Protection and monitoring relays - Guarded values -
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Wide range of relays for voltage and current monitoring in 1-phase and 3-phase networks. Also included are relays for power factor monitoring in the range cos ϕ 0.1-0.99 and relays for monitoring the mains frequency 50/60Hz in the range 80-120%. A special category of monitoring relays are twilight relays in analog, digital or increased coverage. The relays can also serve as a light switch against solar radiation (shielding, photovoltaics, collectors…). |
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TOP
HRN-34
The relay protects overvoltage/undervoltage in DC 6-30V range
Not in stock
$ 39.40
$ 51.17
-23%
HRN-42
The relay protects overvoltage / undervoltage AC and DC in three ranges
More than 10 pcs
from
$ 71.50
$ 92.86
-23%
HRN-41
The relay protects overvoltage / undervoltage of AC and DC in three ranges
More than 10 pcs
from
$ 71.50
$ 92.86
-23%
HRN-37
The relay protects overvoltage / undervoltage in the range AC 24 - 150V
More than 5 pcs
$ 34.40
$ 44.67
-23%
HRN-63
The relay protects overvoltage / undervoltage in the range AC 48 - 276V
More than 5 pcs
$ 34.40
$ 44.67
-23%
MPS-1
Optical signaling of three-phase network
More than 10 pcs
$ 27.27
$ 35.42
-23%
HRN-67
The relay protects overvoltage / undervoltage in the range AC 24 - 150 V
In stock
$ 34.40
$ 44.67
-23%
HRN-35
The relay protects overvoltage/undervoltage in the range AC 48 - 276V
Not in stock
$ 35.10
$ 45.58
-23%
HRN-33
The relay protects overvoltage/undervoltage in range AC 48 - 276V
More than 50 pcs
$ 34.40
$ 44.67
-23%
HRN-43N
The relay protects overvoltage / undervoltage, sequence, failure and phase asymmetry
More than 100 pcs
from
$ 61.66
$ 80.08
-23%
HRN-43
The relay protects overvoltage / undervoltage, sequence, failure and phase asymmetry
More than 50 pcs
from
$ 64.28
$ 83.49
-23%
HRN-57
The relay protects overvoltage/undervoltage, phase failure
More than 10 pcs
$ 52.16
$ 67.74
-23%
HRN-57N
The relay protects overvoltage/undervoltage, phase failure
More than 50 pcs
$ 52.16
$ 67.74
-23%
HRN-54N
The relay protects overvoltage / undervoltage, sequence and phase failure
More than 200 pcs
$ 50.40
$ 65.46
-23%
HRN-54
The relay protects overvoltage / undervoltage, sequence and phase failure
More than 200 pcs
$ 50.40
$ 65.46
-23%
HRN-56
The relay monitors undervoltage, sequence and phase failure
More than 100 pcs
from
$ 34.84
$ 45.25