Safety relays

Relays with forcibly-guided contacts according to EN 61810-3; broad line-up from 2-pole to 8-pole types.

Best performance for all kinds of safety applications

Relays with forcibly-guided contacts simplify the design of reliable safety circuits for applications including emergency stop switches, safety controls & PLCs, elevator/escalator control, robots and railway signaling.

Discover the latest developments in SF relays

SFM super flat safety relay
Safety relay

SFM super flat safety relay

With a height of only 7.8mm, the SFM is the world’s lowest profile relay with forcibly-guided contacts (EN 61810-3). Reflow soldering capability.
SFS series: narrow width
Safety relay

SFS series: narrow width

Thanks to a slim design, SFS devices require little PCB space. A broad line-up of contact types including 2a2b, 3a1b, 3a3b, 4a2b and 5a1b is offered.
SFY series: low profile
Safety relay

SFY series: low profile

These high power, low profile devices suit safety and control applications. Broad line-up of contact types includes 2a2b, 3a1b, 4a2b and 5a1b styles.
SFN4D series: 6 pole
Safety relay

SFN4D series: 6 pole

≤8A safety relay with 4a2b contact configuration. Very long lifetime at AC15 and DC13 loads
SF2D series: 4 pole
Safety relay

SF2D series: 4 pole

≤8A safety relay with 2a2b contact configuration. Long lifetime and excellent low level load capability.
SF4D series: 8 pole
Safety relay

SF4D series: 8 pole

≤8A safety relay with 4a2b contact configuration. Very long lifetime at AC15 and DC13 loads.
SF3 series: 4 pole
Safety relay

SF3 series: 4 pole

≤8A safety relay with 3a1b contact configuration.

Find the optimal product for your project by selecting attributes and filter criteria
Go to Product Finder

Downloads

expand / collapse
Flyer
Name Size Date Language
PDF Flyer: SF Relays with Forcibly Guided Contacts 2 MB 24.10.2024 English
Shortform
Name Size Date Language
PDF Relays Short Form 2024 5 MB 19.02.2024 English
Technical information
Name Size Date Language
PDF Cautions for use - Application in Circuits 98 KB 28.02.2014 English
PDF Cautions for use - General Application Guidelines for Relays 376 KB 30.07.2014 English
PDF Cautions for use - Relay Terminology 54 KB 28.02.2014 English
PDF Cautions for use - Reliability 42 KB 28.02.2014 English
PDF Cautions for use - SMT Soldering Guidelines 67 KB 28.02.2014 English
PDF Cautions for use - Relay Soldering and Cleaning Guidelines 61 KB 28.02.2014 English

More information

New flyer SF relays
Download

New flyer SF relays

Download our new flyer: SF Relays with Forcibly Guided Contacts.
Discontinued relays
Relays

Discontinued relays

Discontinued relays / not for new application.