Art-Nr.: 0055712
MK Asymmetrierelais 9040N.12/001 3AC400V 50/60HZ
Control relay, asymmetry relay, for monitoring three-phase networks for phase failure, voltage asymmetry, reverse voltage, optionally with phase sequence detection and adjustable pickup delay.
- according to IEC/EN 60 255, DIN VDE 0435-303
- Detection of
- voltage asymmetry
- phase failure
- reverse voltages
- optionally with phase sequence detection - 2 LED displays for voltage supply and contact position
- optionally with adjustable pickup delay
- Conductor connection: also 2 x 1.5 mm² stranded wire with ferrule and plastic collar,
- or 2 x 2.5 mm² solid DIN 46 228-1/-2/-3/-4
- optional with screw terminals or with spring force terminals
Relay Knowledge
Background knowledge on standards, technical terms and the correct selection of relays –\npraxisnah prepared.
Read moreRelay Standards and Operating Conditions
Published on 20 July 2026 · Updated on 31 July 2026
According to which standards are relays manufactured and what needs to be considered regarding installation position, voltage peaks and control? An overview.
Read moreRelay technical terms explained
Published on 20 July 2026 · Updated on 31 July 2026
What do contact set, micro disconnection or the utilization categories AC1 to DC13 mean? The most important relay technical terms at a glance.
Read more