Siemens Switchgears Suppliers in Tamil Nadu

Air Circuit Breakers

The 3WN range of air circuit breakers is available for rated currents from 630 A to 6300A Advantages: compact in size and light in weight reduced heat losses for higher in panel ratings. fully modular construction Extensive range of visual and electrical signals as standard.

Compact in size and light in weight
Reduced heat losses for higher in panel ratings.
Fully modular construction
Extensive range of visual and electrical signals as standard.

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AS Interface

Requirements of AS-Interface At the lowest control level, sensors, ntactors, motor circuit switches, indicator lamps, pushbuttons etc. which transfer volumes of information in the bit range had to learn to communicate.

The bus systems already in existence were either over dimensioned or simply could not be used for such a task. They used cables that were either too expensive or unsuitable for a direct link to the process (e.g. fibre-optic cable,shielded and non-flexible cable), and the volumes of data transmitted were simply too high. Either the data protocols were non- deterministic or the control electronics used were much too expensive if each binary sensor was to be a bus node and in an automation network there might be any number of them. Over and above that, assembly and installation needed to be as simple as possible, without the need for any special training. The costs for each connection should be low and in keeping with the volume of data to be transferred. In short: AS-Interface had to be able to network binary sensors and actuators and link them to the higher control levels, very simply, inexpensively, and meeting industrial requirements.

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Beros

The wide range of applications for Sonar-BERO ultrasonic sensors is limited only by the designer’s imagination: Level and height sensing , Distance measurement ,Winding diameter detection, Bottle counting and much more

The wide range of applications for Sonar-BERO ultrasonic sensors is limited only by the designer’s imagination
Level and height sensing
Distance measurement
Winding diameter detection
Bottle counting and much more

Siemens Switchgears Suppliers in Tamil Nadu

Control Switches

The switches can be supplied in open execution or in sheet steel enclosure. The switches are known for their versatile design, high making and breaking capacity, long mechanical and contact life and the many safety features that are provided.

The switches can be supplied in open execution or in sheet steel enclosure.
The switches are known for their versatile design, high making and breaking capacity, long mechanical and contact life and the many safety features that are provided.
Construction
The 3LAO switches are available in size 2 for 25 Amps. and size 6 for 63 Amps. They are made up of uniform switching packets assembled to form a stack. Each packet consists of 2 sets of contacts whose moving contacts
Are operated by moulded plastic cams when the operating shaft is turned. The stacking of similar packets renders it possible to build switches for practically all types of small drives, offering at the same time a uniform appearance. This and their compactness make them ideal for installation on machine tools.

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Distribution Boards DBs

Distribution Board: Siemens Miniguard Distribution board provides and Commercial Applications. The Range offers a Choice of Incoming devices via Isolators, MCBs or RCCBs and a Choice of Enclosures from four way to twelve way in Single and Double Door Design.

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Fuses

The Siemens low voltage HRC fuses of BS type design have been developed for industrial applications. Due to the special design, they give high rupturing capacity combined with low temperature rise under normal load conditions. The quick acting characteristics of the fuses ensure that under the worst fault conditions, cut-off occurs before the maximum value of fault current is reached, thus reducing the electro-magnetic stresses and fire risk.

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Miniature Circuit Breaker MCB

MCB: The Siemens Miniguard MCB Protects wires and Cables Automatically Against Overload and Short Circuit in Domestic, Commercial and Industrial Installations. The 5 SQ2, 3 KA MCB is available in a Comprehensive range from 0.5 to 63 A in 1,2,3 and 4 Pole version.

Miniature Circuit Breaker (MCB): The Siemens Miniguard Miniature Circuit Breaker (MCB) Protects wires and Cables Automatically Against Overload and Short Circuit in Domestic, Commercial and Industrial Installations. The common idea behind a miniature circuit breaker is to make a switch that will mechanically turn itself off if overmuch current flows through it. The 5 SQ2, 3 KA miniature circuit breakers (mcb) is available in a Comprehensive range from 0.5 to 63 A in 1,2,3 and 4 Pole version.

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Moulded Case Circuit Breaker MCCB

A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow. Unlike a fuse, which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.

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Powerguard Heavy Duty Fuse Switches

Benefits

Wide range:Single source for, SDFs, open upto 800 A SDFs, in SS enclosure upto 630 A SDs, open upto 1600 A No movement of fuses.
Prevents loosening of fuses; hence reliable short circuit protection.
Suitable for knife blade fuses Reduced down time for fuse inspection/replacement.
Double break feature: Isolates the fuses at both the ends. Thus total protection to operating personnel.

Limit Switches

The technical and descriptive information on the function, construction and selection of the new types of 3SE3 limit switches is presented here. These limit switches are actuated by straight edges, cams, stops or plates etc.

The technical and descriptive information on the function, construction and selection of the new types of 3SE3 limit switches is presented here. These limit switches are actuated by straight edges, cams, stops or plates etc. and give control commands for the further progress of the switching program or of the manufacturing/processing squence.
For the various control applications there are 2 ranges available, namely open type and metal enclosed limit switches with 3 different versions of contact configuration.

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Relays

The bimetal overload relays type 3UA5/6 & 3UC5/6 relays are indigenously manufactured and bring to the users a whole range of benefits, which are a direct result of extensive R & D efforts in design, materials and manufacturing technology. They also incorporate additional features/benefits as a result of feedback from the users of our 3UA19 relays.

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Siemens Contactors

The 4 pole contactors type 3RT13 and 3RT15 are specially designed to meet specific applications. These contactors are highly reliable, user friendly and meets the expectation of world class Siemens products. They conform to the latest IEC60947-4-1 standard and carry CE marking.

Siemens offers range of contactors for industrial usage and ready-to-use contactor assemblies.
Capacitor Duty Contactors.
3TF3/3RT16 capacitor contactors are used to switch power capacitors that are utilized for reactive current compensation. Special series resistors and auxiliary contacts, integrated in the capacitor contactor, reduce the high inrush current of the capacitor which would otherwise flow. This reduced inrush current guarantees a high contactor and capacitor enhanced life. These contactors are available in sizes S00, S0 and S3 and can generally be equipped with the standard accessories of the basic devices.
Power Contactors for Switching Motors.
With a wide range of power contactors for switching motors, Siemens offers contactors for different applications – up to 250 kW. In sizes S00 to S12, in addition to 3-pole standard contactors, one can opt for vacuum contactors, coupling relays for optimal interfacing with the outputs of controllers, and various different 4-pole power relays and miniature contactors for the performance range up to 4 kW.
Special Contactors for Special Applications.
Single-phase 3TK5* and 3RT14* AC contactors can now be used, for example, for switching heating circuits up to 690 A. The 4-pole 3RT13 contactor is ideal for implementation in changeover circuit with isolation of neutral conductor. The contactor range also includes 3TF3* capacitor duty contactors for reactive current compensation with power capacitors.
The range also includes Hoisting duty contactors and 2 Pole DC contactor.

Benefits:

Compliance with major international standards
Widest range of contactors for almost all the application.
Reliable and widely used in industry
Pole Contactors
4NO AC1 duty power contactors upto 140A can be used as incomer in a source change over system. 2NO+2NC AC1 duty power contactors upto 55A is suitable for changing the polarity of the hoisting gear motors and switching of two separate loads.

Benefits:

High Mechanical and Electrical life.
High performance and reliability.
User friendly and safe to operate.
Facility to add on auxiliary contact blocks.
Wide range of site fittable accessories.
Suitable for both screw mounting and DIN rail.
Contactors for Resistive loads.
Contactor range on one hand consists of SICOP 3TF motor contactors, which can be used to switch inductive loads, e.g. according to utilization categories AC-2/AC-3 and AC-4 and also to switch resistive loads according AC-1. On the other hand, the special 3TK5/3RT14 AC-1 contactors with 3 NO main contacts offers a cost-effective alternatives for rated operating currents greater than 100 A and up to 690 A. These AC-1 contactors are especially optimized to switch loads according to utilization category AC-1.

Benefits:

Specially designed for AC-1 loads hence economical then AC-3 load contactors.
Can be used with almost all type of resistive loads.
Compliance with all major international standards.

Simocode DP

SIMOCODE-DP is a tried and tested system: Increasingly, the communicationscapable SIMOCODE-DP 3UF5 motor protection and control device is being successfully used worldwide in lowvoltage switchgear systems.

Increasingly, the communicationscapable SIMOCODE-DP 3UF5 motor protection and control device is being successfully used worldwide in lowvoltage switchgear systems. It represents the intelligent link between the motor feeder and the process control system. The fact that this state-of-the-art technology is being increasingly used reflects the requirement for increased plant availability but at the same time, cost savings during the onstruction and commissioning of a plant and its operation. This places a wide range of requirements on such an intelligent field device.

Soft Starters

SIKOSTART 3RW24 digital electronic motor controllers (SOFTDRIVE) are multifunctional electronic system to provide smooth acceleration, eceleration and a controlled level of starting current for use with three phase asynchronous motors.

SIKOSTART 3RW24 digital electronic motor controllers (SOFTDRIVE) are multifunctional electronic system to provide smooth acceleration, eceleration and a controlled level of starting current for use with three phase asynchronous motors. Apart from its basic functions, it also is equipped to protect the motor under various fault conditions.
With its advanced start & stop modes, extensive protections and improved fault diagnostics; the controller has the maximum flexibility to suit any kind of load requirement. The SIKOSTART range of digital controllers utilize 6 thyristors, each phase has two thyristors in antiparallel configuration. By varying the thyristor conduction period, the voltage applied to the motor and hence the motor starting torque, are controlled. Two versions are available viz. Line connection (3-wire system) and Inside Delta connection (6-wire system).

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Starters

A motor Starter has two basic functions to perform: 1) Starting and stopping the motor. 2) Providing adequate protection to the motor and safeguarding it in the event of sustained overloads, single phasing, locked rotor conditions and undervoltage. Siemens makes a wide variety and range of Starters suitable for various applications. However, for small general purpose motor feeders

Motor Starter has two basic functions to perform.
Starting and stopping the motor.
Providing adequate protection to the motor and safeguarding it in the event of sustained overloads, single phasing, locked rotor conditions and undervoltage.
Siemens makes a wide variety and range of Starters suitable for various applications. However, for small general purpose motor feeders

Timers

The Siemens 7PU60 20 Timers provide adjustable star time i.e.[(2-20/6-60 sec)/(20-200 sec)] and fixed Star to Delta transfer time (i.e. 50 ms) Timers type 7PU60 20–3N..are provided with 2 time setting ranges. Selection of range is done with Selector Switch, Provided on the front plate of timer. Timer type 7PU60 20–4N.. has one setting range (Selector switch is not functional)

The Siemens 7PU60 20 Timers provide adjustable star time i.e.[(2-20/6-60 sec)/(20-200 sec)] and fixed Star to Delta transfer time (i.e. 50 ms)
Timers type 7PU60 20–3N..are provided with 2 time setting ranges. Selection of range is done with Selector Switch, Provided on the front plate of timer. Timer type 7PU60 20–4N.. has one setting range (Selector switch is not functional)

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Auxiliary Relay

Auxiliary Relay & Trip Relay – Better protection and more efficiency for your power system.

Suitable for Signalling in protection and control systems where immunity to capacitance discharge is required.
Robust design for a long, reliable, service life.
Heavy duty contact ratings.
High voltage insulations.
Lower Rated burden.
Higher Operation stability.
Flag indication for the operated conditions.
Individual variant for Auxiliary Voltages.

TCS Relay

Trip Circuit Supervision Relay – is an electronic circuit based relay which is used to monitor and supervise the integrity of Circuit breakers trip coil and other wiring circuits of low-voltage and medium-voltage network. Trip Circuit supervision relay is connected with a circuit breaker to monitor the trip circuit positions (Open or closed). Trip Circuit Supervision Relay generates a trip circuit failure alarm, either if the trip circuit supply is disconnected or if the trip circuit connection is changed to an open circuit. Trip circuit continuity is measured by supplying the supervision current of 0.7 mA to 1.5 mA and sensing the flow of current with two opto-couplers. The circuit breaker contact indicates the status of relay whether the circuit breaker is in open position or closed position. The front panel of Trip Circuit Supervision Relay comprises of single LED with dual colored to indicate the status of process. In a healthy condition, the Green LED flashes and the output relay reaches the pick-up condition. In the fault condition, the Red LED flashes and the output relay reaches the drop-off condition and operates after a delay of 500 ms.

The salient features of Trip Circuit Supervision Relay are:

Universal auxiliary voltage range with very low burden (i.e.) 24 V to 230 V AC/DC at less than 4 watts.
Universal supervision voltage range (i.e.) 24 V to 230 V DC
Compact-in-size 48×96 mm.
Fitted with flush-mounting.
Continuous supervision of trip circuit in Pre-closed, Post-closed condition and latched trip condition.
Detects faults such as Auxiliary voltage loss and circuit breakage in supervised circuits.
Indicates operational status by single LED with dual color.
Relay has been type tested in accordance with IEC60255 standards