<![CDATA[IRSE Exam Forum - Relays]]> https://irse.signalpost.org/ Mon, 04 May 2026 17:42:42 +0000 MyBB <![CDATA[2014 Q8 Design of Relays suitable for environment]]> https://irse.signalpost.org/showthread.php?tid=2275 Wed, 21 Feb 2018 15:15:14 +0000 steak]]> https://irse.signalpost.org/showthread.php?tid=2275 Should've used black ink, apologies.

Second part of question is worth 5 marks. Struggled to come up with answers here. only took 20 minutes so that was encouraging. Will start recording times taken as well to gauge progress and answering efficiency.
[attachment=2199][attachment=2200]

thanks]]> Should've used black ink, apologies.

Second part of question is worth 5 marks. Struggled to come up with answers here. only took 20 minutes so that was encouraging. Will start recording times taken as well to gauge progress and answering efficiency.
[attachment=2199][attachment=2200]

thanks]]> <![CDATA[3 types of NS1 relay]]> https://irse.signalpost.org/showthread.php?tid=2170 Fri, 06 Jan 2017 04:44:36 +0000 onestrangeday]]> https://irse.signalpost.org/showthread.php?tid=2170 Hello Signalling Professionals:

Recently I have a chance to look the circuit diagram for these 3 different types of NS1 relays, they are N.S1-R-24-4.0.4, N.S1-L-24-4.0.4, N.S1-P-24-4.0.4.
 
Can anyone share what is the usage and difference between these 3 types of relay?
(since they are all working at 24 volts, 4 NO & 4 NC)
 
 
Thanks
 
 
 ]]> Hello Signalling Professionals:

Recently I have a chance to look the circuit diagram for these 3 different types of NS1 relays, they are N.S1-R-24-4.0.4, N.S1-L-24-4.0.4, N.S1-P-24-4.0.4.
 
Can anyone share what is the usage and difference between these 3 types of relay?
(since they are all working at 24 volts, 4 NO & 4 NC)
 
 
Thanks
 
 
 ]]> <![CDATA[N.S1-P-24-4.16.4]]> https://irse.signalpost.org/showthread.php?tid=1812 Wed, 03 Sep 2014 06:50:22 +0000 nagaraju.a@etoerail.com]]> https://irse.signalpost.org/showthread.php?tid=1812
Can anyone help in finding specification for N.S1-P-24-4.16.4 type relay.
If necessary circuit provided, will be very useful.
N.S1-P-24-4.16.4 latch relay used in SANTIAGO,MTR-HK etc...,
Looking for prompt response]]>
Can anyone help in finding specification for N.S1-P-24-4.16.4 type relay.
If necessary circuit provided, will be very useful.
N.S1-P-24-4.16.4 latch relay used in SANTIAGO,MTR-HK etc...,
Looking for prompt response]]>