DSL Indicating Lamp

DSL Busbar Indicator Lamp for EOT Cranes.

Indicating Lamps activate when 3 Phase power is applied to your overhead EOT crane.
Extremely Easy to install
Very Easy Maintenance

3 Phase DSL Indicating Lamps Made in India.

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Indicating Lamps Built for the harshest of environments

Display Distance of more than 200 Meters

DSL Indicating lamps are used in factories where DSL busbars are installed to know when 3 Phase power is applied to the crane. DSL Indicating Lamp take 3 phase power as input and emit three colours in the visible spectrum- Red,Yellow and Blue. They act like a status indicator for the presence or absence of the 3 phase input power. The intensity of the light reduces or increases with the change in 3 phase input voltage. In the situation where , 1 phase is not available or phase failure, the light for that particular phase will switch off .

During malfunctioning of crane or maintenance operations of crane, the DSL indicating lamp will indicate to everyone on the factory floor whether the power is present or absent.

Anand Systems engineering DSL indicating Lamp can be easily installed by anyone with the help of 4 screws. Anand Systems engineering DSL indicating Lamp is constructed with extremely high quality and long lasting Light emitting Diodes. These LEDs do not require a heat sink .

Installation of 3 Phase DSL Indicating Lamp:

3 phase voltage display unit can be easily installed by anyone with the help of 4 screws. It is constructed with extremely high quality long lasting LEDs and powder coated metal body.

When Correct Three phase voltage is applied , all three indicating lamps light up and get illuminated.

DSL Indicating Lamp working

When one of the three phase voltages is not present,only two indicating lamps light up.

3 Phase Fault Condition

Individual Indicating Lamp

Each Individual Lamp of the DSL Indicating Lamp is made up of 3 Parts.

Transparent Polycarbonate Cover.
Electronic Circuit with Leds
Bottom ABS plastic Circuit Base


Individual PCB with LED


General Assembly Drawing

A General Assembly Drawing can be used as a reference for installation and estimation product dimensions.


3 phase DSL Indicating Lamp kit:

Complete product kit Includes

3 Indicating Lamps - Red,Blue & Green

Each Individual Lamp indicates presence of 3 phase voltage.

External Connector for connecting 3 Phase Power

Screwless Connector for Input 3 Phase Supply. No need of Neutral connection.

Black powder coated MS base Plate

A very well built metal frame for Industrial environments

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Relative Wavelength vs Intensity for each Individual colour

*Wavelength value is traceable to CIE127-2007 standards







Spatial Distribution


Specifications of DSL Indicating Lamp

Electrical Specifications
Input Power Supply

3-phase without Neutral , 415V

Power Consumption

Power Consumption = 0.3 Watts

Minimum Input Voltage 385 VAC
Maximum Input Voltage 440 VAC
Typical Input Voltage 415 VAC
Power Supply Uses Step Down Isolation transformers to achieve galvanic isolation for safe installation,safe operation and safe maintenance.
LED Specifications
Colors Hyper Red, Super Bright Yellow, Hyper Blue
Visibility 300 Meters
Leds per Colour : 12 Bright Leds
Viewing angle 40 Degrees
Led material AlGaInP on GaAs substrate Light Emitting Diode for Red and Yellow & InGaN for Blue
Typical MCD 3000
RoHS Compliant yes
Body 2mm CRCA with black color Powder coating
Product Dimensions :100mm x 200mm
Installation indoor/outdoor
Life Expectancy 5 Years
Operating Temperature -25 to +85 C
PCB Dimension 60 mm
Product weight 800 grams

*Anand systems engineering does not provide dangerous transformerless capacitive power supply with any of its products.
*Excess operating temperature higher than recommended conditions may result in severe light degradation or premature failure.