Apator ASA 440-5BO+D+K Surge Arrester 440V 5kA with Disconnector

The Apator ASA 440-5BO+D+K is a professional-grade surge arrester engineered to provide robust protection for electrical systems against transient overvoltages. Designed for reliability, this device acts as a critical safeguard for sensitive electronic equipment and electrical infrastructure, ensuring stability during voltage spikes. With a rated voltage of 440V and a discharge current capacity of 5kA, it offers a balanced performance profile suitable for various demanding environments.

Advantages

This surge arrester stands out due to its integrated disconnector, which significantly enhances operational safety by isolating the device in the event of a failure. The robust construction ensures long-term durability and consistent performance under standard operating conditions. Its compact design allows for efficient installation within existing electrical panels, making it a practical solution for both residential and industrial applications where space and reliability are paramount.

Suitable for

• Residential electrical distribution boards
• Industrial automation and control systems
• Protection of sensitive electronic appliances
• General low-voltage electrical installations

When it may not be suitable

This device is not intended for use in high-voltage power grids or systems exceeding its rated 440V capacity. It should not be installed in environments where the expected surge current consistently exceeds the 5kA discharge rating, as this may lead to premature failure of the component.

Key specifications

• Rated voltage: 440V
• Nominal discharge current: 5kA
• Integrated disconnector: Yes
• Application: Low-voltage electrical protection

How to use

The device should be installed by a qualified electrician in accordance with local electrical codes and safety regulations. It is typically mounted on a standard DIN rail within the distribution board. Ensure that the connections are secure and that the wiring is correctly sized for the intended load. The integrated disconnector provides a visual indication of the device status, which should be monitored periodically during routine maintenance checks.

What to consider before purchase

• Verify that the system voltage does not exceed 440V
• Ensure the installation environment is compatible with the device dimensions
• Confirm that the discharge capacity meets your specific protection requirements
• Check compatibility with existing circuit protection components

Usage recommendations

Regular inspection of the surge arrester is recommended to ensure the disconnector is in the correct position. If the device has tripped, it must be replaced immediately to maintain the integrity of the electrical protection system.