Contact expansion device for safty relays S2 series, 4 delayed enabling current paths, 2 signaling current paths, 1 check-back current path, For applications up to safety category 4, Stop category 0, Width 22.5mm, Industrial design.
The S2K043 is a contact expansion device for the S series safety relays, offering four forced normally open contacts, two forced normally closed contacts, and one forced normally open check‑back contact. It supports applications up to safety category 4 and features green LEDs indicating the status of safety channels.
The relay is housed in self‑extinguishing plastic with an IP40 rating, mounts on a DIN‑Rail TS‑35, and operates from a 24 V DC supply. Electrical characteristics include a rated consumption of 2.7 VA, response time of 20 ms, and a reset time of 40 ms. It is designed for ambient temperatures from –25 °C to +58 °C and includes detailed mechanical and wiring specifications.
| Maximum safety category | Category 4 |
|---|---|
| IP rating | IP40 |
| Mounting | DIN‑Rail TS‑35 |
| Supply voltage | 24 V DC |
| Rated consumption | 2.7 VA |
| Response time | 20 ms |
| Ambient temperature range | -25 °C to +58 °C |
| Overall dimensions | 407.6 mm |
It supports safety categories up to category 4.
The relay operates from a 24 V DC supply.
The response time is 20 ms.