[PSES] fusing outputs of small power supplies

2014-12-23 Thread Bob LaFrance
Greetings, I am curious to know what guidelines to use when fusing power supplies. I have a machine with some small 4amp 24v power supplies. I have placed breakers on the input side of supplies. I don't know if the current limit circuits within the power supply can be expected to protect

Re: [PSES] fusing outputs of small power supplies

2014-12-23 Thread Doug Powell
@LISTSERV.IEEE.ORGReply To: Bob LaFranceSubject: [PSES] fusing outputs of small power supplies Greetings, I am curious to know what guidelines to use when fusing power supplies. I have a machine with some small 4amp 24v power supplies. I have placed breakers on the input side of supplies. I

Re: [PSES] fusing outputs of small power supplies

2014-12-23 Thread John Woodgate
In message 2313bb439627e348a579b7b3f41d9c143d326...@newcastle.creare.com, dated Tue, 23 Dec 2014, Bob LaFrance b...@creare.com writes: I am curious to know what guidelines to use when fusing power supplies.  I have a machine with some small 4amp 24v power supplies.  I have placed breakers

Re: [PSES] fusing outputs of small power supplies

2014-12-23 Thread Doug Powell
outputs of small power supplies Greetings, I am curious to know what guidelines to use when fusing power supplies. I have a machine with some small 4amp 24v power supplies. I have placed breakers on the input side of supplies. I don't know if the current limit circuits within the power

Re: [PSES] fusing outputs of small power supplies

2014-12-23 Thread Scott Aldous
outputs of small power supplies Greetings, I am curious to know what guidelines to use when fusing power supplies. I have a machine with some small 4amp 24v power supplies. I have placed breakers on the input side of supplies. I don’t know if the current limit circuits within the power

Re: [PSES] fusing outputs of small power supplies

2014-12-23 Thread Richard Nute
From: Bob LaFrance [mailto:b...@creare.com] Sent: Tuesday, December 23, 2014 10:40 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] fusing outputs of small power supplies Greetings, I am curious to know what guidelines to use when fusing power supplies. I have a machine with some small 4amp

Re: [PSES] fusing outputs of small power supplies

2014-12-23 Thread Brian Oconnell
@LISTSERV.IEEE.ORG Subject: Re: [PSES] fusing outputs of small power supplies Hi Bob: You have three issues to deal with: 1)  Regulatory - standards and codes; 2)  Safety; 3)  Reputable manufacturer. For regulatory, see IEC/EN/UL/CSA 60950-1, Tables 2B and 2C.  These two tables define a NEC Class