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.
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)
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
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.
