DIN EN 50065-4-6:2005 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-6: Low voltage decoupling filters - Phase coupler; German version EN 50065-4-6:2004
2005DIN EN 50065-4-6:2005 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-6: Low voltage decoupling filters - Phase coupler; German version EN 50065-4-6:2004