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Md Jony Islam Author
Md Jony Islam
CalculatorToolsProjectExpert
Reviewers
Małgorzata Koperska, MD Steven Wooding
Last updated: January 14, 2026

Street Light Control with Timer Wiring Diagram for Automatic Operation

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3 Phase TP MCB 32A

3 Phase TP MCB 32A

Triple Pole Miniature Circuit Breaker

10A SP MCB

10A SP MCB

Single Pole Miniature Circuit Breaker, 10 Amp

Single Phase Contactor

Single Phase Contactor

Electromagnetic switch designed for controlling single-phase electrical loads

Single Phase Timer 8-Pin

Single Phase Timer 8-Pin

Time Range: 60 Seconds, only work for 60S, not for 30S or 10S.

Single phase security Light

Single Phase Security Light

Energy-efficient Security light for single-phase supply

Single Phase 2-Position Selector Switch

Single Phase 2-Position Selector Switch

Three-phase electric motor with 2 horsepower

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

street light control with timer wiring diagram

Learn street light control wiring with a timer for automatic ON/OFF, energy saving, and secure operation of public lighting systems.

street light control timer wiring

Street lights timer enabled control enables automatic switching of ON and OFF of the lights with a timer relay or programmable digital timer system that saves energy and the street lights boost the safety of the people with limited manual intervention.

Formula & Table Summary:

Components: Two SPDT switches, motor, power supply (live, neutral, ground), traveler wires.
Connections: Live supply connects to common terminal of Switch 1; traveler wires connect Switch 1 and Switch 2; Switch 2 common terminal connects to motor supply.
Operation: Toggling either switch changes the motor supply state (ON/OFF).
Safety: Ensure proper grounding and use circuit protection devices.

Terminal Connection Function
Switch 1 Common (C1) Connects to Live supply Power input
Switch 1 Travelers (T1, T2) Connect to Switch 2 travelers Switching paths
Switch 2 Common (C2) Connects to Motor Live input Power output
Motor Neutral Connects to Neutral line Completes circuit
Earth (Ground) Connects to Motor Frame Safety grounding

two way switch installation motor

The method of wiring the motor, where two way switch is used, allows using two different locations to start and stop the motor. It comes in particular handy on motors which are located somewhere such as a workshop or on a conveyor system where there is a requirement to be able to turn the motor ON and OFF conveniently at various locations. This wiring has two SPDT switches in either 3 or 4 wire buss which are connected as traveler wires to complete the supply line to the motor starter or direct motor load. The motor is used with a distribution of neutral and ground wires to be safe. Such arrangement makes motor control less complicated and does not require complex relays or timers and improves user convenience and safety of operation.

electrical motor two way switch

Switch 1 Position Switch 2 Position Motor Status
Up Up OFF
Up Down ON
Down Up ON
Down Down OFF

Frequently Asked Questions - street light control with timer wiring diagram:

What is street light timer control?

A system to automatically switch street lights ON and OFF using a timer.

Which timer is used?

Either electromechanical or digital programmable timer.

Is a contactor required?

Yes, to safely switch high-power street light loads.

Can I manually control lights?

Yes, optional manual override switch can be installed.

What supply voltage is used?

Single-phase AC, typically 230/240V.

Is earthing necessary?

Yes, for safety of lights, timer, and contactor.

Can the timer be programmed for seasonal changes?

Yes, schedules can be adjusted for daylight variations.

Does it save electricity?

Yes, lights operate only during required periods.

What protection devices are needed?

MCB, fuses, or overload protection according to load rating.

Why follow the wiring diagram?

Ensures safe, reliable, and energy-efficient operation.

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Md Jony Islam

Md Jony Islam

Calculator Tools Project

Founder of Earthbondhon.com

a free online tools website designed to make everyday and engineering-related calculations easier for students, professionals, and hobbyists. The site offers a wide range of basic calculators across key categories, including Electrical Calculators, Electronic Calculators, and Time & Date Calculators.