Description

Star Delta Hi-OPR timer

Voltage Protection Relay

Timers

 

When it comes to the safety and protection of your home and family, trust only the best.

• The best choice! There is no worry about the details, as it is necessary to achieve complete protection and safety for you and your family.
• Made to last and make a lasting impression.
• It is widely used to control electrical circuits.
• This series of products can be used in all circumstances.

The group invests in research and development in order to maintain innovation and differentiation, with a strong commitment to sustainable development.

Single Phase DIN-Rail Mounting Voltage Device

AC DC over or under voltage protection device Applications Used in single phase control system, when the power supply is abnormal (voltage is too high or too low), cut off the power to protect electrical equipment from damage.

Built-in microprocessor, true RMS measurement, voltage measurement

Modern life makes us crave nature, with the original, real and pure touches of our existence.

• Open your door and let nature enter your home
• The best choice! There is no worry about the details as it is necessary to achieve a perfect result.
• Made to last and make a lasting impression.

This series of products are widely used to control electromagnetic starter and other automatic control circuits.
This series of products is a metal coil, and the middle connection adopts the fast and convenience installation method, and it can be used in all terrible conditions because of its anti-locking, falling and vibration resistance.

But first, we must know what the timer is ( the electric timer) and what is it used in general?

The timer is one of the most important tools used in the field of electrical control, as it automatically connects a circuit after a specified period of time, to operate a load or to deliver electric current to a contactor coil. It is frequently used in control circuits, for the purpose of protecting the components of the inner drum.

The contactor is the heart of the electrical control circuits, so you cannot design an electrical control circuit without the presence of the contactor

The contactor  mainly works on the magnetic effect of the electric current, so that it uses a coil through which an electric current passes, and it generates a magnetic field that works to attract an iron core, which is connected to the ends of the power circuit. Air conditioning, lighting and heating circuits, etc

The contactor  is one of the most important elements of automatic control, rather it is very important. It is a box containing contacts, i.e. switches. These contactors are used in the power circuit to connect a high current, and some are intended to connect to the control circuit through which a small current passes.

Components of the internal timer

1. Timer feed source:  contains different voltages according to its manufacturer such as 220V/AC or 120VA and so on.
2. Electronic board:  Its function is to control the specified time delay.
3. Relay:  Its function is one of the signals from the electronic board at the end of the time delay period, and accordingly the current reaches the relay coil, then the contact points of the relay are changed.
4. Indicator to control the time delay period.

Timer contact points

1. “Normally Closed” NC:  The points are in their normal state closed and open when the specified delay period ends. It can be used by placing a signal lamp to know the change of contact points from NC to NO.
2. “Normally Open” NO:  The points are in their normal state open and closed when the specified delay period ends.
3. Common point:  It is the common point, as it is directly connected to the electric current.

Types of timer

• In terms of internal installation:
  • Motorized timer.
  • Electronic timer.
  • Air timer.
• In terms of working principle:
  • Timer with “On Delay” system.
  • Timer with “Off Delay” system.
  • Flasher Timer.

Motorized timer

Its principle is based on a small internal motor that drives a group of sub-gears by means of a main gear. This gear has a protruding part that is changed by changing the axis of rotation of the timing, as a result of which the protruding part may approach or move away from the point of contact.

Electronic timer

Designing a circuit that contains electronic parts with a relay of small size. Timing is controlled through an electronic element called variable resistance. This type of timer contains multiple capabilities to perform functions.

Air timer

It consists of a spiral bulge with a coil whose opening value changes by means of a grading roller with which the required timing is set.

When it is turned on, the spiral bulge is attracted and air begins to enter through the bulge opening until it is filled and rises to the top until its contact points are changed.

This type is characterized by the fact that it does not need a power source because it does not contain an internal file or drive.

Timer with “On Delay” system

When connected to the mains, the timer counts down until it reaches the specified time, and accordingly the timer contact points change.

Timer with “Off Delay” system

When it is connected to the electric current, the timer starts, and after that the counting that has been set begins, and when the counting is completed, the timer contact points change, and when the current is disconnected at any moment, it works on the counting from the beginning.

Flasher Timer

When the timer is connected to the electric current, it starts counting according to the specified value, and after completing the counting, the contact points change as the counting continues to return to the normal state again, and so on until the electric current is disconnected from it.

An example of this is refrigerator timers, clock timers…. etc.

Therefore, the timer is used in the time control of electrical appliances, lighting, heating, capacitors, and others.

It is used to control electric motors, lighting, heating, capacitors and others.

Intelligence surpasses vision

Star Delta Hi-OPR timer

Dimensions:

Product details

• In the face of fierce market competition, we will give full play to the spirit of forging ahead and improve our product Single Phase Over Voltage Controller 20V Three Phase Over/Under Voltage Relay in a consistent, stable, rigorous and standardized management style.
• We take a brand-new management model, perfect technology, thoughtful service, and excellent quality as the basis for survival.
• So please do not hesitate to contact us.

The importance of the model:

ZHRV5-02/A220 dc low voltage relay, rated supply voltage AC220V, with overvoltage and undervoltage protection, operating range AC160V~270V, setting range 180V-260V, 0.1s~10s adjustable.

It can work both AC and DC power system Wide working voltage range, mini design, voltage can be set and adjusted directly by end user, hot selling.

We have very precise machines that make us able to develop and manufacture many new DIN-Rail Single Phase Voltage Relay, which represents our strength and dominance.

To maintain the leading position in our industry, we never stop challenging limitations in all aspects to create the perfect products.

About the product:

• Widely used: control and protection devices
• Suitable for: This is used for overload protection, short circuit protection for DC lines or equipment, and for lines that do not require frequent switching.
• LONG SERVICE TIME: High-performance, fire-retardant and impact-resistant plastic ensures a long service time.
• Processing, environmental protection electroplating, has good torsion tolerance and anti-oxidation effect.
• Small in size and light in weight, it has reliable performance, high breaking capacity and responsive action.
• High quality and professional after-sales service: We are confident in the quality of our products and have a professional after-sales team to serve you.

Type: Hi-OPR under and over voltage control device

Made of unbreakable, glossy, thermoplastic polycarbonate, it is made of thermoplastic polycarbonate, and is resilient to withstand harsh impacts and extreme force.

Modern look with sleek and smooth design, greatly enhances the look and feel of your room.

Product Description :

Finished plastic – ideal for installation in the office, living room, office and nursery, easy to install in all common wall-mounted boxes

Easy to install, wall mount and use

Flame retardant materials

• High temperature resistance and flame retardant plastic

Super protection:

• It is made of very safe materials, so it is environmentally friendly
• Provides flexibility in installation and ease of installation.

Product benefits

• Long life, safe, good reliability, excellent design and so on.
• Combines simplicity of installation, flexibility and durability.
• Meets the requirements of the majority of industrial applications.
• Simple structure and easy to install.
• The classic shape features a simple look and modern feel to reflect your personality.
• The strong and durable surface gives you many years of dependable service.
• Made of high quality thermoplastic material, smooth surface, flame retardant, flexible and durable, can withstand tough impacts and heavy force, long service life.