Product category:
Power Supplies and Uninterruptible Power Supplies
News Release from: Puls UK | Subject: SilverLine Redundancy power supplies
Edited by the Engineeringtalk Editorial
Team on 05 February 2001
N+1 redundant power supplies on the DIN
Rail
N+1 redundant power supplies are now available as inexpensive solutions for DIN Rail with the introduction of the SilverLine Redundancy (SLR) range from Puls
N+1 redundant power supplies are now available as inexpensive solutions for DIN Rail The N+1 redundant units are a recent branch of the SilverLine family and are being introduced as the SilverLine Redundancy (SLR) range
This article was originally published on Engineeringtalk on 10 Nov 2000 at 8.00am (UK)
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Power supply 40% smaller than corresponding units
The SL10.300 from PULS is currently the smallest 240W 3 phase power supply unit available on the market, at about 40% smaller than corresponding units of its class
The SilverLine Family has since its appearance three years ago really infiltrated the market.
SilverLine's success is attributable to characteristics such as high reliability, simple mounting and integration, long lifetime and almost revolutionary cost-effectiveness.
Now SilverLine offers another, novel characteristic - the ability of redundancy.
Further reading
More developments to DIN Rail power supply
With the new SL20.310 (24-28V/20 or 25 A) Puls has now issued the latest version of its power supply classic, first introduced to the DIN-Rail market by the Munich-based company five years ago.
Power unit integrates primary and secondary fuses
Power supply specialist Puls has launched a three-phase, extremely compact 240W standard power unit which needs no fuses on the primary or secondary side and provides for unrestricted two phase use
At the higher end of the performance range (up to 1000 W), PULS has introduced two separate Redundancy units the SLR01 and SLR02.
The SLR01 for the SL40 (24-28 V/40A) and the SLR02 for SL20 (24-28V/20A) and the SL30 (24-28 V 30A).
The SLR01 and SLR02 permits interconnection of identical units for redundancy.
The modules de-couple the power supply outputs from each other (and provide efficient cooling of the de-coupling diodes), so that in case of failure one power supply unit cannot overload the other unit(s).
They also monitor the output voltage with Ready-Relay contacts, so that the status of the power supply units can also be viewed from a remote location.
The SLR01 and SLR02 have approximately the same dimensions as a SL2.5 (48 x 125 x 188mm and 103mm respectively) and like the whole SilverLine range are in sealed metal housing with screw terminals and robust DIN Rail mount.
Three power supply units cater for power requirements at the lower and middle power range: SLR2.5 (24V/2.5A), the SLR5 (24-28V/5A) and the SLR10 (24-28V/10A).
They enable via de-coupling at output, a passive load sharing (which lessens unit stress and thereby increases performance reliability and extends the unit's lifetime) and the condition of each unit can be monitored remotely via a RDY relay contact.
Replacement of the units is simple as they are no longer fitted with screw terminals as before but with plug connectors (hot-pluggable).
In addition, the non-redundancy versions of power supply units (SL2.5 - SL10) can be combined with de-coupling modules SLR01 and SLR02.
Thanks to passive load distribution you can also link more than two units together.
This permits - as well as redundancy - increased power on the system.
A slightly inclined characteristic (approx.
1V voltage drop between non-load operation and nominal load) ensures that all the units involved are loaded evenly and thus are working more reliably and for longer.
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