World-class Timer Relay Manufacturer From China

LETOP Timer relays have a full timing ranges from less than 1 second to many days. There are many choices of timing adjustments from calibrated external knobs, DIP switches, thumbwheel switches, or recessed potentiometers.

The advantage of timer relay

Featured Timer Relay

Protection Relay

ST3P time delay relay

Multifunction Timer Relay

LETOP Multifunction Timer Relay can be set between 0.1 seconds and 300 hours and has an output voltage 12Vdc, 24Vdc,110Vac, and 220Vac or a wide range. It is a plug-in device that is quick and easy to install without the need for tools. It also offers a sealable cover, and simple and precise settings with rotary trimmers.

Modular Timer Relay

LETOP Modular Timer Relay can be set between 0.1 seconds and 100 hours. It provides multi-functions and it is mountable on DIN rail. This modular multi-function timing relay is ideal for providing timing control in automation systems such as automatic door opening, alarm, lighting in toilets, and car park barriers.

LETOP Protective relays are one of the critical components of the electrical power grid that serve to detect defective equipment or other dangerous or intolerable conditions and can either initiate or permit switching or simply provide an alarm to provide a safer, more reliable delivery system.

Floatless Relay

LETOP floatless relays are level controllers that detect water levels based on the conductivity of the medium measured by using conductive electrodes. When a relay senses the liquid level measured, the output contacts of the relay are energized and latched.

Steps to Customize the Timer Relay

Collect Needs

Defining your product requirements and let’s talk about the feasibility. We’ll assess the feasibility of product development to meet your needs.

Feasibility Assessment

The production and development of your software, mechanics, electrical engineering, product design, and construction requirements.

R & D Testing

Over 30 perfect testing equipment in our internal R & D lab to ensure the best performance of the products, and more than 26 test items including the Product performance test.

Mass Production

Production with 100% final testing and controlling defective products within 2%-5%, that is we always insist on the two basic quality requirements.

Constant Improvement

Analysis and improve solutions will be provided based on your market,we will improve and develop the product according to your feedback and suggestions.

Customize Timer Relay for Your Project

With Your Logo, Contact, and Company Information


LETOP provides timer relay with socket mounted, modular timer relay, floatless relay, protection relay.


The timer relay included ON-delay, OFF-delay, Flicker, Interval Operation, etc.

Time Range

A wide variety time range for your selection 0-99 seconds, 0-999 minutes, 0-300 hours, etc.

Mounting type

Different types of timer relays correspond to different installation methods: socket mounted, Din rail mounted, panel mounted

Supply Voltage

LETOP has more other voltages to choose from 12VDC, 24VDC, 12V-48VDC, 110VAC, 110-250VAC, 12-250VAC/DC... etc.


LETOP timer relays offer flexibility and performance for process control and industrial building applications including Power Supplies, Lighting Control, Automation, HVAC & Refrigeration, Packaging, Material Handling, etc.

Timer Relay Manufacturer

Letop offers a wide range of timer relay to operate the electric equipment as needed to on and off at specific times or time intervals. Automate your electrical devices easily with the Letop timer relay.


Up to 2022, we have established 16 production lines in our assembly department for assembling various timer relay. Our products are not only selling well in the domestic market but also exported to more than 42 countries and regions like Europe, South East Asia, Japan, South America, etc.

Our Client Factory Tour

ALION provide customized time & light control services, change product to your own designed logo, labeling and packaging or develop new products, which are the process work we are already familiar with. Additionally to our standard time switch products, we offer custom made products according to your specifications – from idea generation to final serial production.

Timer Relay Manufacturer FAQ

From concept to shipping, letopcn provides high quality and fast shipping to ensure timely delivery.

The warranty period is 24 months from the goods leaving our warehouse. In warranty period, all of the defective products can returned to the factory to be repaired or be replaced.

We offer the free sample, you only need to pay the freight. One reference is up to 2 pcs, the total quantity is no more than 6 pcs. You can also place a sample order if you exceed the quantity.

MOQ is 500units, the packaging will be Laser printing; Labels and manuals put your logo by printers; White innerbox and universal cartons.
MOQ is 1,000units, we will be based on your artworks included the production of labels and inner box.
If need to develop products or improve product performance, the MOQ is 2,000units in the first order. Please submit your requirement to contact us.

This depends on the products. The standard time products are delivered within 5-20 days. The delivery time of the special products is according to the time of completing the products.

Our standard payment term is 30% T/T deposit, 70% balance Before the shipment.

Yes, we’re excited to help inspectors to complete the inspection work.

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