Automation & Drives

Siemens Automation and Drives offers a comprehensive range of products, and services for protection, control and distribution. Its portfolio ranges from Low-voltage Controls and Distribution (Air Circuit Breakers, Moulded Case Circuit Breakers, Residual Current Circuit Breakers, Magnetic Contactors, Capacitor Duty Contactors, Hoisting Duty Contactors, Contactor Relays, Overload Relays, Low Voltage HRC Fuses, Soft Starters, Limit Switches, Proximity Sensors, Power Factor Improvement Capacitors etc.), Electrical Installation (Miniature Circuit Breakers, Switches & Sockets), Standard Drives, to Large Drives and Automation using award winning SIMATIC series PLCs. Our product range has consistently set the pace in today's industrial markets.

With integrated automation blocks, powerful engineering tools and innovative concepts such as Totally Integrated Automation (TIA) and Totally Integrated Power (TIP), we deliver solution platforms based on standards that offer you a considerable savings potential. Beside protection, monitoring and control; significant cost savings can be achieved at every stage of implementation, ensuring improved profitability for panel builders, OEMs and end users alike.

Our valuable clients use Automation and Drives offers products primarily for:

• Distribution
• Protection
• Switching

Distribution using SIVACON Busbar trunking systems

SIVACON Busbar trunking systems CD-K, BD01, BD2, LD, LX and LR from 25A up to 6300A are used for power transmission and distribution: from the medium-voltage level through the low-voltage level down to the socket outlet.

With SIVACON busbar trunking systems, industries can meet all load requirements reliably and safely, from the transformer, via the main distribution boards, to the individual end users.

Various systems can be used depending on requirements, which mean you always get a complete solution in which the individual strengths of the systems complement each other for even greater safety, cost-effectiveness and availability. All of our Busbar Trunking Ststems are communication capable with AS-Interface, PROFIBUS and instabus EIB.

The advantages of SIVACON at a glance

• Increased safety – thanks to excellent short-circuit rating and minimal combustive energy
• Optimal cost-effectiveness – through easy planning and fast assembly
• More flexibility – in planning and operation
• Full communication capability – through open bus systems

Protection using SENTRON and SIRIUS Circuit Breakers

Moulded Case Circuit Breakers (MCCB) and Air Circuit Breakers (ACB)

For low-voltage power distribution, SENTRON covers the entire range from 16 A up to 6,300 A – offering everything from reliable switch disconnectors to our intelligent circuit-breakers 3VT, 3VL, 3WT and 3WL. Molded-case circuit-breaker 3VT and 3VL from 16 A to 1,600 A with thermal-magnetic and electronic overcurrent trip unit. Air circuit-breaker 3WL from 250 A to 6300 A with only three frame sizes, applicable worldwide.

The advantages of SENTRON at a glance

• Only a few components for all the options
• Straightforward planning, retrofitting and maintenance
• Cost-saving remote diagnosis by Internet/Ethernet
• Transparent communication via PROFIBUS-DP
• No derating at 50 °C and 55 °C

What you can expect from SENTRON:

• Flexible planning, configuration and installation thanks to a modular system
• Fast and safe work thanks to ease of use in connection and installation
• Great versatility through comprehensive range of accessories
• Compliance with international requirements ensures safety around the world
• Reliable interplay of all products and systems as part of the end-to-end Totally Integrated Automation (TIA) and Totally Integrated Power (TIP) platforms

SIRIUS Motor Protection Circuit Breakers

Protect your valuable Motors using SIRIUS

Nowadays, three-phase motors represent the most favored type of drive concept. Direct starting or star-delta starting is, in many cases, not the best solution. Such methods often result in unpleasant side-effects such as mechanical impacts inside the machine or voltage dips in the power supply system.

Our SIRIUS family of soft starters is a comprehensive range of products covering all the standard and high-feature motor-starting applications. The advantages of soft start-up and smooth ramp-down with these devices can therefore be exploited in the most varied of applications for simple and economically efficient machinery and equipment layouts.

SIRIUS 3VU and 3RV circuit-breakers are compact, current-limiting circuit-breakers. They ensure safe shutdown in the event of a short-circuit and protect loads and plants against overload. Furthermore, they are also suitable for manually switching loads under field conditions and safely isolating the plant from the main power supply when maintenance work or modifications need to be under- taken.

Just like all SIRIUS devices, the circuit-breakers are suitable for side-by-side mounting up to 60 °C. In addition to the usual CLOSED/OPEN circuit-breaker positions the TRIPPED position is also indicated. SIRIUS circuit-breakers can be connected easily and without any wiring to the SIRIUS contactors and soft starters through a link module.

The clear, structured range is electrically, mechanically and optically harmonised to the other families of SIRIUS devices - contactors,soft starters and overload relays.

The SIRIUS Soft Starters; a gentle approach is always the best.

Switching with SIRIUS magnetic contactors

Switching with SIRIUS means high contact reliability and increased service life and application options under extreme conditions. All Sirius Magnetic contactors are suitable as stand-alone devices, as modules for complete load feeders and for installation in low-voltage distribution boards/switchgear.

Air Contactors for Switching Motors

The three-pole 3TF and 3RT contactors are admirably suited for one of the most generally encountered applications - switching 3-phase motors. The complete power range from 3 to 250 kW/400 V (AC/DC operation), is covered by just seven sizes.

Vacuum Contactors for Heavy Duty Motors

For applications where an extremely high electrical service life is important, for heavy-duty starting or for applications with 1000 V the 3RT12 vacuum contactors are the right choice.

Hoisting Duty Contactors for Cranes

For hoisting applications where an extremely high mechanical service life is important, for frequent starting 3TF5 series contactors are the right choice.

Capacitor Duty Contactors

3TF3 and 3RT16 capacitor contactors are used to switch power capacitors which are used 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 life time.

These contactors are available in sizes S00, S0 and S3 and can generally be equipped with the standard accessories of the basic devices.

Contactor Relays

3TH and 3RH series Contactor relays are switching devices for control and auxiliary circuits and are used to control, provide signals and interlock switching devices and switchgear panels. They are designed for AC or DC operation and are available with screw or spring-loaded technology. The basic version of the contactor relays has 4 poles but this can be extended up to 8 poles using auxiliary contact blocks which can be snapped-on.

SIRIUS Overload Relays

An overload, phase unbalance or phase failure result in an increase of the motor current beyond the set motor rated current. If overload, phase imbalance or phase failure occur in the main circuit. SIRIUS overload relays up to 630 A with internal power supply have been designed for current dependent protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure.

In addition to current-dependent protection of loads against excessive temperature rises due to overload, phase unbalance and phase failure, the overload relays also allow internal ground-fault detection (not possible in conjunction with wye-delta assemblies). This provides protection of loads against high-resistance short-circuits due to damage to the insulation material, moisture, condensed water etc.

LV HRC Fuse Systems

Our low voltage fuses provide protection against overloads and short circuits for cables, equipment and short circuits for cables, equipment and plants – avoiding damage and subsequent costs. They have a very high breaking capacity, compact dimensions, precisely graded selectivity and are very easy to install and maintain.

LV HRC Fuse System features

• Fuse link with combi-indicator
• Can be read from any angle
• Size 000, 00, 0, 1, 2, 3, 4
• Utilization category gG, gR, aM, aR
• Rated voltage 400 V AC, 500 V AC, 690 V AC
• Rated current 10 – 1250 A

Miniature Circuit Breakers

This range of circuit protection devices provides extensive line protection in residential, functional and industrial buildings.

The MCBs have a high rated short-circuit capacity of up to 24,000 A and excellent current limiting and selectivity for optimum plant protection and maximum availability. The various designs range offer tripping characteristics from A to E

5SX2/4 Miniature Circuit-Breaker features at a glance

• Tailor-made for applications in residential and functional buildings
• Rated short-circuit capacity: 6, 10 kA
• Rated current: 0.3 – 63 A
• Tripping characteristic: B, C
• Number of poles: 1, 2, 3 or 4 1+N, 3+N
• Mounting depth: 55mm

Delta-Vega Switches and Sockets

DELTA-VEGA products allow you to welcome into your home high levels of functionality and flexibility combined with exceptional design. There's bound to be a product to suit your taste and style.

Traditional but exclusive design, exceptionally classy material - our DELTA product ranges can provide products to suit all tastes. Simply select your favorite style – we can offer the best suited product for your taste.

History of Automation and Drives in Bangladesh

We have installed Low Voltage Automation and Control systems in more than 200 large and medium size industrial and infrastructure projects. Textile, Pharmaceuticals, Tobacco, Cement, Food and Beverage industries are benefited with our broad portfolio of Control and Distribution Products, Standard Drives and Automation systems. We provide industry specific automation solution using SIMATIC and WIN CC software.

For more please visit www.ad.siemens.com