538 SERIES

PANEL INDICATOR LED

Toorderpleasecontactuson+44(0)1229582430

Q05480

DSN538Version2014-09-25-092900. Page2of2

TECHNICAL CHARACTERISTICS

Series

Max.Power

Dissipation

PanelCutout

NutMounting

Torque

Min.Mounting

Centres

Min.-Max.Panel

Thickness

538

825

12.7

1.0

26.0

2.0-10.0

mW

mm

Nm

mm

mm

TECHNICAL DRAWING

Weight(g):8.6

Dimensionsinmm(typical).Nottoscale.Mountingholetobecleanandburrfree.

3

29

6

3

29

5

12.7

+ 0.3

0

Mounting Hole

Below 50Vac/dc

Above 50Vac/dc

PUSH ON CONNECTOR

14.5

925-000-00isbrasstinplated-forusewith538series

lamps. Dimensionsinmm(typical). Nottoscale.

DE-RATING GRAPHS

MATERIALS

50

40

30

20

10

0

020

40

60

80

100

Ambient Temperature Ta (°C)

Red / Green / Blue / Cool White LED

50

40

30

20

10

0

020

40

60

80

100

Ambient Temperature Ta (°C)

Yellow LED

Body

StainlessSteelGrade303

Nut

StainlessSteelGrade303

PanelSeal

Viton

Lens

Polycarbonate

Encapsulation

BlackPolyurethane

LockWasher

StainlessSteel

Termination

SilverFlashCoatedBrass

Header

Nylon66A82

DESIGN CONSIDERATIONS

Electro-StaticDischarge(ESD)

Buildupofelectro-staticdischargeoccursinmanysituations

involvingpeoplemovingandhandlingproducts.Therange

of possible situations is very diverse but voltage levels as

high as several thousand volts can and do arise in many

individualsituations.Whenanoperatorchargeduptothese

levels handles a static sensitive device, there is a very

probable likelihood that the device will be irreversibly

damaged. It is essential that precautions are taken at all

stagesduringmanufactureandassemblyoftheseproducts.

AlthoughLEDswereneverconsideredtobestaticsensitive

devices, changes in manufacturing technology and

materialsusedtoproducehigherintensityproductsovera

largerangeofthewavelengthspectrumhavechangedthis.

Marl has an approved system of ESD control from goods

in,throughproductionandintofinalpackinganddespatch.

MarlrecommendallusersofLEDbasedproductsfollowthe

guidelinesofBS100015.

Voltage,CurrentandTemperature

Theforwardvoltage/currentvalueofanLEDisdependent

upontheambienttemperatureoftheenvironmentinwhich

itisoperated.Therefore,caremustbetakentooperatethe

LEDatthecorrectvoltage/currentvalues,dependingupon

theambienttemperature.

Marl should be contacted if the device is to be operated

outside the temperature range specified. Marl accept no

liability for any product that is operated outside the stated

voltageortemperaturerange.

marlleds marlinternationallimited company/marl-international-limited