Safety Relays

Safety relays from Siemens, Schneider Electric and ABB monitor emergency stop buttons, safety gates and light curtains and de-energize the machine on demand. The range includes Siemens 3SK1 and 3SK2, Schneider Preventa XPS and Modicon TM3 Safety modules, with contact ratings from 0.5 A to 16 A. Stoklink ships worldwide from Turkey and quotes project volumes on request.

What's in this range

• Siemens SIRIUS 3SK1 and 3SK2 safety relays and expansion modules.
• Schneider Preventa XPS emergency stop modules, including delayed output versions.
• Modicon TM3 Safety modules rated up to Cat 3 PL d and SILCL 2.
• ABB safety relay modules.
• Sentry safety products.

How to choose

• Required safety level: category, performance level (PL) and SIL claim limit under ISO 13849-1 and IEC 62061.
• Input type: emergency stop, two-channel guard, light curtain or two-hand control.
• Outputs: number of safety contacts and whether delayed outputs are needed.
• Supply voltage: 24 V DC or AC/DC supply ranges.
• Reset mode: manual or automatic start, with monitored reset where the risk assessment requires it.

FAQ

Can a standard relay be used for an emergency stop?

No. Safety circuits need forced-guided contacts and internal monitoring so that a single fault is detected. A standard relay does not provide this.

What do Cat 3 and PL d mean?

They describe the architecture and reliability of the safety function under ISO 13849-1. Your risk assessment sets the required level, and the relay must meet or exceed it.

Do you export safety relays?

Stoklink ships worldwide from Turkey, EXW. Lead time depends on distributor stock, and project quantities are quoted on request.