L.V Spare Parts

We offer comprehensive solutions for manufacturing and processing industries as well as standard products and systems for industrial applications,office and residential buildings and defence projects. Targeting the electrical contracting & construction industries we offer high quality distribution equipment from 0.5A to 3200A in harmony with this a building management system. These help in providing both control and protection for residential and commercial projects.

 

Fuse Systems
Miniature Circuit Breakers
Residual Current operated Circuit Breakers
Modular Devices
Insulation & Monitoring Devices
Stratum Distribution Boards
Circuit Breakers

 

 

 

 

 

 

 

Fuse Systems
Fuses are used in a wide range of applications, extending from residential installations to installations in commercial buildings and industrial installations to installations in power supply companies.
Siemens offers an appropriate range of covers and phase barriers to provide these fuses with shock-hazard protection.
Features

clip_image001.gif (267 bytes)

Low rated power losses for high economy and minimal heating

lv-fuses.jpg (11822 bytes)

clip_image001.gif (267 bytes) Safe rated breaking capacity from the lowest inadmissible
overload current up to the highest short-circuit current
clip_image001.gif (267 bytes) High current limiting to protect every part of the system installation
clip_image001.gif (267 bytes) High resistance towards aging to avoid unnecessary system malfunctions
clip_image001.gif (267 bytes) Constant characteristics even in different temperature conditions
clip_image001.gif (267 bytes) Wide range of practical accessories also to enhance shock-hazard
protection

 

 

 

 

 

 

Miniature Circuit Breakers
MCBs primarily protect cables and conductors against overload and short circuit. They also protect electrical equipment against overheating.Further, due to the fixed rated current settings of MCBs, it is also possible to protect motors in a limited form.

 

Features
clip_image001.gif (267 bytes) High rated breaking capacity up to 10 000 A                  mcb.jpg (11577 bytes)
clip_image001.gif (267 bytes) Add-on accessories, quick mounting on site using snap-on mechanism
clip_image001.gif (267 bytes) Combined terminal allows busbar and feeder cable to be simultaneously
connected
clip_image001.gif (267 bytes) Separate switch position indicator (5SX7)
clip_image001.gif (267 bytes) Insertion guide for fast and easy access to the terminal
clip_image001.gif (267 bytes) Handle locking device effectively prevents unauthorized operation

 

 

 

Residual Current Operated Circuit Breakers
Protection against indirect contact (indirect personnel protection). Protection is provided by disconnecting hazardous high touch voltages caused by a short circuit to exposed conductive parts of equipment.              rcbo.jpg (11997 bytes)
When using RCCBs with IDn  30 mA, protection from direct contact (direct personnel protection) is also provided. Supplementary protection measure by disconnection when normally live parts are touched.
While RCCBs for a rated fault current ID> 30 mA provide protection against indirect contact, by installing RCCBs with ID£ 30 mA, a high level of additional protection is achieved against unintentional direct contact with live parts.

 

 

 

 

 

 

Modular Devices
The usual contact description, such as “16 A cos j = 1 or AC-1”, is not sufficient when configuring lighting systems. Excessive inrush currents result in contact welding, which means that the devices can no longer be switched off.
For example, an extremely wide range of contacts is used for the modular devices:
clip_image001.gif (267 bytes) Contactor contacts with a contact opening >3 mm, as for contactors             modular.jpg (12782 bytes)
clip_image001.gif (267 bytes) Relay contacts with a contact opening >3 mm, as for the remote switches
clip_image001.gif (267 bytes) Manually operated contacts with a contact opening >3 mm, like the
disconnectors
clip_image001.gif (267 bytes) Relay contacts with micro contacts (>0.5 mm contact opening), for
example which are used for PC boards in electronic devices.

 

 

 

 

Insulation & Monitoring Devices
Electrical equipment for rooms used for medical purposes, e.g. hospitals, doctors’ surgeries and also for home dialyses are subject to special requirements. The health or the life of a patient can be endangered, even if an extremely low current flows through the human body. This danger exists when electromedical equipment is used to treat, examine or monitor the patient.

insulator.jpg (11924 bytes)

Therefore, electrical installations in rooms used for medical purposes must incorporate additional protective measures.  This involves protective measures using an IT network with insulation monitoring. With this protective measure, when the first fault occurs, the supply is not disconnected and safe operation can continue.

 

 

 

 

 

 

 

Stratum 400 Three Phase Distribution Boards
In functional buildings, where rated operating currents up to 250 A are possible, the MCB circuit-breakers of the 5SX2 series are installed on a vertically mounted rail system in the STRATUM 400. Models are available offering from 4 to 24 ways.

 

Features
clip_image001.gif (267 bytes) Removable gland plates and cut-away side channels provides easy access

sta400.jpg (10111 bytes)

and speeds installation time.
clip_image001.gif (267 bytes) With all the main circuits totally insulated the installer has total protection
from live circuits.
clip_image001.gif (267 bytes) Flush gland plate fixing at the top and bottom allow additions of modular
enclosures, housing larger incoming devices or control devices .
clip_image001.gif (267 bytes) Cable access under the pan assembly helps reduce installation time and
simplifies routing of cables into conduit.
clip_image001.gif (267 bytes) The distribution board comes complete with 9 insulated busbar shrouds
and aperture blanks.
clip_image001.gif (267 bytes) 100 A devices fix directly onto main busbar for optimum electrical connection.

 

Stratum 500 Three Phase Distribution Boards
clip_image001.gif (267 bytes) 250 A or 400 A busbar

sta500.jpg (10023 bytes)

clip_image001.gif (267 bytes) IP 30
clip_image001.gif (267 bytes) Outgoing MCCBs 16 A to 100 A 18 kA rating
clip_image001.gif (267 bytes) Incomer supplied fitted as standard
clip_image001.gif (267 bytes) Suitable for top or bottom entry
clip_image001.gif (267 bytes) Supplied with earth and neutral connectors (1 per TP way).

 

Stratum 600 Three Phase MCCB Distribution Boards
clip_image001.gif (267 bytes) Main busbars fault rated up to 35 kA for 1 sec RMS, SYM at 415 V, 50 Hz.

sta600.jpg (10116 bytes)

clip_image001.gif (267 bytes) IP 40
clip_image001.gif (267 bytes) Fully segregated construction conforming to BS EN 60 439-1.
clip_image001.gif (267 bytes) Fabricated from 1.5 mm thick sheet, rust protected and epoxy/polyester
powder coated light grey to RAL 7035.
clip_image001.gif (267 bytes) Full complement of accessories, meterpacks, cable spreader boxes,
side mounting cable box, floor mounting plinth, extension enclosures
clip_image001.gif (267 bytes) Dead front cover and lift off hinged door.
clip_image001.gif (267 bytes) Electroplated busbars available on request for export applications.

 

 

 

 

 

Circuit Breakers
Siemens circuit-breakers can take on any switching and protection function in AC or DC networks and they are designed to meet the most demanding requirements and make a significant contribution to reliable protection of the energy supply in electrical plants, buildings, power stations,water stations, ships or drilling rigs.
The Siemens circuit-breaker family comprises units designed for widely differing power ranges, e. g. current limiting circuit-breakers up to 2500 A,100 kA or open circuit-breakers for rated currents up to 6300 A, 100 kA at full selectivity.

 

3VF Circuit Breakers
The 3VF circuit-breakers in compact form meet the latest stringent requirements on overload and short-circuit protection for nominal currents of up to 2500 A. Various circuit-breaker variants with different switching capacities optimized for special types of applications ensure that a solution is always available that is optimally adapted to specific switching and protection tasks as regards economy.

 

Features
clip_image001.gif (267 bytes) compact circuit-breaker

3vf3.jpg (12965 bytes)

clip_image001.gif (267 bytes) matching the short-circuit current at the installation site to
optimize economy
clip_image001.gif (267 bytes) for installation and motor protection and starter assemblies
clip_image001.gif (267 bytes) rated currents from 10 to 2500 A and operational voltages up
to 690 V AC 
clip_image001.gif (267 bytes) switching capacity up to100 kA for up to 415 V
clip_image001.gif (267 bytes) suitable for use in any climate
clip_image001.gif (267 bytes) wide range to choose from 3 & 4 poles and mounting version

 

 

3WS1 Circuit Breakers
3WS1circuit-breakers are  intended for use in enclosed areas, where excessive operating conditions do not occur (e.g. no dust, aggressive vapors or harmful gases). The permissible ambient temperatures and the associated rated currents for different ambient temperatures are listed in the technical data.In case of heavy short-circuits the operators are not endangered even when the installation door is open.

 

Features
clip_image001.gif (267 bytes) High level of safety for personnel when switching on existing

3ws1.jpg (13411 bytes)

short-circuits.
clip_image001.gif (267 bytes) High number of short-circuit breakings and electrical endurance.
clip_image001.gif (267 bytes) Environment friendly, since no arcing gases are emitted.
clip_image001.gif (267 bytes) For rated voltages up to 1000 V.
clip_image001.gif (267 bytes) Low-maintenance circuit-breakers: The vacuum interrupters are
maintenance-free.
clip_image001.gif (267 bytes) Optional feed-in from top or bottom
clip_image001.gif (267 bytes) Univocal switching-state indicator with auxiliary signaling contact

 

 

3WN6 Circuit Breakers
The 3WN6 circuit-breakers are climate-proof . They are intended for use in enclosed areas where excessive operating conditions do not occur.Further these breakers can be further classified as fixed mounted and withdrawable versions. The circuit breakers are supplied with manual operating mechanism and motorized operating mechanism.

 

Features
clip_image001.gif (267 bytes) Locking of withdrawable circuit-breaker to prevent it from being moved.

3wn6.jpg (13577 bytes)

clip_image001.gif (267 bytes) Clear position indicator with auxiliary switch for signalling.
clip_image001.gif (267 bytes) Many components can be easily exchanged later on, so that the
circuit-breaker can meet future new requirements.
clip_image001.gif (267 bytes) The internationally standardized PROFIBUS is used to transfer  data 
to central computers.
clip_image001.gif (267 bytes) The low power requirement of the electrical components reduces the
cost of control transformers.
clip_image001.gif (267 bytes) High performance with limited space requirement.
clip_image001.gif (267 bytes) Optional feed-in from top or bottom.