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Home > Electrical & Electronics > Power Supply & Distribution > Switchgear > Single Phase Voltage Protective Relay With LED Digital Display and Adjustable Delay

Single Phase Voltage Protective Relay With LED Digital Display and Adjustable Delay

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Single Phase Voltage Protective Relay With LED Digital Display and Adjustable Delay photo-5

Product Spotlights

Features a clear LED digital display for real-time voltage monitoring and fully adjustable over/under voltage thresholds with configurable trip delay. Designed for DIN rail mounting, it offers reliable protection for single-phase equipment against damaging voltage fluctuations, helping to reduce downtime and repair costs. Ideal for industrial machinery, HVAC, and power distribution applications.

US$ 3.12 ≥10 Units

Key Specifications

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Phase Configuration:

Single Phase

Display Type:

LED Digital Display

Function:

Over/Under Voltage Protection with Adjustable Delay

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Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Phase Configuration Single Phase

Display Type LED Digital Display

Function Over/Under Voltage Protection with Adjustable Delay

Typical Applications Industrial Machinery, HVAC Systems, Power Distribution

Mounting Style DIN Rail Mount

Adjustable Parameters Voltage Threshold, Trip Delay Time

Certifications Available upon request

Supply Voltage Range Customizable

As a dedicated manufacturer with over a decade of expertise in electrical protection, Jinhua Dika Electrical Equipment Co., Ltd. proudly presents our advanced Single Phase Voltage Protective Relay. Engineered for precision and reliability, this relay integrates a clear LED digital display with fully adjustable delay settings, offering a robust solution for safeguarding sensitive equipment against damaging voltage fluctuations. Our commitment to stringent quality control, evidenced by our comprehensive certification portfolio, ensures that every unit delivers consistent performance and peace of mind for your critical operations.

Core Features & Technical Advantages:

High-Precision Monitoring: Continuously monitors single-phase AC voltage with high accuracy, providing real-time visual feedback via the bright LED digital display.
Fully Adjustable Protection: Users can independently set both the over-voltage and under-voltage trip thresholds, as well as the trip delay time, allowing for customized protection tailored to specific load requirements.
Enhanced Equipment Lifespan: Prevents motor burnout, compressor failure, and electronic component damage by instantly disconnecting power during sustained voltage anomalies.
User-Friendly Interface: Simple button controls and an intuitive menu make configuration straightforward, reducing setup time and potential for error.
Compact & Versatile Design: Standard DIN rail mounting facilitates easy integration into existing control panels, cabinets, and distribution boards.
Wide Application Scope: Ideal for a vast range of applications including industrial pumps, air conditioning systems, refrigeration units, CNC machines, and single-phase power supply networks.

Detailed Technical Specifications:

Parameter	Specification
Rated Supply Voltage	Customizable (e.g., 110VAC, 220VAC, 240VAC)
Voltage Measurement Range	Wide range, specific details available upon request
Setting Accuracy	High precision, typically ±1% of set value
Adjustable Delay Range	Wide range (e.g., 0.1s to 300s), customizable
Display	3 or 4-digit LED Digital Display
Output Relay Contact	SPDT or DPDT, rated for resistive/inductive loads
Operating Temperature	Standard industrial range (e.g., -10°C to +55°C)
Mounting	Standard 35mm DIN Rail

Benefits for Your Business:

Reduces Downtime & Repair Costs: Proactive voltage protection minimizes unexpected equipment failures and associated maintenance expenses.
Improves System Reliability: Ensures continuous operation of connected machinery by maintaining voltage within safe limits.
Increases Safety: Protects both personnel and equipment from hazards caused by electrical faults.
Offers Configuration Flexibility: The adjustable parameters allow the relay to be fine-tuned for various sensitive loads and operating environments.

Trust in a partner with a proven global footprint. Jinhua Dika Electrical serves markets across North America, South America, Europe, Asia, Africa, and Oceania, with an annual export value reflecting strong international confidence. Our products are shipped from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo for efficient logistics. Backed by a robust quality management system, this Single Phase Voltage Protective Relay is manufactured to deliver dependable performance. Protect your investments and enhance your operational stability—contact us today for detailed specifications, pricing, or to discuss your specific application requirements.

Frequently Asked Questions (FAQ):

What is the primary function of this voltage protective relay?
Its main role is to monitor single-phase AC voltage continuously. It will trip its output relay to disconnect the load if the voltage exceeds (over-voltage) or falls below (under-voltage) the user-defined thresholds for a duration longer than the set delay time, thereby protecting connected equipment.
How do I set the voltage trip points and delay time?
The unit features a user-friendly interface with button controls. You can navigate through the menu on the LED display to independently adjust the high and low voltage limits, as well as the time delay before tripping, allowing for precise customization.
Can this relay be used with three-phase systems?
This specific model is designed for single-phase voltage monitoring and protection. For three-phase applications, we offer dedicated three-phase voltage monitoring relays.
What is the purpose of the adjustable delay function?
The delay prevents nuisance tripping caused by brief, harmless voltage sags or surges (like those from motor startups). It ensures the relay only activates for sustained voltage problems that could cause actual damage.
Is the relay suitable for outdoor installation?
It is designed for indoor use within standard industrial control panels. For outdoor applications, it must be housed in a properly rated enclosure that provides protection against moisture and dust.
What certifications does this product hold?
As a manufacturer with a comprehensive quality system, we hold various certifications. Specific certifications applicable to this relay model can be provided upon request to meet your regional or industry requirements.
What is the output relay contact rating?
The output relay is typically rated for switching common control circuit loads (e.g., contactor coils). The exact rating (amperage, voltage AC/DC) is available in the detailed datasheet upon request.
Do you offer custom voltage ranges or configurations?
Yes, we have manufacturing flexibility. Customizations such as specific voltage measurement ranges, different output contact configurations, or special labeling are often possible. Please contact our sales team with your requirements.