ACE Issue 23 2019 | Page 20

New DIN Rail AC inrush current limiters for capacitive & inductive loads P owersolve’s new PSICL series is a low-cost range of peak inrush current limiters designed for capacitive and inductive loads in a variety of applications. These include installations across complex automation systems and machinery as well as isolation transformers or LED lighting applications where they are particularly useful because you can have a large number of LED driver power supplies operating in parallel and all taking high peak currents together on switch on which can cause circuit breaker to trip. The PSICL series is a true current limiter and cuts off all peak currents when starting loads under practically every AC condition. Extreme conditions can occur on AC lines in the event of a break in the supply and when power returns, high current peaks can often cause havoc and will trip circuit breakers. 20 In decentralised areas, this will often lead to increased maintenance costs as the breakers require re-setting. Both items are DIN Rail mounted and internal circuitry is identical for both versions. The PSICL current limiter prevents this happening and can result in reduced cable cross section used and smaller and faster circuit breakers. We also have the existing full ESB101 range of inrush current limiters available which are suitable for applications from 16A to 30A single phase input, in either 115VAC or 230VAC voltage input versions. These are suitable for capacitive loads such as LED lighting etc. The PSICL Series is available in three 230VAC single phase models with continuous operating current rating of 12A, 16A and 25A. Current limiting time is 100-500mS with repeat intervals of 1000mS. They have an operating temperature range of --40ºC to +70ºC and conform to EN60950-1 and EN61000-6-2,3 standards and are CE and RoHS. MTBF figures are 300,000 hours. The PSICL is a housed in a low profile V0 flammability rated plastic case measuring 91H x 71W x 57Dmm. The same design designated PSESB Series is also available in a very slim width enclosure with measurements of 100H x 22.5W x 112Dmm. Also available are 3 phase AC input versions of 16A and 32A continuous rating. The ESB00163 (16A) and ESB00323 (32A) three phase input series operate with input voltages of 200, 400 & 500VAC and are for inductive and capacitive loads. Full data sheets on all models are available on the website at the following link. https://powersolve.co.uk/product- category/inrush-current-limiters www.powersolve.co.uk