LEYDEN LE330AT 30A 380-440VAC Three Phase Digital Timer Switch, Real Clock Based 24 ON/Off Programs/Day, Cyclic Timer 1 Sec-24 Hours ON/Off, Auto Off/ON Delay, Manual Start/Stop, DIN Rail Mount

About this item

• 1. 30A THREE PHASE DIGITAL TIMER SWITCH LEYDEN LE330AT is a 30A, 380-440VAC three phase digital timer switch designed for automatic time-based ON/OFF control of suitable electrical loads. The real clock-based timer allows multiple operating schedules for electrical panels, automation systems, agricultural applications, commercial installations and other compatible three-phase electrical applications.
• 2. REAL CLOCK BASED 24 ON/OFF PROGRAMS PER DAY Program the timer according to actual clock time with up to 24 ON/OFF programs per day. Select individual days or all seven days MO, TU, WE, TH, FR, SA, SU for flexible weekly scheduling. Ideal for applications requiring multiple automatic ON and OFF operations throughout the day.
• 3. CYCLIC TIMER 1 SECOND TO 24 HOURS The built-in cyclic timer provides repetitive ON/OFF operation from approximately 1 second to 24 hours. Set separate ON and OFF intervals according to your application. Suitable for fogger systems, hydroponic pumps, irrigation systems, ventilation and other repetitive automation applications.
• 4. AUTO OFF/ON DELAY & MANUAL START/STOP The Auto OFF/ON Delay function allows the connected load to operate for a preset time before automatically switching OFF. The MANUAL function allows convenient manual starting and stopping when required, while AUTO mode enables automatic operation according to the programmed schedule.
• 5. LCD DISPLAY, SILICON KEYPAD & DIN RAIL MOUNT Features a clear LCD display, easy-to-use silicon keypad, compact design and DIN rail mounting for convenient installation inside suitable electrical panels and distribution boards.
• 6. BUILT-IN RECHARGEABLE BATTERY BACKUP Built-in 1.2V 40mAh Ni-MH rechargeable battery backup helps retain programmed settings and clock memory during temporary power interruptions. The battery backup is intended for program and clock memory retention and is not intended to operate the connected load when the main power supply is unavailable.

PRODUCT DESCRIPTION

The LEYDEN LE330AT 30A 380-440VAC Three Phase Digital Timer Switch is a programmable digital timer designed for automatic time-based control of suitable three-phase electrical loads.

The device combines multiple timer functions in one compact DIN rail-mounted unit, including Real Clock Based ON/OFF Programming, Auto OFF/ON Delay, Cyclic ON/OFF Timer and Manual Start/Stop Operation.

The real clock-based programming function supports up to 24 ON/OFF programs per day. Users can set multiple ON and OFF schedules according to the actual clock time and select the required days of the week. For daily operation, all seven days—MO, TU, WE, TH, FR, SA, SU—can be selected.

The Cyclic ON/OFF Timer allows repetitive operation with adjustable ON and OFF intervals from approximately 1 second to 24 hours. This function can be useful for applications such as foggers, hydroponic pumps, irrigation systems, ventilation and other repetitive automation requirements.

The Auto OFF/ON Delay function can be used when a suitable connected device needs to operate for a preset duration and then automatically switch OFF. This may be useful for applications such as suitable motor applications, geysers, E-bike charging and other compatible equipment.

The Manual Start/Stop function provides convenient manual control, while AUTO mode enables automatic operation according to the programmed schedule.

The LE330AT features a 30A rating, 380-440VAC three-phase operation, LCD display, silicon keypad, compact design and DIN rail mounting.

A built-in 1.2V 40mAh Ni-MH rechargeable battery backup helps retain programmed timer settings and clock memory during temporary power interruptions.

IMPORTANT: The product must be installed by a qualified electrician or trained electrical professional. Always use suitable copper wire of the correct size, proper protective devices and secure electrical connections according to the connected load and applicable electrical standards.

MAIN FEATURES

• 30A Three Phase Digital Timer Switch
• 380-440VAC Three Phase Operation
• Real Clock Based Programming
• Up to 24 ON/OFF Programs Per Day
• Weekly Day Selection
• Daily or Selected-Day Operation
• Cyclic ON/OFF Timer
• Cyclic Timer Range: Approximately 1 Second to 24 Hours
• Auto OFF Timer Function
• Auto ON / OFF Delay Function
• Manual Start and Stop Operation
• AUTO/MANUAL Mode
• LCD Display
• Silicon Keypad
• DIN Rail Mounting
• Compact Design
• Built-in 1.2V 40mAh Ni-MH Rechargeable Battery Backup
• Retains Programmed Settings and Clock Memory During Power Interruption
• Easy Programming
• Suitable for Electrical Panel Installation

OPERATING MODES

1. REAL CLOCK BASED ON/OFF PROGRAMMING

Use this function when the connected electrical load needs to automatically switch ON and OFF at specific clock times.

Example:

• Program 1: ON at 08:00 → OFF at 12:00
• Program 2: ON at 14:00 → OFF at 18:00

The timer supports up to 24 ON/OFF programs per day.

1. AUTO OFF / ON DELAY MODE

Use this mode when the connected load needs to operate for a preset duration and then automatically switch OFF, or when delayed operation is required.

Possible applications:

• Suitable motor applications
• Geysers
• E-bike charging
• Charging systems
• Electrical equipment
• Other compatible electrical loads

1. CYCLIC ON/OFF MODE

The Cyclic ON/OFF mode repeatedly switches the connected load ON and OFF according to preset ON and OFF intervals.

Possible applications:

• Fogger systems
• Hydroponic systems
• Hydroponic pumps
• Irrigation systems
• Ventilation systems
• Repetitive automation
• Other compatible electrical applications

RECOMMENDED APPLICATIONS

The LEYDEN LE330AT may be suitable for automatic control applications such as:

• Three Phase Electrical Load Control
• Electrical Panel Automation
• Suitable Motor Control Applications
• Water Pump Automation
• Agricultural Automation
• Irrigation Systems
• Fogger Systems
• Hydroponic Systems
• Hydroponic Pump Control
• Ventilation Systems
• Lighting Automation
• Industrial Automation
• Commercial Electrical Systems
• Repetitive ON/OFF Applications
• Geyser Control
• E-bike Charging Control
• Other Compatible Electrical Loads

IMPORTANT APPLICATION NOTE

The suitability of the timer depends on the actual load type, starting current, motor rating, wiring, protection devices and installation conditions.

For motors, pumps, compressors and other high-inrush or inductive loads, use a properly rated contactor, overload relay and suitable protective devices as required by a qualified electrician.

INSTALLATION & SAFETY INSTRUCTIONS

IMPORTANT SAFETY WARNING

1. Installation must be carried out by a qualified electrician or trained electrical professional.
2. Always use good-quality copper wire for electrical connections.
3. Select the proper wire size according to the connected load and applicable electrical standards.
4. Use appropriate MCB, MCCB, fuse, overload protection and other safety devices as required.
5. Ensure all electrical terminal connections are properly tightened.
6. Do not make loose electrical connections.
7. Switch OFF the main power supply before installation, wiring, inspection or maintenance.
8. Do not touch terminals or internal components while the device is energized.
9. Keep the device protected from water, moisture and excessive humidity.
10. Do not exceed the 30A rated capacity of the device.
11. For motors and high-inrush or inductive loads, use a properly rated contactor and suitable overload protection.
12. Ensure the electrical panel has appropriate protection and ventilation.
13. Verify all wiring connections before energizing the device.
14. Incorrect wiring or improper installation may cause electric shock, fire, equipment damage or serious injury.
15. Use the device only within the specified 380-440VAC three-phase supply range and applicable installation requirements.
16. The built-in battery backup is for programmed settings and clock memory retention during power interruption and is not intended to power the connected load.

WARRANTY & DAMAGE DISCLAIMER

Warranty is applicable only against manufacturing defects, subject to the applicable warranty terms.

The following types of damage are NOT COVERED UNDER WARRANTY:

• Damage caused by water or moisture
• Burnt or damaged product due to loose electrical connections
• Damage due to incorrect wiring
• Damage caused by voltage fluctuation or abnormal voltage
• Damage caused by short circuit
• Damage caused by overload
• Damage caused by using a load higher than the rated capacity
• Damage caused by improper installation
• Damage caused by incorrect wire size
• Damage caused by electrical surge or external electrical conditions
• Physical damage caused by misuse or mishandling
• Damage caused by operation outside the specified voltage range
• Damage caused by installation or operation contrary to product instructions

IMPORTANT

Always use proper-size copper wire according to the connected load and ensure all connections are tight and secure.

Damage or burning caused by water, loose connection, voltage issues, short circuit, overload or use of a load higher than the rated capacity is not covered under warranty.

WHAT'S IN THE BOX

• 1 × LEYDEN LE330AT 30A 380-440VAC Three Phase Digital Timer Switch
• 1 × User Instruction / Programming Guide