Previous in Forum: Current Harmonics Versus Voltage Harmonics   Next in Forum: Life Span of Contactors
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
PALER
Active Contributor

Join Date: Feb 2014
Posts: 10

Instantaneous Relay for Railway Applications

11/30/2023 3:36 PM

Hi All

I am searching for a supplier that may have shorter lead times than what I have been quoted for instantaneous relays.

We are supplying a traction substation for a metro project. In our scope there is an emergency stop device which will be integrated with SCADA. The spec calls for instantaneous relays for railway applications. We have found them but with a 40 week lead time.

I kindly ask if anyone knows of a supplier who may have these in stock or on short delivery. We are looking for the following:

2 ea. Mors Smitt (or equivalent) N.S1-L-24-12.0.8
2 ea. Mors Smitt (or equivalent) N.S1-P-24-12.0.8

Any lead is greatly appreciated.

Thanks,

Tito
Register to Reply
Pathfinder Tags: instataneous railway Relay scada
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
SolarEagle
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#1

Re: Instantaneous Relay for Railway Apllications

11/30/2023 4:28 PM

Might be able to find some here....

https://www.radwell.com/Shop?

__________________
 All living things seek to control their own destiny....this is the purpose of life
Register to Reply
PALER
Active Contributor

Join Date: Feb 2014
Posts: 10
#2
In reply to #1

Re: Instantaneous Relay for Railway Apllications

11/30/2023 4:57 PM

Many thanks, will contact them
Register to Reply
gideon
Power-User

Join Date: Jan 2007
Location: Johannesburg, South Africa
Posts: 230
Good Answers: 16
#3

Re: Instantaneous Relay for Railway Apllications

12/01/2023 3:54 AM

That is strange - according Mors Smitt , this relay is a vital relay from their signalling line, so it is interesting that it is specified for a traction substation.

"The N.S1-L-24-12.0.8 24 VDC instantaneous electro-mechanical vital relay is a track side safety relay for the signalling railway market. It is a dual module «plug-in relay» with positive mechanical keying, equipped with 12 normally open contacts and 8 normally closed contacts."

I would suggest that you contact signalling equipment manufacturers for equivalents, such Siemens, Bombardier, Alstom, etc.

Alternatively, ask the client if they have alternate suppliers, assuming that they have other similar installations. Or get their formal approval for a similar but non-vital relay (that will be about 10 times cheaper as well!), especially if the rest of the circuit contains non-vital components.
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#4

Re: Instantaneous Relay for Railway Apllications

12/01/2023 7:08 AM

Try these:

www.trackwork.co.uk

Unipart Rail

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Register to Reply
Have a Different Question?
4 comments
Copy to Clipboard

Users who posted comments:

gideon (1); PALER (1); PWSlack (1); SolarEagle (1)

Previous in Forum: Current Harmonics Versus Voltage Harmonics   Next in Forum: Life Span of Contactors

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (74 right now)
Show Members
Advertisement