UAt, UASt, UASNCt three-phase voltage monitor relays 2021-11-04T09:42:07+00:00

UAt, UASt, UASNCt three-phase voltage monitor relays


Complex protection of the loads (mainly motors), connected to three-phase network. Their opration does not require neutral conductor.


A: phase-asimmetry
S: phase sequence
N: line voltage increase
C: line voltage decrease
The operating values can be set by turn-knob.
The type-mark begins with letter U and it consists the versions of protection

Value of adjustable breaking delay:
0,2…20 s ± 10 %

Dimensions: 50×72×111 mm

Mounting: to 35 mm rail or 2 pcs M4 screws

Degree of protection: IP 20

Relevant standard: EN 61010

Downloadable document


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