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OPAXA OVR-04-0 Voltage Protection Relay
The OVR-04-0 voltage protection relay is designed to supervise supply voltage and intervene when the voltage moves outside the configured upper and lower limits. It is intended for three-phase and single-phase applications such as HVAC systems, compensation panels, capacitor protection and motor-related equipment where voltage quality is important.
Why Choose OPAXA OVR-04-0?
Adjustable Voltage Limits
Separate upper/lower thresholds allow the protection window to be matched to the application.
Dropout Delay
The delayed response can help prevent nuisance operation caused by brief voltage disturbances, subject to the configured device behavior.
Equipment Protection
Voltage supervision adds a dedicated protection layer around loads sensitive to abnormal supply conditions.
Broad Panel Use
Suitable for multiple industrial panel scenarios rather than a single machine type.
Voltage Protection Details
Protection Type
Overvoltage/undervoltage monitoring relay
Limits
Adjustable upper and lower voltage thresholds on the listed model.
Applications
Three-phase/single-phase HVAC, compensation panels, capacitor protection and motor-related equipment.
Engineering Note
Coordinate the relay settings with the actual supply, load tolerance and protection strategy of the installation.
Built for the OPAXA Ecosystem
The OVR-04-0 extends the OPAXA protection approach with a dedicated voltage-monitoring/protection function for three-phase/single-phase HVAC, compensation panels, capacitor protection and motor-related equipment.
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|
FEATURE |
VALUE |
|
Product Code |
OVR-04-0 |
|
Processor |
Microprocessor-based |
|
Operating Temperature |
-5 °C to +55 °C |
|
Operating Voltage |
220 VAC ±20% |
|
Low voltage setting |
Adjustable between 150 V and 210 V |
|
Upper voltage setting |
Adjustable between 230 V and 300 V |
|
Hysteresis |
5 V (Pull-in) |
|
Release delay |
(t-Off): 0.1 s. 20 s |
|
Cable cross-section |
1x0.5–4 mm |
|
Screw Tightening Torque Value |
0.5 Nm |
|
Standard Compliance |
IP20 EN 60529 |
|
Operating Frequency |
50–60 Hz |
|
Control Output |
1 NO/1 NC, 10 A / 250 VAC |
|
Power Consumption |
< 7A |
|
Electrical Life |
100,000 on-off cycles (Resistive Load) |
|
Mounting Type |
Mounted on a DIN rail according to EN 60715 standard, type TH35 |

OPAXA GRUP Endüstriyel Mühendislik Sanayi ve Ticaret A.Ş., 2020 yılında endüstriyel otomasyon sektöründe uluslararası kalite standartlarını Türkiye ve Orta Doğu pazarına taşıma vizyonuyla kurulmuştur. İstanbul merkez ofisi operasyonel birimleriyle faaliyet gösteren şirketimiz, OPAXA markası altında küresel tedarik zincirini yönetmektedir.


