Phoenix Contact 2859181

The surge protective device, designated as VAL-MS 320/3+1/FM, is a 4-channel module intended for installation on a DIN rail measuring 35 mm. It operates at a voltage of 230 V AC and incorporates a remote indication contact that functions as a changeover contact. This device is suitable for TN-S power supply systems and is classified under IEC test classification II.

Manufactured in Germany, this surge arrester features a maximum continuous operating voltage of 335 V AC across different configurations, including L-N and L-PE. Its nominal discharge current is rated at 20 kA, ensuring effective protection against transient overvoltages. The device’s operational parameters include a response time of ≤ 25 ns for L-N and ≤ 100 ns for L-PE. The protection levels are ≤ 1.5 kV for L-N and ≤ 1.9 kV for L-PE, which are crucial for maintaining system integrity.

Robust in design, it supports a wide ambient temperature range of -40 °C to 80 °C and operates effectively at altitudes up to 2000 m. The device also meets various standards, notably EN 61643-11, ensuring compliance with international safety and performance benchmarks.