Relays with Force-Guided Contacts

When I design safety systems, I like to use relays with force-guided contacts as the interface between my safety relays and the field devices like fence and e-stop inputs on robots, etc. For the most part, where multiple contacts are required, I have been using Omron GS7A relays for these applications.

My question is this - does anybody have a preferred make/model of force-guided relay (other than the GS7A, of course)? There is nothing wrong with the model I currently use, I just like having more than one tool in my toolbox.

Steve

We use this line

http://ab.rockwellautomation.com/Safety/Relays-and-Timers


And these Contactor / Relays for larger stuff.

http://ab.rockwellautomation.com/Relays-and-Timers/700S-CF-IEC-Safety-Control-Relays#/tab5

http://ab.rockwellautomation.com/Relays-and-Timers/NEMA-Heavy-Duty-Safety-Control-Relays

There are a plenty of opitions, really. This, for exampple: http://www.sick.com/group/EN/home/p...fe_control_solutions/Pages/safety_relays.aspx

And, if you want to go for the de-facto standard, there is always Pilz.

A-B usually but Schmersal is a cost-effective brand for safety components. Quite a few choices out there but I'm usually designing to a customer spec.

Their are a couple of links on another thread about them.

http://www.plctalk.net/qanda/showthread.php?t=69583

Thanks for the responses, guys. For any who might not have quite understood, I'm pretty happy with my safety PLCs and Safety Relays already, I am looking for the force-guided relays often driven by the output of the Safety Relay.

Mickey - thanks for the link. The Phoenix Contact module referenced in that thread looks interesting. With 5NO and 2NC contacts, each rated at 6 Amps in a narrow package, this could be something I want to try.

Steve

Tyco have a range, I don't have a link, but they are now stocked by RS.