

What is the main function of the AX-1 Auxiliary Contact?
It provides remote or local signaling of the breaker’s contact position, showing whether the DZ158 or DZ158LE is open or closed.
How is the AX-1 installed?
The device is mounted on the left side of the circuit breaker using its built-in special pin, then secured onto a standard DIN rail for easy integration.
Is the AX-1 suitable for both AC and DC systems?
Yes. It supports both AC 415V / 3A and DC 125V / 1A, ensuring versatile use across various low-voltage circuits.
How durable is the AX-1 in operation?
The auxiliary contact offers a mechanical life of 10,000 cycles and an electrical life of over 6,000 operations, ensuring long-term reliability in control panels and protection systems.
What environmental conditions can it operate under?
It functions efficiently between –5°C and +40°C, with storage capability from –25°C to +70°C, and complies with IP20 protection standards for safe indoor use.