**Part No**: 3SK1122‑2AB40
**Type**: SIRIUS Advanced Safety Relay Basic Unit, solid‑state outputs, push‑in spring terminals
– Supply voltage: **24 V DC** (0.8‑1.2 Un)
– Safety outputs: **3 instant solid‑state safety outputs**, 1 instant signalling output; semiconductor output 2 A @24 V DC‑13
– Safety level: **SIL3 (IEC 61508)**, **PL e / Cat.4 (EN ISO 13849‑1)**
– Input: Support 1‑channel / 2‑channel sensor, cross‑circuit detection; Auto‑start / Monitored‑start selectable
– Mount: DIN rail snap‑on, any mounting position; **22.5 mm width**, IP20
– Feature: Emergency‑stop, safety‑door, light‑barrier monitoring; expandable via 3ZY12 connector
Siemens Safety Relay 3SK1122-2AB40 Specifications
| Part No | 3SK1122‑2AB40 |
|---|---|
| Type | SIRIUS Advanced Safety Relay Basic Unit, solid‑state outputs, push‑in spring terminals |
| Supply voltage | **24 V DC** (0.8‑1.2 Un) |
| Safety outputs | **3 instant solid‑state safety outputs**, 1 instant signalling output; semiconductor output 2 A @24 V DC‑13 |
| Safety level | **SIL3 (IEC 61508)**, **PL e / Cat.4 (EN ISO 13849‑1)** |
| Input | Support 1‑channel / 2‑channel sensor, cross‑circuit detection; Auto‑start / Monitored‑start selectable |
| Mount | DIN rail snap‑on, any mounting position; **22.5 mm width**, IP20 |
| Feature | Emergency‑stop, safety‑door, light‑barrier monitoring; expandable via 3ZY12 connector |
About the Siemens Safety Relay 3SK1122-2AB40
The Siemens Safety Relay 3SK1122-2AB40 is a electrical products used in industrial automation, control and power systems. It is rated at Part No 3SK1122‑2AB40, Type SIRIUS Advanced Safety Relay Basic Unit, solid‑state outputs, push‑in spring terminals, Supply voltage **24 V DC** (0.8‑1.2 Un). This electrical products is supplied as new, original industrial-grade stock. Each unit is identified by manufacturer part number Siemens Safety Relay 3SK1122-2AB40 for accurate procurement and cross-referencing.
Why source the Siemens Safety Relay 3SK1122-2AB40 from HDE123
- Verified part number: every Siemens Safety Relay 3SK1122-2AB40 is checked against its manufacturer specification before shipment.
- 8 confirmed technical parameters available on this page for engineering review.
- Global delivery with clear lead time and commercial invoice for B2B buyers.
- Fast B2B support: send us the equipment model or an existing part number and our engineers confirm compatibility before you order.
Ordering the Siemens Safety Relay 3SK1122-2AB40
To order the Siemens Safety Relay 3SK1122-2AB40, add it to your cart and complete checkout, or use the Request a Quote form for volume purchases and replacement / cross-reference enquiries. Lead time: typically 3–10 working days for in-stock items, subject to confirmation. Worldwide shipping is available and a commercial invoice is provided for customs.