SIEMENS

The compact design of the 3VJ molded case circuit breakers coupled with excellent characteristics fulfills the high demands of today's electrical distribution systems. These circuit breakers offer a broad product range, improved technology, space savings and easy operation.

3VJ Range of Molded Case Circuit Breakers

• 20A to 630A
• 3-pole & 4-pole versions
• Thermal magnetic and microprocessor based release
• Breaking capacity from 55kA to 100kA
• Suitable for generator, power distribution & motor feeders
• Fixed mounted, plug-in and draw out versions
• Communication capable

And also there is the 3VJ molded case circuit breakers which will also be suitable for your electrical distribution system with its own characteristics.

3VJ Range of Molded Case Circuit Breakers

• Rated current – 20A to 630A
• 3-pole & 4-pole versions
• Thermal magnetic and microprocessor based release
• Breaking capacity from 25kA to 65kA
• Switch disconnector for complete range
• Fixed mounted, plug-in and draw out versions
• Special purpose trip unit for motor & generator protection
• Under voltage & shunt release with multiple voltage settings

Miniature circuit breakers offer effective protection through safe disconnection in the event of an overload and short-circuit. The distinguishing features of this product range include convenient mounting and connection methods, uniform additional components, as well as a consistent design.

This entire range of devices is suitable for all industrial applications, as well as all applications in non-residential and residential buildings, thus providing you with the right device for every application.

5SL Miniature Circuit Breaker (MCB)

• Rated current 0.5 to 125A
• Number of poles 1,2,3,4
• Rated voltage min – 24V AC/DC, max – 415V AC
• Available with a choice of type B & type C trip characteristics
• Breaking capacity upto 7.5kA
• SLR (Slide Larch Release) feature for tool free removal of MCB from DIN rail.

Frequency converters, medical devices and UPS systems are seeing increasing use in industry. Smooth DC residual currents or currents with low residual ripple may occur in the event of faults on these devices.

Type A residual current protective devices are unable to detect these smooth DC residual currents. Furthermore, such smooth DC residual currents make Type A devices increasingly insensitive to AC residual currents and pulsating DC residual currents. If a fault occurs, there is therefore no tripping and the desired protective function is no longer assured.

Universal current-sensitive residual current protective devices of Type B have an additional transformer, which is supplied with a control signal. It is therefore possible to evaluate the change of the transformer's operating range caused by smooth DC residual currents, thus ensuring the desired protective function.

5SM Residual Current Circuit Breakers (RCCB / RCBO)

• Rated current 25A to 125A, 2P & 4P (30mA, 100mA. 300mA)
• Available with a choice of type A, AC & B
• Other products in our range,
1. Betagard RCBOs (2P,2M) : 6A-40A, 2P, C char, Type AC/A, 10kA
2. Betagard RCBOs (MCB + RCB unit) : 32A-63A, 2P/4P C/D char, Type AC/A

Isolators are used to switch lighting, motors and other electrical devices. Siemens 5TL1 Isolators can be retrofitted with auxiliary switches without tools in order to relay the switching state to a higher level.

5TL Isolators

• Conforms IS 8828, IEC 898 Standards
• Unique “c” tripping characteristics
• Suitable for AC and DC applications
• Finger touch proof terminals suitable for 25mm cable

3KA8 Switch Disconnector

• Conforms to 13947-3, IEC 60947-3 Standards
• Range – 63A to 1600A
• Rated utilization category – AC23A at 550V AC
• Suitable for applications up to 600C
• Suitable for DC application
• Very high switching life

Whether ON or OFF delay relays or relays for switchover from start to delta – the timing relays from the SIRIUS modular system are perfectly suited for all delayed switching processes in control, starting, protection and regulation circuits. Thanks to their mature concept and space-saving, compact design, the SIRIUS 3RP electronic timing relays are ideally suited for industrial control cabinet, power distribution board and control manufacturers. They are optionally available with removable terminals, screw-type or spring-loaded connection system.

Type 3RP Electronic Timer

3RP15 electronic timers can be used for all delayed switching applications in control, starting and protection circuits. They are ideal for use in application like machine tools, material handling, process control and motor control. With multifunction timer, you can configure the same timer as per your application need. Thus one timer is suited for many applications.

ON delay: Control supply voltage options –
Discrete voltages
Universal voltage of 24 to 240V ac/dc

Time ranges - 0.5 -10 sec, 5 - 100 sec
Universal time range of 0.05 sec to 100Hr

OFF delay: Control supply voltage options –
Discrete voltages
Time ranges - 0.5 - 10 sec, 5 - 100 sec

Star Delta: Control supply voltage options –
Discrete voltages
Universal voltages of 200 - 240V ac/dc,
380 - 440Vac/dc and 230 - 400V ac/dc

Time ranges - 1- 20 Sec, 3 - 60 Sec with 50 msec changeover delay

Multifunction: 1 timer 8 functions (ON delay, OFF delay, ON+OFF delay, Cyclic, Make Contact, Break contact, Pulse shaping, Additive ON delay)

Control supply voltage options - Universal voltage of 24 - 240V ac/dc

Time ranges - Universal time range - 0.05 sec to 100Hrs

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 sequence. 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.

SICONT Limit Switches Type 3SE3

• Rated insulation voltage – 500 V AC; 600 V DC
• Rated thermal current – 10A
• Electrical endurance, utilization category AC 15 – 30 million switching operations with 3TH/3TF contactors
• Ambient temperature - -40oC to +85oC
• Earthing connection – M 3.5 inside housing
• Terminal cross section – 2 x 1.5 sq. mm. finely stranded with end sleeves

For more than 110 years, Siemens has been developing and manufacturing industrial control products. We offer a wide product range which fulfills the demands of our customers regarding performance and reliability. Our aim is to make industrial operation easier ensuring flexible mounting, modular construction and high functionality. With 3TF contactors Siemens has been offering a tried tested trusted solution to control, switch and protect your motors upto 250kW.

3TF SICOP Power Contactors

• Range – 9A to 820A
• Application – Switching and Controlling of motors, capacitors,
lighting loads and transformer loads.

Whether as single devices, as modules for load feeders or for installation in low-voltage distribution boards/switchboards – Siemens offers suitable contactors for every application as well as fully assembled contactor assemblies. What makes our SIRIUS devices unique: Their high contact reliability, extremely long service life and the possibility of using them even in the most extreme ambient conditions.

3RT SIRIUS 4 Pole Contactor

• Range – 0.1A to 630A, trip class 10/30/
• Application – Accurate and reliable protection to motor against single phasing and overload conditions, protection of motors with higher starting times (class 30).

Siemens contactors are readily accepted by end-users, consultants, OEMs and other customers all over the world, thanks to their reliable and trouble-free performance in tough and diverse applications for over 50 years now.

Benefits of a Capacitor Duty Contactor:
• Controlled switching of capacitors, hence reduced stress during switching.
• Prevents contact welding during switching
• High electrical & mechanical life
• Ideal for APFC systems which have more than one capacitor in parallel
• Easy handling, installation & maintenance.

Robust and compact, designed and developed by SIEMENS Germany for the world market now available at Empire Trading Agency(PVT) Ltd. 3VU* circuit breakers set the standard in protection of motors and other loads.

These MPCB can be used in Machine Tools, textile machinery, automobile, food and many other process industries where robust and compact devices are required for disconnection and protection of plants and individual loads.

Motor Protection Circuit Breakers 3VU SERIES

• Space saving compact modular design
• .Finger touch proof and open terminals with SIGUT connection technique.
• Optional integrated auxiliary contacts save space and time.
• Phase failure protection.

3UA Series Overload Relays are suitable for overload and phase - failure protection of AC motors with frequency of 50/60Hz. The relays are also suitable for overload protection of DC magnet and DC motors. The relays comply with IEC947-4, VDE0660 and GB14048. Several functions provided by these relays are: phase-failure protection, temperature compensation, ON/OFF indication and manual/automatic reset. The relays can be mounted onto contactors or installed as single units.

Overload Relay – 3UA Series
• Range – 0.1A to 630A (trip class 10/30)
• Application – Accurate & reliable protection to motor against single phasing and overload conditions, protection of motor with higher starting times (class 30).

Our pushbuttons and indicator lights are characterized by a high degree of functionality and their modern, slim design. Another convincing feature: They are easy to assemble. The actuators, indicators, holders as well as switching and lighting components can be made secure and stable in rapid, one-man assembly.

• 3SB5 Pushbutton Units and Indicating Lamps, 22 mm

The 3SB5 series is a modular range of commanding and signaling devices for front panel mounting and rear conductor connection. The devices are of modern industrial design and can be mounted rapidly by a single person. The operating surfaces of the pushbuttons and illuminated pushbuttons are concave. The lenses of the indicator lights are convex.

To accomplish a sustainable reduction of power costs, you must first analyze the electrical system’s current consumption and power flows. The SENTRON PAC3100 power meter precisely and reliably delivers the required information of power values to put you on the path to reduce your power cost.

The SENTRON PAC3100 can easily be integrated into a power management system using Modbus RTU. With communication, the SENTRON PAC3100 transmits measured values to the supervisory systems, where the data can be further processed for display and control.

SENTRON PAC3100 Power Monitoring Device with Communication

• Display of instantaneous, Maximum and Minimum values
• Measurement of Active & Reactive Power (Import/Export/Net)
• CT polarity reversal correction from the device
• RS 485 MODBUS & RTU port inbuilt

3KA8 Switch Disconnectors are designed to handle wide ranges of application up to 690V 50Hz AC. 3KA8 can be used as a Main Isolator Switch for Inductive Loads, small motor loads, mixed loads and Power distribution application for heating, lighting applications etc. This also can be used as an emergency switch as the same can be padlocked in off position, to facilitate safe working downstream in power-off condition. In series configuration, these Switches can also be used as Isolators in DC systems up to 440V.

Superswitch 3KA8 Switch Disconnector

• Conforms to IS 13947-3, IEC 60947-3
• Range – 63A to 1600A
• Rated utilization category – AC23A at 550V AC
• Suitable for DC Application
• Suitable for application up to 60oC
• Unique Positive Isolation Feature

The SENTRON ATC5300, when equipped with two motor-driven circuit breakers, serves as a transfer system that automatically or manually switches between two power supply systems in low-voltage power distribution applications. SENTRON ATC5300 is deployed everywhere where a power failure is especially critical, e.g. in hospitals, in conjunction with UPS systems, and for industrial processes. With its broad measuring voltage range covering up to 690 V UL-L, the SENTRON ATC5300 is suitable for use in the industry, infrastructure, and building management systems.

SENTRON ATC5300 – Automatic Transfer Controller

• Screw terminal connection
• AC/DC power supply unit
• 220 - 240 V AC, 45 - 60 Hz
• 9 - 70 V DC
• Rated setting range: 100 - 690 V AC

Every sector has its own particular requirements when it comes to drive technology. As complete supplier with many years of experience, we understand these requirements and precisely fulfilled them. Complementing our standard range of General Purpose and Severe Duty motors, we can also offer specific motors that fully comply with special sector requirements. This allows us to provide solutions that perfectly meet customer demands.

Standard motors from Siemens are characterized by their flexibility, ruggedness and energy efficiency. In general, all motors are suitable for converter-fed operation with line voltages. The motors are designed to fulfill the requirements of the European and international markets with an output range from 0.37 to 315 kW.

SIMOTICS GP 1LA Standard Motors
• Frame size - 71 to 355
• Power range - 0.37 to 315kW
• Number of poles – 2,4,6
• Ambient Conditions – 50oC, Altitude <= 1000m
• Lubrication System – Regreasable bearings for frames 160 onwards

The Industrial Starters from Siemens make sure your business starts on the right foot every time. These Industrial Starters, available in Direct on line (20HP to 75HP) and Automatic Star-Delta (30 to 75 HP) varieties, have been specially built to incorporate superior features that meet your changing needs and offer the highest levels of quality.
Direct On Line Motor Starters - Type 3TW
• Equipped with robust 20A (AC3) contactor
• Accurate protection under single phasing & overload
• High mechanical & electrical life
• Easy to maintain
• Wide band coil available
• Conforming to ISI:13947 (Part 4/ sec. l)

The main purpose of motor starters is to start the electrical motor by switching ON the contactor inside the starter. The relay inside the starter additionally protects the motor in case of overload and single phasing condition. The starter is nothing but a pre-wired assembly of contactor(s), relay and ON-OFF push buttons. Direct on line and star delta are two methods of starting the electric motors which is achieved by our DOL and star delta starter respectively.

In star delta starting, initially the motor windings are connected in star. This reduces the starting current by 1/3rd of the full load current also the voltage by (1/√3) of the rated value. As the torque is proportional to the square of the voltage, the starting torque also get reduced to 1/3rd of its full load value. Once the motor attains approximately 80% of the rated speed, the windings get connected in the delta formation.
Thus by star delta starting, the starting current is reduced to 2 to 2.5 times the rated current unlike DOL starting, where it is 7 to 8 times of the rated current.

Handle Operated Star Delta Starter (3LW42)

• In this starter, the changeover from ‘star’ to ‘delta’ is done manually through a control switch. It consists of a star-delta switch (3LAO), contactor (3TW02), an overload relay (3UW50), “Reset” push button and a safety ‘ON’ push button.

Semi automatic Star-Delta Starter (3TS02)

• In this starter, the changeover from ‘star’ to ‘delta’ is done manually by pressing ON push button. It consists of three contactors (3TW03), bimetal overload relay (3UW50), and push buttons (ON-OFF, Reset) for control command.

Fully automatic Star-Delta Starter (3TE02)

• In this starter, the changeover from ‘star’ to ‘delta’ is done automatically after a preset time by using a timer. It consists of three contactors (3TW03), bimetal overload relay (3UW50), electronic timer (3RP) for automatic changeover from ‘star’ to ‘delta’ and push buttons (ON-OFF, Reset) for control command.

For more than 110 years, we have been developing and manufacturing industrial switchgear and controlgear products. And always with the claim: To provide you with reliable as well as innovative switchgear technology – whether in the control cabinet, in the field or directly at the machine. This is the reason that we are completely combining our industrial controlgear technology under one single star – SIRIUS. And this makes it simple for you: SIRIUS Industrial Controls not only offers you the complete range – whether switching devices for load feeders, power distribution components, command and signaling devices or complete cabinet systems. With SIRIUS, the subject of industrial controls takes on a new dimension when it comes to simplicity. With SIRIUS Industrial Controls, you can relax and look towards the future.

SIRIUS 3RW30 – For standard applications
• Compact design
• Integrated bypass contact system
• Soft start
• Innovative 2-phase “Polarity Balancing” operation
SIRIUS 3RW40 – For standard application
• Soft start, soft stop, adjustable current limit.
• Integrated bypass contact system eliminate use of external bypass contactor and saves power loss.
• Integrated microprocessor based overload relay with adjustable trip class 10/15/20.
• Overload relay remains active even when soft starter is in bypass mode. Easy fault diagnosis with LED display for: incorrect le/trip class setting, motor protection switched off, thyristor thermally overloaded, mains supply missing or <75% , phase loss and equipment error.
• Intrinsic device protection to protect against thermal overloading of thyristor.
• Innovative 2-phase “Polarity Balancing” operation

SIRIUS 3RW44 – For heavy duty applications
• Soft start, soft stop, adjustable current limit, breakway impulse and pump stop.
• Integrated bypass contact system eliminate use of external bypass contactor and saves power loss.
• Integrated microprocessor based overload relay with adjustable trip class 5/10/15/20/30.
• Overload relay remains active even when soft starter is in bypass mode.
• Thermistor protection through PTC.
• Programmable 4 inputs and 3 outputs.
• Creep speed mode for both directions and closed loop torque control.
• Easy fault diagnosis with warnings and error signals like the thermal overloading of thyristors, undercurrent and overcurrent limit exceeded, ground fault, maximum number of starts exceeded.
• PC interface as standard feature.
• Optional Profibus DP/ProfiNET communication modules available.

Today, in an increasing number of applications in plant and machinery construction, individual automation and drive solutions are demanded that automate simple motion sequences with low associated requirements. With its compact SINAMICS V20, the basic performance inverter, Siemens offers a simple and cost-effective drive solution for these types of applications. SINAMICS V20 sets itself apart with its quick commissioning times, ease of operation, robustness and cost-efficiency. With four frame sizes, it covers a power range extending from 0.12 kW up to 15 kW (1/6 hp up to 20 hp).
SINAMICS V20
• Power range: 0.12kW to 15 kW (1/6 hp up to 20 hp)
• Voltage range: 1AC 200 V ... 240 V (+ / –10 %)
3AC 380 V ... 480 V (+10 % / –15 %)
• Control modes: V/f V2/f FCC V/f multi-point