OBO Bettermann V20-0-440

Need help?

Do you have a question about the OBO Bettermann V20-0-440 and is the answer not in the manual?

Summary

Overview of the surge protection device's purpose, features, and connection encoding.

Specifies that only qualified electrical technicians should mount and connect the device.

Essential safety precautions, including de-energizing circuits and avoiding storms during work.

Guidelines for device placement, wiring lengths, and connection methods for TN-C systems.

Caution regarding terminal load limits and the need for a suitable back-up fuse.

Instructions for safely unlocking and removing the surge protection device.

Procedure for identifying and replacing faulty arresters based on visual indicator changes.

Advice on performing periodic visual checks of the device's indicator.

Instructions for proper disposal of packaging and the surge protection device.

General

Type	Type 2
Maximum continuous operating voltage AC	440 V
Maximum discharge current (8/20)	40 kA
Nominal discharge current (8/20)	20 kA
Short-circuit withstand	25 kA
Mounting method	DIN Rail
Response Time	< 25 ns
Housing Material	Thermoplastic
Protection Class	IP20
Connection Cross Section	1.5 - 35 mm²
Standards	IEC 61643-11
Nominal Voltage (Un)	230/400 V
Operating Temperature Range	-40°C to +80°C