Siemens 3SK1111-1AB30 Sirius Safety Relay 24V AC/DC 3NO+1NC Used

Siemens SIRIUS 3SK1111-1AB30 safety relay basic unit for autonomous safety applications, in good used condition. Provides three safety relay enabling contacts and one signaling contact at 24 V AC/DC.

Item details

• Brand: Siemens

• Series: SIRIUS 3SK1

• Model: 3SK1111-1AB30

• Type: Safety relay basic unit, standard series, screw terminals

• Function: Relay enabling circuits 3 NO safety contacts + 1 NC signaling contact

• Supply voltage: 24 V AC/DC (control supply)

• Rated insulation voltage: 300 V; impulse withstand voltage 4 kV (per label/datasheet)

• Rated switching current: up to 5 A (AC-15 / DC-13, see label for details)

• Protection: IP20, finger‑safe housing

• Standards/approvals: IEC/EN 60947‑5‑1, UL Listed, CSA, CE (per label)

• Country of manufacture: Germany (marked on label)

Condition

• Used, removed from a working installation

• Light cosmetic wear and dust on housing from normal use and storage

• Label intact and readable; terminals appear clean with no obvious damage

• No original packaging, manual or accessories included – unit only

Notes

• Model has front indicators for failsafe status and device output plus start/auto‑monitored selector, as shown in photos.

• Buyer should verify suitability for their safety circuit design and application based on the official Siemens documentation and local safety standards.

• Professional installation and commissioning by a qualified technician is strongly recommended.