#digital programable timer switch (multiple output)

[enzaelectric]

The Role of Relays and Timers in Industrial Automation Systems

In the world of industrial automation, efficiency, safety, and precision are crucial. Among the many components that contribute to a well-functioning automated system, relays and timers play a foundational role. These devices act as control elements that manage the flow of electricity, signal processes, and coordinate timing sequences — ensuring that operations run smoothly and safely.

In this article, we’ll explore how relays and timers work, their types, applications in automation systems, and how high-quality products — like those offered by Enza Electric — can enhance performance and reliability in industrial settings.

What Are Relays?

A relay is an electromechanical or electronic switch used to control a circuit by a separate low-power signal or multiple signals. In industrial automation, relays act as a bridge between the control system and the equipment being operated — allowing machines to be turned on or off automatically.

Types of Relays Commonly Used in Automation:

Electromechanical Relays (EMRs): Use physical moving parts; reliable and easy to maintain.

Solid-State Relays (SSRs): No moving parts; faster switching, longer lifespan, and better for high-speed applications.

Thermal Overload Relays: Protect motors and equipment from overheating.

Control Relays: Designed for controlling multiple contacts simultaneously in automation systems.

What Are Timers?

Timers are devices used to delay or repeat electrical signals at predetermined intervals. They help synchronize tasks, automate sequences, and provide controlled outputs over time — critical for complex industrial processes.

Common Timer Functions:

On-delay and off-delay timing

Interval timing

Cyclic or repeat cycle operation

Flashing and sequencing operations

Types of Timers:

Analog Timers: Manual dial settings, simple and cost-effective.

Digital Timers: Offer precise programming, displays, and flexible timing ranges.

Programmable Timers: Ideal for complex automation routines requiring multiple sequences.

Key Roles in Industrial Automation Systems

1. Process Control and Sequencing

Relays and timers enable automated machines to follow a specific sequence — turning motors, lights, or pumps on and off in a logical order. For example, a conveyor system can use a relay-timer combination to control material flow with millisecond precision.

2. Safety and Protection

Relays protect systems by interrupting circuits in case of faults. Combined with timers, they can ensure delay before activating emergency stop functions, preventing false triggers and increasing worker safety.

3. Load Management

In high-demand industrial environments, relays help manage load distribution by selectively energizing or de-energizing machinery. Timers assist in staggered starts, reducing power surges.

4. Energy Efficiency

By automating start/stop functions and managing operation durations, timers help reduce unnecessary energy use. Relays ensure only the necessary loads are powered, minimizing wastage.

5. System Monitoring and Feedback

In smart automation, relays provide feedback signals to the control system. Timers assist with diagnostics by creating intervals for testing or data collection.

Benefits of Using High-Quality Relays and Timers

Choosing the right components significantly impacts system performance and longevity. Enza Electric’s relays and timers are engineered with:

High durability for tough industrial environments

Precision timing for reliable operation

Easy installation and compact designs

Compliance with international safety and quality standards

By integrating Enza’s low-voltage solutions, businesses in the GCC, MENA, and Africa regions benefit from cost-effective, scalable automation that supports both current needs and future expansion.

Common Applications in Industrial Sectors

Manufacturing Plants: Control of motors, robotic arms, and production lines.

HVAC Systems: Timed control of fans, compressors, and dampers.

Water Treatment Facilities: Sequenced operation of pumps and valves.

Packaging Machinery: Relay and timer-based coordination of packing, sealing, and labeling.

Food and Beverage Industry: Process automation with hygiene-compliant controls.

Final Thoughts

Relays and timers are the silent operators behind the success of industrial automation systems. From process optimization to enhanced safety and energy management, these components are indispensable.

When sourced from a trusted manufacturer like Enza Electric, businesses are not only investing in reliable hardware but also in the longevity, scalability, and safety of their entire operation.

Ready to Power Your Automation?

Explore Enza Electric’s wide range of relays, timers, and other low-voltage switchgear solutions designed to meet the evolving demands of modern industries. Visit www.enzaelectric.com to learn more or request a quote today.

[huimultd-solid-state-relays]

KG316T Series (Multiple Output) Digital Programable Timer Switch (Multiple Output)

Introduction

 KG316T series timer switch can automatically turn on or off the power of various electrical equipment according to the time set by the user. KG316T series digital time-controlled switch is consisted of digital LCD display, programmable IC chip, buttons, switching components and etc. KG316T series microcomputer timer switch is widely used in street lights, neon lights, advertising signs, production equipment, assembly lines, and broadcast equipment. The new version KG316T adopts a brand-new chip technology, which can effectively avoid the false welding and missing welding. Besides, the all-new designed KG316T has the characteristics of stable performance, low power consumption, light weight, and replaceable power supply battery. KG316T series multiple outputs type timer switch has multiple sets of independent output terminals, which can efficiently control multiple loads without interfering with each other. KG316T series multiple output timer switch is suitable for equipment that has limited installation space but needs to control multiple loads. KG316T (multiple output) has two sub-series, KG316T-2a can control the working status of two independent loads, and KG316T-3a can control the working status of three independent loads.

Parameters

KG316T (Multiple Output)

Timer Range: 1min≤t≤168h (cycle work daily or weekly) Operation Voltage: AC220V/50Hz (or other customized voltage) Operation Temperature: -10℃~ 50℃ Operation Humidity:<95% Switching Capacity: 10A per output (resistive load) Number of Outputs: KG316T-2a (max two outputs), KG316T-3a (max three outputs); Each output is independent of each other and does not interfere with each other. Number of Settings: 16 groups per output, with anti-mistouch button lock Control Mode: Manual, Auto Consumption Power: ≤4W Battery: 5AA battery Time Error: ≤2s/day (25℃) Weight: 450g Dimensions: 120×74×58mm Mounting: Wall/Rail

Dimensions & Wiring Diagram

KG316T (Multiple Output)

1 Direct control method (as shown in Figure 1) Applicable objects: Loads with single-phase power supply, and the power consumption does not exceed the rated switching capacity of the timer switch. 2 Single-phase expansion method (as shown in Figure 2) Applicable objects: load with single-phase power supply, but the power consumption exceeds the rated switching capacity of the timer switch. This method should be adopted for inductive loads. If this wiring method is adopted, the output terminal of the digital timer switch needs to be connected to a single phase AC contactor whose switching capacity should larger than the power consumption of the load to expanse the switching capacity of the timer switch. For example, Figure 2.1 shows how to expand the switching capacity of OUT2 of KG316T-2a, and Figure 2.2 shows how to expand the switching capacity of OUT3 of KG316T-3a. *Note: Each load of this product and the power supply share a neutral line. Please make sure not to connect it wrongly when wiring.

KG316T (multiple output) dimensions and wiring diagram

Instructions For Use (How to set)

Please make sure that you have understood the functions of all the buttons on the panel (button area), and perform the actual operation according to the instructions.

1 Description of buttons and indicators

CLOCK (): Press to display your local time (it should be set by yourself: you can press and hold the "CLOCK" key to enter the "Time Adjustment Mode", and adjust the "WEEK", "HOUR", and "MINUTE" key to set the local time). PS: If no operation is performed within 30 seconds, the timer switch will automatically display the local time. TIMER(): Press to enter the "Editing Mode", and then set the time to switch the load by adjusting the "WEEK", "HOUR", and "MINUTE" key. WEEK (D+): Adjust week or day. There are various working modes, such as "Five-day Mode" (Monday to Friday), "Six-day Mode" (Monday to Saturday), "Weekend Mode" (Saturday, Sunday), "Daily Mode" (Monday to Sunday), and "Three-day Mode" (Mon-Wed-Fri; Tue-Thu-Sat; Mon-Tue-Wed; Thu-Fri-Sat). HOUR (H+): Adjust hour. MINUTE (M+): Adjust minute. AUTO/MANU (MANUAL): Switch the three switching mode of "ON", "AUTO" and "OFF". For multiple-output timer switches, the output combination can be configured through the "AUTO/MANU" key when in the "Editing Mode" RESET/RECALL (Cancel/Restore, C/R): Press to cancel or restore the timing setting. PS: For products with button lock function, press the " RESET/RECALL " key four times to lock or unlock all buttons. C: Long press the "C" key to clear all settings of the timer switch. POWER LED: When the Power LED (red) is on, it means that the timer switch has been successfully connected to the power source. WORK LED: When the Power LED (red) and the Work LED (green) are on at the same time, it means that the load is powered on.

2 Operating instructionsStep 1. Timing setting (on)

Press the " TIMER " button to enter the "Editing Mode". At this time, the "1ON" symbol will appear at the bottom left of the LCD screen (that is, the first time to turn on the load, as shown in Figure 3), and then press the "WEEK" to select Working Mode, and then press the "HOUR" and "MINUTE" keys to input the required switching on time.

Step 2. Timing setting (off)

Press the " TIMER " button again, the "1OFF" symbol will appear at the bottom left of the LCD screen (that is, the first time to turn off the load, as shown in Figure 4), and then press the "WEEK" to select Working Mode, and then press the "HOUR" and "MINUTE" keys to input the required switching off time. At this time, the first group of timing setting has been completed.

Timing Setting1

Step 3. Timing setting (output combination)

For multiple-output timer switches, the output combination can be configured through the "AUTO/MANU" key when in the "Editing Mode" (as shown in Figure 7). KG316T-2a has three output combinations (OUT1, OUT2, OUT1-OUT2); KG316T-3a has six output combinations (OUT1, OUT2, OUT3, OUT1-OUT2, OUT1-OUT3, OUT1-OUT2-OUT3, OUT2-OUT3). Take KG316T-3a as an example. If you want LOAD 2 to turn on at 10 o'clock AM, you can set it according to Figure 8; if you want LOAD1 and LOAD 3 to turn off at 6 o'clock PM, you can set it according to Figure 9.

Timing Setting2

Step 4. Timing setting (number of groups)

After completing the first group of timing setting, press the "TIMER" button again, the LCD display will show the "2ON" symbol, and you can set the second set of time setting. According to actual needs, you can repeat steps 1 to 3 to set many groups (the maximum programmable group number depends on the product's built-in chip). If you want to exit the "Editing Mode", you can press the "CLOCK" key to exit it.

Step 5. RESET/RECALL

After setting a group of time, for example, turn on the LOAD1 at 18:30 every day (Figure 5), and turn off the LOAD1 at 23:20 every day (Figure 6). If you want to cancel this group, you can press the "RESET/RECALL" button to delete this group of time settings. At this time, the group of time will be reset to the initial state, that is, "--: --" (Figure 3 and Figure 4). Under certain conditions (without any key operation or switching to other interfaces within 20 seconds after cancel operation), just press the "RESET/RECALL" button again to restore this group of time settings.

Step 6. AUTO/MANU

The timer switch has two switching modes: automatic and manual. In the automatic mode, the timer switch will be set according to the timing of steps 1 to 4, and the load will be automatically turned on or off at the corresponding time without human intervention. In manual mode, the load must be turned on or off by manual adjustment. The specific operations are as follows: 1) If you need to turn on the load manually, you can click the "AUTO/MANU" button to switch the "▼" symbol on the display to the "ON" position (Figure 10). At this time, the load will always be in the on state and cannot be turned off automatically. 2) If you need to turn off the load manually, you can click the "AUTO/MANU" button to switch the "▼" symbol on the display to the "OFF" position (Figure 11). At this time, the load will always be in the off state and cannot be turned on automatically. 3) If you need to switch the load automatically, you can click the "AUTO/MANU" button to switch the "▼" symbol on the display to the "AUTO" position (Figure 12). At this time, the working state of the load will be switching automatically according to the timing setting, without being interfered by humans.

Timing Setting3

Step 7. Lock and unlock

For the timer switch with button lock (or keyboard lock), you can quick press the "RESET/RECALL" key four times to lock or unlock all the buttons. -How to lock the buttons? In the unlocked state, quick press the "RESET/RECALL" button four times or without any operation within 30 seconds to lock all the buttons (Figure 13). At this time, there will be a "∂" symbol in the bottom left, and you cannot make any settings for the timer switch. -How to unlock buttons? In the locked state, quick press the "RESET/RECALL" button four times to unlock all the buttons (Figure 14), and you can make settings at this time.

When you think there is a fault (FAQs)

Note: When the product fails, please disconnect the power first, and then check the equipment! 1 Check the week If the timer switch does not turn on or turn off the load at the set time, it may be that the "WEEK" is not adjusted correctly, please check or reset it according to the method introduced in "Timing Setting". 2 Check the time groups If the first point is confirmed to be correct, but the load still cannot be switched correctly on time, the reason will be that the extra time group has not been cancelled. Please refer to the method introduced in "Timing Setting" to delete it. PS: Only when the display shows "--: --", it means the time group is deleted successful; if it displays "00:00", it means 0 o'clock (24 o'clock), not the deleting success. 3 Check the switching mode If the above two points are confirmed to be correct, but the timer switch still does not work normally, it may be that the timer switch is working in "Manual Mode". You can first adjust the "AUTO/MANU" key to set the timer switch to the right working state of the load (ON or OFF), then switch to the "Automatic Mode". 4 Check the fuse If the above three points are correct and the timer switch still cannot work normally, please open the rear seat insurance cover (terminal cover) and check whether the fuse has been blown. If it is blown, please replace with a new 0.1A~0.3A fuse. 5 Check the power supply If the Work LED (or Output LED) is on when the timer switch is working, but the load cannot be switched normally, please check whether the voltage of the power supply is too low. If the timer switch is burned out, please check whether the power supply voltage exceeds the rated voltage of the product and whether the power cable is connected incorrectly. 6 Please replace the battery If the LCD screen does not display or the display is not clear, replace the battery with the same specification. (Only for timer switch with replaceable batteries) 7 Please contact us or local distributor If the fault cannot be eliminated by the above methods, please contact us or the distributor (dealer) in your local area.

Attentions

1 For those equipment (such as medical equipment and large equipment, etc.) that may cause life safety accidents or cause major harm to society due to the error of the timer switch, please do not choose this timer switch. 2 For those equipment (large heaters or cold storage, etc.) that may cause major property losses due to the error of the timer switch, ensure that there is sufficient design margin when using this timer switch, and take safeguard measures such as the double protection circuit. 3 Do not repair, disassemble or modify this timer switch by yourself. If you need to repair and check it, please be sure to entrust a dealership or other authorized unit. 4 Do not touch any terminal on the timer switch after it powered on. 5 This timer switch cannot work in humid, corrosive and high metal content gas environment. And do not let the timer switch come into contact with oil or water.