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Monitoring technique
Asymmetry relay BA 9040, MK 9040N varimeter
· According to IEC 255, EN 60 255, VDE 0435 part 303 · Recognition of - voltage asymmetry - phase failure - voltage feedback - optionally with phase sequence recognition · Optionally with adjustable response delay · Insensitive against - symmetric harmonics up to K-factor K 20 % · 2 LED displays for power supply and state of contact · BA 9040: width 45 mm MK 9040N: width 22,5 mm BA 9040 Function diagram
phase sequence
0221538
MK 9040N Approvals and marking
Asym. [%] 100
*
Canada / USA
asymmetry
phase failure
* only for BA 9040 (see variants)
setting value t
Applications Monitoring three-phase mains for voltage asymmetry, phase failure or incorrect phase sequence, e.g. in elevators, escalators, crane systems etc.
MK9040N Datasheet
