Application

BNnN voltage transformers are mainly dedicated to photovoltaic installation protection. They are offered in two types of housing to facilitate installation in different types of switchboards.

Technical data

Rated voltage factor (Kn) 1.9;2.1
Rated insulation test voltage 6 kV
Frequency 50 Hz
Rated operating voltage 800; 800√3
Secondary side voltage 100; 100√3
Continuous thermal current 120% In
Accuracy class 0.5;1
Rated load 5VA
Degree of protection against external mechanical impacts IK 07
IP protection class IP 20
Operating temperature −25 °C to +70 °C
Insulation class B
Transport and storage temperature -55 °C …. +55°C