Voltage and current control relays

ELECTRIC AUTOMATION PRODUCT Control relays Voltage and current control relays

Voltage relays are automated protection devices that ensure safe operation of electrical networks and equipment by continuously monitoring the voltage level and reacting to its fluctuations. They automatically disconnect or switch the circuit if the voltage exceeds preset thresholds, thereby preventing damage to motors, control units, and other electrical equipment.

Voltage monitoring relay in 1P-AC, HRN-35, 1565 Elko EP

Code: HRN35

Supplier:

35.05 EUR (w/o VAT)

Current monitoring relay of lmax level in 1P - AC, PRI-51/5A, 7040 Elko EP

Code: EEP-7040

Supplier:

30.69 EUR (w/o VAT)

HRN-54N; Voltage monitoring relay in 3P with adjustable levels , 7511 Elko EP

Code: EEP-7511

Supplier:

49.50 EUR (w/o VAT)

COS-2/230V; Power factor (cos ϕ) monitoring relay, 5543 Elko EP

Code: EEP-5543

Supplier:

93.43 EUR (w/o VAT)

Undervoltage release (MN),TeSys Deca frame 2,380-400V AC 50Hz/440V AC 60Hz

Code: GVAU385

Supplier: 5+ gab

24.52 EUR

14.71 EUR (w/o VAT)

current control relay, Harmony Control Relays, 5A, 1CO, overcurrent function, 250V AC DC

Code: RM17JC00MW

Supplier: 5+ gab

85.81 EUR (w/o VAT)

RPR415 jaudas virzienu relejs, 380/440VAC, 5A, 50Hz/60Hz RPR415

Code: RPR415

Supplier:

voltage control relay, Harmony Control Relays, 5A, 1CO, 208...480V AC

Code: RM17UB310

Supplier:

87.64 EUR (w/o VAT)

voltage control relay, Harmony Control Relays, 5A, 2CO, 220...480V AC

Code: RM35UB330

Supplier: 5+ gab

158.71 EUR (w/o VAT)

PRI-53/5 Trīsfāžu strāvas kontroles relejs,0.5.. 5A, 2 C/O, 24..240VAC,DC EEP-4214 Elko EP

Code: EEP-4214

Supplier:

94.35 EUR (w/o VAT)

Sprieguma kontroles relejs, 2CO UR6U3052 Schrack Technik

Code: UR6U3052

Supplier: 5+ gab

127.10 EUR (w/o VAT)

PRI-32 Strāvas kontroles releja 1-20A regulējams, 1 fāze PRI32 Elko EP

Code: EEP-8278

Supplier:

56.89 EUR (w/o VAT)

PRI-51/2A Current Relay, 2A

Code: EEP-7039

Supplier:

30.69 EUR (w/o VAT)

HRN-55N,sprieguma kontr.rel., 3f, t=0.5-10s, 8A HRN55N Elko EP

Code: EEP-7513

Supplier:

41.70 EUR (w/o VAT)

PRI-51, strāvas kontroles relejs, I=16A, t=0-10s, 24-240V PRI5116 Elko EP

Code: EEP-7045

Supplier:

30.69 EUR (w/o VAT)

Phase monitoring relay AMPARO, 24V-AC/DC/230V-AC , 1CO, 5A

Code: URAP3011

Supplier: 5+ gab

21.69 EUR (w/o VAT)

PRI-51, Current Control Relay, 1..8A

Code: EEP-7041

Supplier:

30.69 EUR (w/o VAT)

Overload relay 2,4 - 4A

Code: LTT00400

Supplier: 5+ gab

40.60 EUR (w/o VAT)

3-phase control relay, Harmony Control Relays, 8A, 2CO, undervoltage detection, 380...480V AC

Code: RM22TU23

Supplier:

95.94 EUR (w/o VAT)

current control relay, Harmony Control Relays, 5A, 2CO, 0.15...15A, 24...240V AC DC

Code: RM35JA32MR

Supplier: 5+ gab

139.03 EUR (w/o VAT)

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Voltage Relays – precise protection for your electrical equipment

Key features and benefits

Accurate protection: Responds to overvoltage and undervoltage conditions, preventing equipment failure.
Fast response time: Reduces downtime risk and data loss in industrial and commercial installations.
Integration with automation systems: Modern digital models offer adjustable threshold values, visual indicators, and Modbus communication capabilities.
Energy efficiency: Helps maintain stable power supply and extends the service life of equipment.

Applications

Automation and control panels
Distribution boards and electrical protection systems
HVAC equipment (heating, ventilation, and air conditioning)
Water supply and pump control systems

Selection criteria

When selecting a suitable voltage relay, consider the following:

Rated voltage and operating range
Response time and delay settings
Mounting type: DIN rail or panel-mounted design
Additional features: visual indication, communication interface, alarm outputs

Why choose a modern voltage relay?

In today’s industrial environment, even short-term voltage fluctuations can lead to significant losses. Digital voltage relays help maintain high-quality power supply, improve safety, and optimize energy consumption. They are an essential component in smart factories and energy management systems.