is recommended to perform a functional test of the tripping mechanism periodically to ensure continued reliability in protecting your electrical infrastructure.