The Siemens Alarm Switch is a reliable accessory for 3VJ13 (400A) and 3VJ14 (630A) breakers. Featuring a single changeover contact positioned on the left, it is designed for efficient fault indication. With a 500V insulation voltage and minimum operating voltages of 240V AC and 48V DC, this switch ensures dependable performance. Rated for a 5A thermal current, it is ideal for enhancing the safety and monitoring of breaker systems.