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Energy distribution 2013 Technical Handbook 2013

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  • Energydistribution

    2013

    Tech

    nic

    al H

    and

    bo

    ok

    20

    13

  • The partner for smartsolutions you can trust

    New ideas for thecustomer s benefit

    A flourishing group

    www.hager.co.in

    Hager: a brand exceeding your expectations

    1

    Hager is a full-range supplier of electrical installation systems for building, residential and commercial properties. For decades, Hager has been synonymous with an extensive and complete offering. Highest quality, cutting-edge products, modularity, ease of installation, ease of use, excellent service and sophisticated design are the features that distinguish Hager.

    Innovations and the systematic enhancement of the products and systems are key features of the Hager brand. It has always been our goal to use new designs and improvements to stay ahead of developments.

    The use of innovations and new technologies at Hager is always customer-driven. Every year, Hager evaluates thousands of customer contacts, resulting in detailed knowledge of its customers needs in order to work efficiently and successfully. Based on this knowledge, Hager develops the innovative solutions that are so characteristic for the Hager brand. Ease of installation, ease of use, intuitive user interfaces, modularity and durability are brand values that guarantee highest quality throughout in Hager systems.

    65 percent of Hager products and systems are less than three years old. This high degree of innovation enables the users to meet various new challenges effectively. The strong demand for innovations and enhancements is a good indicator for the customer-oriented policy of the Hager brand resulting in a high turnover at wholesalers..

    Hager Group is a family owned business with a more than fifty-years of tradition. As a global player, the company has about 11,400 employees and a turnover of more than 1.62 billion euros in 2012.Today, the Hager Group offers more than 74,000 items.

    As a specialist in

    power distribution cable management wiring accessories and smart building automation

    Hager the supplier for professionals is synonym with top quality, innovative technology & reliability. All of which make Hager the partner for smart solutions, you can trust.

  • DOs in case of electrical shock :

    To treat a person who has sustained electrical injury:

    Unplug the appliance and/or turn off the MCB (at the fuse box)

    - (Merely turning the switch off will not necessarily stop the flow of current)

    Call an ambulance

    If the victim is not breathing, immediately begin mouth-to-mouth resuscitation

    2

    First Aid in case of Electric Shock

    Which factors cause an electric shock?

    Contact with live wires is often fatal. The intensity of a shock depends on

    Voltage

    Type of current

    Length of exposure time

    Path it takes through the body (heart or head are the most dangerous routes)

    What can happen if you get an electric shock?

    Heart Failure (cardiac arrest)

    Burns

    Nerve, Muscle, and Organ Damage

    Human body's reaction to electric shockWhen excessive electrical currents pass through the human body, the nervous system is thrown out of gear. This causes the body to react to the passage of current through it as follows :

    3 mA - A tingling sensation is felt

    10-15 mA - Muscle spasm and tightening occurs

    20-30 mA - The heart may fibrillate; severe shock is felt

    >50 mA - Lethal. Fibrillation of the heart occurs

  • 3

    First Aid in case of Electric Shock

    To prevent shock:

    - Place the victim's feet higher than the head by about a foot

    - Cover person with a blanket or coat if available

    Check for indications of shock:

    - Cold, Moist Skin

    - Fast Heartbeat

    - Paleness

    - Feeling Faint

    Check for burns, which may not be visible from the outside. Sites to inspect in particular are:

    - The fingers and toes

    - Skin touching against metal accessories like jewellery or a belt buckle

    Take off any clothing over the burn-but only if it comes away without pulling skin along with it

    As long as the skin is unbroken, you can rinse the burn in cool, running water to ease pain

    Cover any surface burns with a sterile dressing or clean cloth

    Separate burnt fingers or toes with the dressing

    Take the victim to the emergency room-even if the person is breathing, is conscious, and insists that he is all right

    Donts in case of electrical shock :

    Do not touch the person with your bare hands before you are certain there is no live electricity

    WARNING: Never move the person if they are touching a power line or other source of high voltage. Under such circumstances keep a distance of at least 20 feet.

    The above precautions are for your own safety

    CAUTION: For the safety of the victim, do not move him/her if spinal injury is possible from an explosion or fall associated with the accident.

    Do not remove clothing that is stuck to the wound

    - Never put ice on a burn

    - Do not apply ointments or grease to burned skin (as with burns from flames)

  • 4

    First Aid in case of Electric Shock

    Do not bandage with a towel, blanket, or cotton dressing that will stick to the wound. (Instead, use a sheet for large area)

    Take care not to break any blisters that have formed

    Shield the burned area from chafing

    What should you do if not sure if the power is off?

    If turning off the electricity is impossible or you can't tell whether it is off (unless it is high-voltage current), then to approach the victim:

    Stand on a mat (preferably rubber, but piled up newspapers/ magazines could be used if necessary), and

    Extend a wooden or cloth object, such as a

    - Broom handle

    - Chair

    - Piece of clothing, or

    - Rope

  • Types of Reason Consequences ProtectiveFault Device to

    be used

    Overload It is mainly caused It can lead to MCB / when one tries to use reduction in life of RCBOa equipment beyond equipment, ultimatelyits rated capacity, leading to failureor there is a fault in the of insulation andequipment E.g When hence damagingyou keep a heater on the equipment.without any water in it.

    Short Circuit Insulation Failure, High Inrush Current, MCBShorting of the Phase causing permanent to Phase or Phase damage to equipmentand Neutral Wires. and may lead to a Fire.

    Eath Fault Short circuit between Can result in Fire RCBO / Phase and Earth due to sparking. RCCBConductor.

    Earth Leakage Human Body Severe shock, causing RCBO /Touching injury or even death. RCCBLive Wires. Consistent EarthInsulation failure Leakage can also

    cause a Fire.

    Over Voltage Opening of Neutral Damage to OVConnection increase in sensitive Electronic protectionPh-Ph voltage of 440V, Equipment. DeviceSurge through Lighting or transients, Over voltage from Utility.

    Under Voltage Drop in supply voltage, Damage of Equipment, UV relaysstarting of heavy loads. Flickering of Lights.

    The above faults are basic faults experienced in most of the cases in an electrical system. There are many more faults that may be more severe, or have worse consequences, however, these are in exeptional cases and are not discussed above

    5

    Basic faults in an electrical system

  • 1 Fan 60W *2 Lamp, Tubelight 40W *3 Room Heater 200W 1 A4 Water Heater

    8 ltrs 1200-2000W 10 A15 ltrs 3000-4000W 20 A60 ltrs 4000-6000W 32 A

    5 Immersion Heater 1000W 6 A6 Hot Plate-single 1000W 6 A7 Iron-Non-automatic 500W 3 A

    Automatic 1000W 6 A8 Mixer / Juicer 300W 2 A9 TV / VCR / VCP 200W 1 A 10 Music system 200W 1 A11 Refrigerator

    165 ltrs 400W 3 A285 ltrs 600W 4 A350 ltrs 750W 6 A

    12 Toaster 500W 3 A13 Vacuum Cleaner 400W 3 A14 Washing Machine

    without heater 300-1300W 10 Awith heater 5000-6300W 32 A

    15 Water Cooler 700W 6 A16 Desert Cooler 300W 2 A17 Oven 750W 6 A18 Electric Kettle 1500W 7.5 A19 Air Conditioner

    1 ton 1000W 10 A1.5 ton 1500WA 16 A2 ton 2000W 16 A

    20 Hair Dryer 1000W 7.5 A21 Microwave 800W 6 A

    S.No. Items Load/Wattage MCB rating

    6

    Selection chart for typical domestic loads

    Formula for Calculations :

    Incomer Rating : Single Phase =Total Load in Watts

    230 volts

    Three Phase =Total Load in Watts

    3x415 volts

    The given data is only for guidance and may vary for different manufacturers

  • 25 35 0.875 0.7

    40 56 1.4 1.1

    63 88 2.2 1.8

    100 139 3.5 2.8

    125 174 4.4 3.5

    160 223 5.6 4.5

    200 278 7 5.6

    250 348 8.7 7

    315 438 11 8.8

    400 560 14.2 11.3

    500 695 17.4 13.9

    630 876 21.9 17.5

    800 1112 27.8 22.2

    1000 1390 34.8 27.8

    1250 1740 43.5 34.8

    1600 2230 55.8 44.5

    2000 2780 69.5 55.6

    2500 3480 87 69.6

    1

    1

    1

    1

    1

    1

    1 .8

    Transformer Full Load Current Max. ShortRating at 415 V Circuit Current

    (kA)

    4%impedance

    5%impedance

    kVA A

    7

    Max. Short Circuit current as per Transformer kVA

  • Chart for Star-Delta starting

    hp kW amp. amp. amp. amp.

    1 0.75 2.1 1.4 - 2.3 NC306N ND303N

    1.5 1.1 2.7 2.0 - 3.3 NC310N ND304N

    2 1.5 3.5 3.0 - 5.0 NC310N ND306N

    2.5 1.8 4.8 4.5 - 7.5 NC316N ND306N

    3 2.25 5 4.5 - 7.5 NC316N ND306N

    4 3 6.4 4.5 - 7.5 NC316N ND310N

    5 3.7 7.9 6.0 - 10.0 NC320N ND310N

    6 4.5 9 6.0 - 10.0 NC325N ND316N

    7.5 5.5 11.2 9.0 - 15.0 NC332N ND316N

    1 1

    1 1

    1 1

    1 1

    1 1

    1 1

    1

    1

    Motor Rating415V,

    3 phase

    Full loadcurrentapprox.

    Recommendedback-up MCBRelay

    rangeC Type D Type

    hp kW amp. amp. amp. amp.

    1 0.75 2.1 0.95 - 1.5 NC303N ND303N

    1.5 1.1 2.7 1.4 - 2.3 NC304N ND302N

    2 1.5 3.5 1.4 - 2.3 NC304N ND303N

    3 2.25 5 2.0 - 3.3 NC306N ND303N

    4 3 6.4 3.0 - 5.0 NC310N ND304N

    5 3.7 7.9 4.5 - 5.0 NC310N ND306N

    6 4.5 9 4.5 - 7.5 NC316N ND306N

    7.5 5.5 11.2 4.5 - 7.5 NC316N ND310N

    10 7.5 14.8 6.0 - 10 NC320N ND310N

    12.5 9.3 19 9.0 - 15.0 NC325N ND316N

    1 1 1

    1 1 5 1

    1 1 5 1

    1 1 5 1

    1 1 5 1

    1 1 5 1

    1 1 5 1

    1 5 1

    5

    5

    Motor Rating415V,

    3 phase

    Full loadcurrentapprox.

    Recommendedback-up MCBRelay

    rangeC Type D Type

    8

    Selection table for motor application

  • Above data is indicative. Hager will not be liable for damage arising from incorrect applications.

    9

    Cable selection chart

    Color identification of cables

    Purpose Color of cable

    R phase of 3 phase AC circuit Red

    Y phase of 3 phase AC circuit Yellow

    B phase of 3 phase AC circuit Blue

    Neutral of single / 3 phase AC circuit Black

    Earthing Green

    Nominal Current carrying Max. Resistancearea of capacity per km. at 20C

    conductor as per IS:3961

    Sq. mm Amp. Ohms

    1.0 11 19.50

    1.5 14 13.30

    2.5 19 7.98

    4.0 26 4.95

    6.0 31 3.30

    10 42 1.91

    16 57 1.21

    25 71 0.78

    0

    0

    0

    0

    0

    0

    Single core cable (Flexible) voltage grade 1100 V, conforming toIS : 694-1990

    Standard Colours : Red, Green, Blue, Yellow, Black.* As per IS: 3961 (Part V) - 1968

  • Neutral link

    2 Pole RCCB/RCBO/MCB/Isolator

    Earth link

    MCB

    Shortinglink

    To load

    10

    SPN Distribution Board

    Wiring Diagram

  • Neutrallink

    4P MCB/RCCB/RCDShorting

    link

    O/GMCB

    Earthlink

    LEDindication

    11

    TPN Distribution Board with SP Outgoing

    Wiring Diagram

  • Indicatinglamps

    4P MCB/RCCB/RCD

    Neutrallink

    2P RCDTo load

    Shortinglink

    O/GMCB

    12

    TPN Horizontal PPI

    Wiring Diagram

    PPI - Per Phase Isolation

    Incase of a fault in one circuit only the relevant circuit trips and balance remains connected

  • 2P RCD

    Neutral link

    LED indication/or OV device

    4P MCB/ ISO

    Earthlink

    MCB O/G

    Shortinglink

    To load

    13

    TPN Tier Type Distribution Boards

    Wiring Diagram

  • Shortinglink

    2P RCD

    Indicatinglights orovervoltage device

    To load

    MCBO/G

    x160 MCCBor 4P MCB/ISO

    14

    TPN DBs - Phase Segregated DBs

    Wiring Diagram

  • RCCB is a current operated voltage independent device. They provide protection even when the voltage is dip or neutral conductor is interrupted. In a healthy circuit, the vector sum of all the currents in 3 phases and neutral is equal to zero. In case of current leakage to earth, the device senses the imbalance between incoming and outgoing currents in the system and provides automatic disconnection from supply.

    Why use an RCCBs?

    RCCBs are devices which protect the user from the harmful effects of electric shocks. These function by detecting the residual current, comparing the value with the rated residual operating value and opening the protected circuit when the residual current exceeds this value.

    RCCBs are an efficient means for ensuring peoples protection against electrical shocks resulting from direct and indirect contact.

    RCCBs are used for various applications depending upon different current sensitivities.

    RCCBs Application

    30 mA personal protection domestic installation / direct contact

    100 mA limited personal protection / indirect contact

    300 mA building / fire protection

    IEC 61008 defines RCCBs as per following class : Class AC-for normal AC supply networks having no harmonics Class A-for disturbed AC supply networks having harmonic disturbances Class B-class A + for DC networks

    15

    RCCBs

    Connection diagram

    3 phase 4 wire systemsuppy

    3 phase 3 wire systemsuppy

    1 phase systemsuppy

  • Why Hi RCCBs?RCCB being a very sensitive device may trip due to some electrical disturbances in the system, which deforms the sine wave. These disturbances can be: External Disturbance - HV network disturbance, lightening Internal Disturbances - Switching surges, harmonics, non linear loads like

    VFD, thyristor, electronic loads, pulsated DC loads

    These disturbances may interfere with the operation of RCCBs connected to network, apart from other electronic devices connected to system.

    These disturbances can have following effects on the working of residual current device:

    Nuisance Tripping RCCB may trip without a genuine earth leakage Continuity of supply is affected, though no compromise in peoples safety

    Blinding RCCB may not trip on a genuine earth leakage Peoples safety is no longer guaranteed

    In both of the above cases, either continuity of supply or peoples safety is compromised which is not desirable.

    16

    RCCBs

    Technical details :

    Protects a circuit automatically in the event of an earth leakage

    Conforms to IEC 61008 IS12640-1

    With earth fault indicator & positive contact indication

  • Electronic filter circuits for treatment of electrical signals to improve the performance compared to standard RCCBs

    Earth leakage tripping band of 80 - 100% of sensitivity which is higher than normal RCCBs

    Selection / installation tips for RCCBs / RCBOsCareful selection of RCCBs is required for ensuring optimum protection to human life & installation.1. The current rating of RCCB should not be less than circuit design current

    2. Select 2P RCCBs for single phase supply distribution and loads

    3. Select 4P RCCBs for three phase supply distribution and loads

    4. Select the correct trip sensitivity as per following table:

    For protection of human life against direct contact 30mA

    For protection of human life against indirect contact 100mA

    For protection of installation against electrical fires 300mA

    5. Neutral wire should not be looped. Looping of neutral may cause unwanted tripping of RCCBs

    6. RCCBs must be tested regularly (once in a month) by pressing Test trip push button to check its healthiness

    7. Use IP65 enclosures for installation of devices in dusty and humid outdoor area

    8. RCCBs shall only be connected downstream of MCB

    9. Ensure correct earthing throughout the installation. Periodically check that all earthing points are healthy

    10. Wire shall be terminated tightly on the device terminals to ensure proper connection

    17

    Hi-RCCBs

    Hager Hi RCCB (Class A) can withstand the increasingly frequent disturbances which causes nuisance tripping or blinding in normal (class AC) RCCBs. Hager Hi RCCB has -

    Specially designed torroids which solves the problem of non-activation of relay in case of leakage of pulsated DC current

    Technical details :

    For electrical networks with high harmonics / pulsated DC currents and transients

    Conforms to IEC 61008 & EMC standard EN 61543

    With earth fault indicator & positive contact indication

  • Correct selection of MCBs

    Correct selection of MCBs is very important to ensure optimum protection to installations.

    Generally in any installation, we have different kinds of loads like incandescent lights, HPMV lamps, Fluorescent Lights, Motors, Fans, Pumps, Electronic loads like UPS, Servers, Computers and Printers etc. which all have different electrical characteristics.

    It is very important to choose right kind of MCBs to protect each type of load, depending upon load characteristics.

    B curve MCBs are used for :

    Protection of resistive loads that have starting current equal to their running current

    Protection of DG sets (since DG sets have low short-circuit capacity)

    B curve MCBs have magnetic threshold setting between 3 5 x Ir

    C curve MCBs are used for :

    Slightly inductive loads with moderate (below 5 Ir*) starting current

    General houseload loads like lights, fans & household electrical appliances

    C curve MCBs have magnetic threshold setting at 5 10 x Ir

    D curve MCBs are suitable for :

    Inductive loads with a high (5-10 x Ir) inrush current

    Suitable for UPS, small motor & pumps, small transformers etc.

    D curve MCBs have magnetic threshold setting at 10 20 x Ir which does not give nuisance tripping while starting the load

    Ir rated current

    Following are some of the main points which should be kept in mind while selecting MCBs for a particular application.

    The current rating of MCBs should be more than load current in the circuit;For example, if the load current in a circuit is 9A, the minimum MCB rating should be 10A.

    The current carrying capacity of wire should be more than MCB current rating; For example if we select MCB of 10A, then current carrying capacity of wire should be more than 10A.

    MCBs are available in B, C & D tripping category. They should be selected as per load characteristics as shown in table on next page.

    18

    MCBs

  • * Above table is only indicative and not an exhaustive list

    Type of Load Residential Commercial Suitable MCB curve

    Resistive Loads Incandescent lights Incandescent lights

    Geyser Boilers

    Heater Heaters

    Fan blower heaters Oil radiator heaters

    Slight Inductive Florescent Lights Florescent lightsLoads

    Small motors (FHP) High pressure mercury vapour lamps

    Fans & small pumps Sodium vapour lamps

    Window / Split ACs

    Lights with ballasts

    C curve Microwave

    Refrigerators

    General household equipment

    Inductive Loads Water lifting pumps Florescent lights

    ID & FD fans

    UPS Small control D curve transformers

    Medium size motors

    Refrigerators for commercial use

    B curve

    19

    Technical details :

    Curve B & C10 kA as per IEC 60898

    Conforms toIS/IEC 60898 - 1:2002IEC 60898 - 1995IEC 60947 - II

    Types of MCBs to be used for different loads

  • Causes of over-voltage :

    Neutral break in system

    Faulty connections during installation / maintenance work

    Poor voltage regulation

    Over-compensation by capacitors (in industries)

    Neutral break is shown below, is the most common phenomenon:

    In the case of the neutral being broken, houses 2 and 3 are supplied by an artificial neutral, created by the downstream network. One of them shall experience over-voltage and the other, under-voltage due to difference in their instantaneous loading conditions.

    Problems due to over-voltage :

    Sudden failure of electronic devices

    Reduction in useful life of equipment

    Increased failure, high running & maintenance cost

    Heating in systems

    Insulation failure

    Hager offers Over-voltage release MZ209, which continuously monitors voltage between phase & neutral. It breaks the supply by opening the circuit breaker in case the voltage between phase and neutral conductor increases from the pre-determined level (280V AC) and thus prevents damage to household devices.

    20

    Over-voltage in residential & commercial installation is a common problem which can cause serious damage to household electronic & electrical devices. Over-voltage not only reduces the operating life of equipment, it also increases running & maintenance cost.

    Over-voltage release-MZ209

  • Over-voltage release MZ209 can be used with hager MCBs, RCCBs & RCBOs to provide total protection to installation against overload, short-circuits, earth-leakage & over-voltage faults in a system.

    The over voltage auxiliary prevents re-closing until the voltage comes back within the normal threshold.

    Indication that the protection device has tripped due to over voltage is provided by a flag on the auxiliary. The flag indicator appears Red if the tripping is caused due to an over voltage.

    21

    Over-voltage release-MZ209

  • Hager modular changeover switch is a compact device which can be mounted on a standard DIN channel inside an enclosure. Its design is compatible with all other hager modular devices, such as MCBs and RCCBs.

    The changeover switch comes in 2P and 4P versions, for single and three phase applications, respectively. It has three positions (I - O - II) with centre-off position.

    The incoming side must be protected against short circuits. For isolation, use it with an appropriate MCB.

    Technical details:

    Conforms to IEC 60947 Part I Ratings - 25A & 40A No. of poles - 2P & 4P 3 positions (I - O - II) with centre OFF Utilization category - AC 21A

    22

    Changeover switches are used to shift from one source of supply to another source, and vice versa.

    Changeover switches

  • Available from 20 A to 63 A for AC 1 Utilization Category.

    No. of Poles 2 NO, 3 NO, 3 NO + 1 NC, 4 NO

    Rating 25 A, 40 A, 63 A

    Utilization Category-AC 1 (switching of resistive loads only)

    Technical details :

    For remote switching & control of power circuits.

    All contactor ratings are for AC 7A load only (Coil voltage 230V 50Hz)

    23

    Technical details :

    Conforms to IEC 60947 - Part III Ratings - 25A, 32A, 40A, 63A & 100A No. of poles - 2P, 3P & 4P Utilization category - AC 22 IEC & approved

    The simple and safe-to-instal l switch disconnectors (isolators) from Hager help to make your work easier and ensure absolute safety of electrical installations. All devices are manufactured in compliance with the latest IEC standards and are CE marked. They are particularly easy and safe to install.

    Used for remote switching and control of power circuits.

    Isolators

    Contactors

  • Time switches are used to automatically switch on-off electrical circuits according to real time of day e.g. street lights, glow sign boards, fountains, etc. They enhance user comfort and save valuable energy. They give us the freedom from repeated manual switching and ensure that loads are operated according to time schedule without fail. This helps in saving energy by switching off the circuits and avoiding unnecessary energy consumption when devices are not required.

    Hager recommends time switches to control air-conditioning, heaters, water pumps, street lights, water sprinklers, periphery, security lights, etc.

    Electro-mechanical time switch for simple daily routine applications. For e.g. daily water pump operation.

    Digital Time Switch offers more flexibility in operation, suitable for different settings for each day of the week. e.g. Office lights and A/C control, School bell automation.

    Astro Time Switch Most advanced technology which adjusts On-Off time based on sunrise & sunset times. Typical applications Street lights, Shop window lights, External lights of buildings.

    Technical details :

    Astronomical time switches are used to control various loads according to sunrise and sunset time. Example street light, neon sign etc.

    24

    Time switch

    Hager offers a comprehensive range of modular time switches in electro-mechanical, digital & astronomical versions to meet the basic to the most advanced applications.

  • Hager movement and presence detectors are suitable for indoor and outdoor residential & commercial applications.

    PIR detectors monitor human movement / presence in detection zones & automatically switch on the lighting when movement is detected. They are very useful for application in offices, schools, cafeteria, wash rooms, parking lots, conference rooms, etc. PIR detectors will automatically switch off the lights after preset time delay if no movement is detected for the set time.

    25

    Movement & presence detectors

    Technical details:

    IP55 wall mounted movement detectors suitable for outdoor applications

    Comfort range: Adjustable lux level 5 to 1000 lux. Time delay upto 15 mins. Vertical / horizontal head adjustment. Detection area control by shutters

    Enhanced range: All features of comfort range plus adjustable sensitivity control via potentiometer. Infra red remote control for remote setting (accessory).

  • Separate dimmers are available for control of incandescent or halogen with standard or electronic ballast and fluorescent lamps.

    Stand - alone dimmers for 600 W and 1000 W. Control of 3000 W can be possible by using master and slave combination.

    They are compact devices and can be fitted inside distribution boards along with other modular devices to control the lighting output as per users need.

    Main features of hager dimmers:

    Soft start (progressive start) to increase the lamp life

    Memorization of last dimming level

    Protection against over-heating

    Can be controlled by several push buttons

    Technical details:

    These devices are used for control of lighting levels in domestic & professional premises

    26

    Modular devices used for control of lighting levels in domestic premises, software offices, large corridors, conference halls and hotels.

    Control is localized. Remote is possible by associated Push Buttons.

    Dimmers & Dimming System

    Dimmers

  • A time lag switch allows you to switch ON the lights during an adjustable time. After the time lag, the lights switch OFF automatically. Hager staircase time lag switch works with any bell push switch available in the market. The time lag switch is suitable for staircase, corridor, lift lobbies for saving energy in lighting.

    27

    Time Lag Switch

    Technical details:

    A staircase time lag switch allows you to switch on the light during an adjustable time. After the time lag it switches off automatically.

  • 28

    Notes

  • 29

    Notes

  • Hager Electro Private LimitedSales & Marketing office :Office 2A, First FloorNorth Court BuildingOpposite Joggers ParkKalyani NagarPune-411006 India

    Delhi Sales Office :B 217 Tower BDLF Towers, JasolaNew Delhi-110025 India

    Mumbai Sales Office :Office # 1301A, Tower 3Indiabulls Finance CentreElphistone RoadMumbai, India

    Hager Electro SAS:132 Boulevard d` EuropeBP 78F-67212 OBERNAIFRANCE

    Tel: +91 11 49677500Fax: +91 11 49677555

    Tel: +91 20 41477500Fax: +91 20 41477510Toll free no.: 1800 103 5440Email: [email protected]: www.hager.co.in

    Tel: +91 22 71813200