چگونه رله زمانی مناسب را برای پروژه خود انتخاب کنیم

الف رله زمان is a device responsible for dominating the power flow of a circuit via electromagnetism. Here, there is a wire coil wrapped around an iron core. Once power flows across the circuit, a magnetic field is created in the electromagnet.  

This magnetic field then takes charge of attracting or repelling another magnet that is attached to a time relay switch located within the device. This gives you control by managing how long the current flows through the coils before the stop.

This guide will teach you the steps and ways of picking the right time relay for your electrical projects. It will cover the following:

– How a time relay works

– Applications of time relays

– How to choose the right time relay

The Time Relay Working Principle

Electromagnetism is the central concept in the working principle of a programmable timer relay. In its structure, one relay coil is always on, while the other can be programmed, so it is off and on only when an electric signal is sent across from a device for control, such as a phone or PC. It is the turned-on coil that always receives power, ready to activate when it should.

Meanwhile, the “off” coil receives power only upon the activation of the device. Then, it functions to pull in an armature that activates the circuit’s other end upon the flow of electricity. While the power remains off, this armature pulls back to where it was originally, no longer letting electricity to flow through the circuit.

تایمر THC-15A

THC-15A timer relay offers precise time control for automation systems. Ideal for industrial and commercial use, with adjustable delay and DIN rail mounting.

مشاهده محصول

Applications and Real-World Applications

A time relay is important because of the following popular applications:

• Controlling power outlets
• Activating lines
• Managing other types of machines

They are also utilized in high-performing applications, such as robotics and machines that require precise timing.

For instance, these devices are used in the following scenarios:

• Pneumatic cylinders
• Timer control in coffee makers
• Lighting systems at airports and train stations
• Powering up security cameras, and more

Guide on How to Choose the Right Time Relay

Follow these guidelines when shopping for the right time relay device:

1. Sizing

The physical size of your time relay is an important consideration, especially since you need to find the right one for the vastness of your space. There are various equipment to choose from depending on your space requirements and installation needs. While smaller relays are best for compact assemblages, the sizing and the electrical capacity of your relay must be brought to a balance to ensure the safety of your operations.

2. Switching Speed and Frequency

Know that various applications necessitate various switch speeds. For rapid-response systems like automation and control panels, high-speed switching that’s more frequent is required.

3. Mechanical Strength and Durability

Regular replacement is done because of the limited lifespan of the device. But, for continuous and frequent switching, it is best to prioritize durability. This, of course, minimizes maintenance and downtime.

4. Surge Current Durability

Not only is durability important for its mechanical aspect, but also the surge current of your time relay. It is vital for it to be able to withstand inrush or surge currents. That said, you must compare the time relay’s surge current rating with the maximum expected inrush where it will be applied. Look for relays with a margin over your highest surge to prevent damage and maximize longevity.

5. Voltage Rating

Obviously, the relay’s voltage rating is important, so it must match or even exceed your control and load circuit requisites. You wouldn’t want mismatched voltages as they cause damage or malfunction. To ensure you are getting this right, always check the coil and contact side ratings.

6. Environment

The following environmental factors must be considered when shopping for your relay:

• دما
• رطوبت
• لرزش
• Exposure to chemicals

Here’s a pro tip: choose relays with the right IP ratings and temperature ranges to guarantee operations will be at their best in harsher or more industrial settings.

7. Isolation Midway the Control and Load Circuits

Since relays have the power to provide electrical isolation between your control and load sides, offering protection for sensitive circuits, the right ones must offer sufficient dielectric strength and insulation, especially where voltages are high.

8. Various Contacts

These multifunctional relays must also be used for multiple contacts. This steps up flexibility and the division of load across.

تایمر THC810

THC810 timer provides accurate time delay control with multifunctional settings. Suitable for industrial automation and DIN rail installation.

مشاهده محصول

TOSUNlux, A Leading Relay Manufacturer

In the industry for decades already, our company, TOSUNlux is a global leader in specializing in the manufacturing and supply of low-voltage electrical equipment, as well as lighting products.

Our extensive catalog features these رله های زمان, as well as circuit breakers, switches, stabilizers, distribution boards, contractors, panel meters, and other devices for power distribution and power control.

Meanwhile, our lighting catalog includes LED and lights of the fluorescent type for residences, commercial buildings, and industries.

Focusing on our multifunction time delay relays, we have a dedicated catalog that houses the following features:

• PC flame-retardant shell: This high-grade, flame-retardant polycarbonate enclosure prevents damage in case there is heat or fire around.
• Anti-interference high-quality chip: Helpful when resisting electrical noise via its strong chips, which ensures operations are stable in your industrial settings.
• Zero error, ultra-high precision qualities: Our relays deliver unbeatable timing accuracy that makes room for no errors, which is needed for automation and motor control.
• With LCD display: Not every equipment like this will have LCD displays for easier, clear-cut settings, as well as real-time status tracking.
• Daylight saving power: Our devices also support daylight saving capabilities for hassle-free scheduling and seasonal time changes automation.
• Backlit display: This makes way for convenient operations at night or in dark areas.
• 30A high-power silver contact relay + surge protection: This feature handles larger loads and protects against deadly lightning strikes.

We are your trusted one-stop electrical solutions partner. Our team is here for you. You can chat now with our representatives live for your inquiries.