Wednesday, 23 January 2013

Colour Significance of Miniature LED Indicators



SL NO COLOUR MEANING DESCRIPTION OPERATOR ACTION
1 RED Emergency situation Dangerous condition Immediate action to respond to a dangerous condition (e.g. by pressing emergency stop)
2 YELLOW Abnormal condition Abnormal condition; anticipated critical condition Monitoring and/or intervention (e.g. by restoring the intended function)
3 GREEN Normal condition Normal condition Optional
4 BLUE Mandatory action Indication of a condition requiring operator intervention Mandatory action
5 WHITE Neutral Other conditions; may be used if there is uncertainty about the appropriateness of RED, YELLOW, GREEN or BLUE Monitor

Friday, 18 January 2013

Performance of Werner LED Light Bars


PERFORMANCE
WERNER LED BAR INPUT CURRENT POWER CONSUMED LED's ILLUMINANCE
30.20.69.** 30 mA 0.8 W 12 225 lx
30.40.69.** 60 mA 1.6 W 24 450 lx
30.60.69.** 90 mA 2.4 W 36 675 lx
30.80.69.** 120 mA 3.2 W 48 900 lx
30.100.69.** 150 mA 4 W 60 1125 lx
DIFFERENT VOLTAGES [12, 24 & 48 V ACDC] IN THE RANGE

Benifits of LED's over CFL and Incandiscent Bulbs


ENERGY EFFICIENCY AND ENERGY COST LED LIGHTS INCANDESCENT LIGHT BULBS CFLS
AVERAGE LIFE SPAN UP TO 50,000 hours 1,200 hours 8,000 hours
WATTS OF ELECTRICITY USED (based on 60w incandescent bulb) 6 watts 60 watts 13-15 watts
KILO-WATTS OF ELECTRICITY USED (based on 30 x 60watt incandescent bulbs per year) 329KWh/year 3285 KWh/year 767 KWh/year
ENVIRONMENTAL IMPACT LED LIGHT INCANDESCENT LIGHT BULB CFL
CONTAINS MERCURY No No Yes
ROHS COMPLIANT Yes Yes No
CARBON DIOXIDE EMMISONS (30 bulbs per year) 206 kgs/year 2057 kgs/year 481 kgs/year
IMPORTANT FACTS LEDS INCANDESCENT LIGHT BULBS CFLS
SENSITIVE TO LOW TEMPS No Some Yes
SENSITIVE TO HUMIDITY No Some Yes
ON/OFF CYCLING no adverse effects some adverse effects yes – drastically reduces lifespan
INSTANT LIGHT STRIKE yes yes no – needs to warm up
DURABILITY very durable not very durable not very durable
LIGHT OUTPUT LEDS INCADESCENT LIGHT BULBS CFL
LUMENS watts watts watts
450 4 – 5 40 9 – 13
800 6 – 8 60 13 – 15
1100 9 – 13 75 18 – 25
1600 16 – 20 100 23 – 30
2600 25 – 28 150 30 – 55

Thursday, 10 January 2013

Contact Ratings of Contact Blocks


Contact Ratings of Contact Blocks
RATED INSULATION VOLTAGE 250 VOLTS - - -
RATED THERMAL CURRENT 5 AMPS - - -
OPERATING VOLTAGE [AC/DC] 12 V 24 V 110 V 220 V
AC 50/60 HZ RESISTIVE LOAD 1 A 0.7 A
INDUCTIVE LOAD 0.9 A 0.7 A
DC RESISTIVE LOAD 1 A 1 A 0.3 A
INDUCTIVE LOAD 0.9 A 0.9 A 0.7 A
CONTACT MATERIAL GOLD PLATED SILVER

Wednesday, 9 January 2013

WERNER CONTACTORS APPLICATION FOR DIFFERENT POWER RATINGS

WERNER TYPE Rated OPERATIONAL CURRENT RATED OPERATIONAL POWER
AC – 3 AC – 1 220/240 V 380/400 V 415/440 V 500 V 660/690 V 1000 V
53.10.009.01.--- 9 AMPS 20/25 AMPS 2.2 KW 4 KW 4KW 5.5 KW 5.5 KW ~
53.10.009.10.---
53.10.012.01.--- 12 AMPS 20/25 AMPS 3 KW 5.5 KW 5.5 KW 7.5 KW 7.5 KW ~
53.10.012.10.---
53.10.018.01.--- 18 AMPS 25/32 AMPS 4 KW 7.5 KW 9 KW 10 KW 10 KW ~
53.10.018.10.---
53.10.025.01.--- 25 AMPS 32/40 AMPS 5.5 KW 11 KW 11 KW 15 KW 15 KW ~
53.10.025.10.---
53.10.032.01.--- 32 AMPS 50 AMPS 7.5 KW 15 KW 15 KW 18.5 KW 18.5 KW ~
53.10.032.10.---
53.10.038.01.--- 38 AMPS 50 AMPS 9 KW 18.5 KW 18.5 KW 18.5 KW 18.5 KW ~
53.10.038.10.---
53.10.040.11.--- 40 AMPS 60 AMPS 11 KW 18.5 KW 22 KW 22 KW 30 KW ~
53.10.050.11.--- 50 AMPS 80 AMPS 15 KW 22 KW 25/30 KW 30 KW 33 KW ~
53.10.065.11.--- 65 AMPS 80 AMPS 18.5 KW 30 KW 37 KW 37 KW 37 KW ~
53.10.080.11.--- 80 AMPS 125 AMPS 22 KW 37 KW 45 KW 55 KW 45 KW 45 KW
53.10.095.11.--- 95 AMPS 125 AMPS 25 KW 45 KW 45 KW 55 KW 45 KW 45 KW
53.10.115.11.--- 115 AMPS 200 AMPS 30 KW 55 KW 59 KW 75 KW 80 KW 75 KW
53.10.150.11.--- 150 AMPS 200 AMPS 40 KW 75 KW 80 KW 90 KW 100 KW 90 KW

Sunday, 6 January 2013

MCB SELECTION CHART

SL NOAPPLIANCESAPPROX WATTS @ 240V AC, 1 ØRATING [AMPS]TYPE
1 AIR-CONDITIONERS 0.5 TON [775 WATTS] 6 C
2 AIR-CONDITIONERS 0.75 - 1.0 TON [1.2 - 1.5 KILO WATTS] 10 C
3 AIR-CONDITIONERS 1.5 TONS [2.5 KILO WATTS] 16 C
4 AIR-CONDITIONERS 2.0 TONS SPLIT UNIT [3.5 KILO WATTS] 20 C
5 REFRIGERATOR 165 - 285 LTRS 2 C
6 REFRIGERATOR 400 LTRS 4 C
7 REFRIGERATOR 580 LTRS 6 C
8 WASHING MACHINE 300 WATTS 2 C
9 WASHING MACHINE 1300 - 1800 WATTS [WITH HEATER] 10 C
10 WASHING MACHINE 2200 WATTS [WITH HEATER] 16 C
11 DOMESTIC PUMP SET 0.5 HP 6 C
12 DOMESTIC PUMP SET 1.0 HP 10 C
13 DOMESTIC PUMP SET 2.0 HP 16 C
14 WATER HEATER 1.0 KILO WATT 6 B
15 WATER HEATER 2.0 KILO WATT 10 B
16 GEYSERS 3.0 KILO WATT 16 B
17 GEYSERS 6.0 KILO WATT 32 B
18 COOKING RANGE 4500 WATTS 25 B
19 IRON 750 WATTS 6 B
20 IRON 1250 WATTS 10 B
21 HOT PLATE 2000 WATTS 10 B
22 OVEN 750 WATTS 6 B
23 MICRO WAVE OVEN 1000 WATTS 6 C
24 AUTO TOASTER 1200 WATTS 10 B
25 ROOM HEATER 1000 WATTS 6 B
26 ROOM HEATER 2000 WATTS 10 B
27 ELECTRIC KETTLE 1500 WATTS 10 B

Tuesday, 18 December 2012

IEC Colour Coding



SL NOCOLOURMEANINGDESCRIPTIONEXAMPLES OF APPLICATION
1 RED STOP Emergency situations For stopping during emergency conditions
2 YELLOW/
AMBER
OBNORMAL Obnormal situations Intervention to resume an interrupted automatic sequence
3 GREEN START Normal situations Actuate to initiate normal conditions
4 BLUE RE-SETTING Mandatory situations Resetting the process functions
5 WHITE NEUTRAL Monitoring actions Monitor the process functions
6 BLACK ALTERNATING Alternate functions Special alternating process functions