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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HRN-34

HRN-34

The relay protects overvoltage/undervoltage in DC 6-30V range
More than 50 pcs
£ 25.65 £ 34.20
-25% Quick info
HRN-42

HRN-42

The relay protects overvoltage / undervoltage AC and DC in three ranges
More than 10 pcs
from £ 51.30 £ 68.39
More variants
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HRN-41

HRN-41

The relay protects overvoltage / undervoltage of AC and DC in three ranges
More than 10 pcs
from £ 51.30 £ 68.39
More variants
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HRN-37

HRN-37

The relay protects overvoltage / undervoltage in the range AC 24 - 150V
More than 10 pcs
£ 22.20 £ 29.59
-25% Quick info
HRN-63

HRN-63

The relay protects overvoltage / undervoltage in the range AC 48 - 276V
More than 5 pcs
£ 22.20 £ 29.59
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MPS-1

MPS-1

Optical signaling of three-phase network
More than 10 pcs
£ 17.41 £ 23.22
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HRN-67

HRN-67

The relay protects overvoltage / undervoltage in the range AC 24 - 150 V
More than 5 pcs
£ 22.20 £ 29.59
-25% Quick info
HRN-35

HRN-35

The relay protects overvoltage/undervoltage in the range AC 48 - 276V
More than 10 pcs
£ 25.18 £ 33.57
-25% Quick info
HRN-33

HRN-33

The relay protects overvoltage/undervoltage in range AC 48 - 276V
More than 200 pcs
£ 22.20 £ 29.59
-25% Quick info
HRN-64

HRN-64

The relay protects overvoltage/undervoltage in DC 6-30V range
More than 10 pcs
£ 25.65 £ 34.20
-25% Quick info
HRN-43N

HRN-43N

The relay protects overvoltage / undervoltage, sequence, failure and phase asymmetry
More than 10 pcs
from £ 44.24 £ 58.98
More variants
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HRN-43

HRN-43

The relay protects overvoltage / undervoltage, sequence, failure and phase asymmetry
More than 10 pcs
from £ 41.02 £ 54.69
More variants
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HRN-57

HRN-57

The relay protects overvoltage/undervoltage, phase failure
More than 10 pcs
£ 34.67 £ 46.22
-25% Quick info
HRN-57N

HRN-57N

The relay protects overvoltage/undervoltage, phase failure
More than 50 pcs
£ 34.67 £ 46.22
-25% Quick info
HRN-54N

HRN-54N

The relay protects overvoltage / undervoltage, sequence and phase failure
More than 50 pcs
£ 36.16 £ 48.21
-25% Quick info
HRN-54

HRN-54

The relay protects overvoltage / undervoltage, sequence and phase failure
More than 100 pcs
£ 36.16 £ 48.21
-25% Quick info
HRN-56

HRN-56

The relay monitors undervoltage, sequence and phase failure
More than 100 pcs
from £ 23.76 £ 31.69
More variants

Wide range of relays for voltage and current monitoring in 1-phase and 3-phase networks. Simple, 1-module for basic functions, but also a sophisticated version for more accurate measurements in multiple ranges with galvanic separation of power supply from the measured circuit. The offer also includes a relay for protecting the power factor in the range cos ϕ 0.1-0.99 and a relay for monitoring the mains frequency 50/60 Hz in the range 80-120%.

Twilight relays analog, digital and outdoor. External SKS sensor with IP65 protection. Supply voltage AC 230 V or universal in the range AC / DC 12-240V. The relays can also serve as a light switch against solar radiation (shielding, photovoltaics, collectors…).

Level switches monitor the level of conductive liquids in wells, tanks, tanks, etc. They can monitor one to six-level levels with optional refill/drain functions. These are either separately sold products or connected directly in a set with a contactor or motor starter.