Product category:
Power Supplies and Uninterruptible Power Supplies
News Release from: BSL Engineering | Subject: Siemens SITOP power supplies
Edited by the Engineeringtalk Editorial
Team on 07 February 2001
Stabilised 24V DC from any mains voltage
worldwide
Manufacturers can protect the efficiency of their processes by ensuring stabilised and optimised power supplies with the Siemens SITOP unit from BSL Engineering
Manufacturers can protect the efficiency of their processes, and machine builders can safeguard the operation of their machines, by ensuring stabilised and optimised power supplies with the Siemens SITOP unit from BSL Engineering The extremely compact SITOP range of power supplies provides stabilised 24V DC outputs in the range 2A to 40A from inputs ranging from 120V AC to 550V AC
This means that the units cater for all worldwide mains voltages, whether they be in Europe, the Indian subcontinent, South America or the Pacific Rim.
The stabilisation, which the SITOP units provide, benefits users greatly in terms of longer life for connected loads, reduced heat development and greater operating safety.
The modular design of the power supplies also provides security against damaging mains power failure, courtesy of an additional DC-UPS module.
This employs external storage batteries to ensure a load current of up to 40A is applied for an established time period in the event of failure.
A new switching concept ensures that the transition from AC to the back-up power line is totally smooth and uninterrupted.
The high efficiency of the SITOP design, up to 90%, guarantees much reduced power consumption, and also delivers savings in leakage current of up to 10%.
Furthermore, the SITOP supplies optimally control network failures, overvoltage surging or HF interference and the normal current remains absolutely constant up to a temperature of 60oC.
Each of the SITOP units complies with international standards including the new EN 61000-3-2 standard for harmonic current emissions.
This important standard is being introduced because of the proliferation of electronic equipment and the increasing problems posed by harmonics on public low voltage distribution networks.
Although the EN 61000-3-2 specification is not being implemented on a European basis until January 2001, the new SITOP Power Supplies are already completely compatible.
This means that designers and manufacturers of electronics systems can benefit by using power supplies, which are already "future-proofed".
A number of mounting options are available for the SITOP units, these designed to suit the user's instrumentation and wiring configurations.
All of the new SITOP power supplies, including the 40A unit, can be mounted directly onto DIN rail or, if a smaller footprint is necessary, attached via mounting brackets.
Maximum utilisation of space was a major consideration when the SITOP range was developed.
This is evident particularly in the design of the 5A and 10A low profile models, both being ideal for applications where space is at a premium.
A new, recent addition to the SITOP range features two, floating 15 Volt outputs from a single unit.
Applications requiring a positive and negative, dual voltage supply, for example; laser mirrors, transducers and operational amplifiers, can now benefit by using only half the number of power supply units required previously.
The new SITOP Power Dual 15 Volts can be used with 120V or 230V AC systems and is designed specifically for operation in harsh industrial environments.
Installation is extremely fast; the power supply simply snap mounts onto a DIN rail giving access to terminals at the front of the unit.
To maximise reliability and safety, the SITOP Power Dual 15 Volts includes no load and continuous short circuit protection.
The inputs and outputs are also isolated from each other.
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