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Siemens 3SK1213-2AL20 — Safety Relays

Siemens 3SK1213-2AL20 SIRIUS Safety Relay, 10 A, 121.6 mm

MPN3SK1213-2AL20
Active

Siemens SIRIUS safety relay output expansion, 3SK1213-2AL20, 10 A contacts, 121.6 mm depth, spring-loaded terminal, UL approved.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3SK1213-2AL20 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationOutput expansion
Product design / configurationRelay enabling circuits
3SK1213-2AL20 — Safety ratings
ParameterValue
Category (EN ISO 13849-1)4
PFHd, high demand rate (EN 62061)1E-9 1/h
Hardware fault tolerance (IEC 61508)1
Stop category (EN 60204-1)0
Safety device type (IEC 61508-2)Type A
3SK1213-2AL20 — Outputs & contacts
ParameterValue
Safety-related instantaneous contacts3
Safety-related delayed contacts0
Signaling-function instantaneous contacts0
Max. operating frequency360 1/h
3SK1213-2AL20 — Electrical
ParameterValue
Rated insulation voltage300 V
Rated surge voltage withstand4 000 V
Control supply voltage type (AC/DC)AC
Required output short-circuit protection (fuse / MCB)gL/gG: 16 A or MCB type A: 6 A or MCB type B: 4 A or MCB type C: 4 A
3SK1213-2AL20 — Connection
ParameterValue
Type of electrical connectionspring-loaded terminal (push-in)
Conductor cross-section, solid1x (20 ... 16), 2x (20 ... 16)
Conductor cross-section, stranded1x (20 ... 16), 2x (20 ... 16)
Conductor cross-section, with ferrule1x (0.5 ... 1.5 mm²), 2x (0.5 ... 1.5 mm²)
Plug-in socket connectionNo
3SK1213-2AL20 — Mechanical
ParameterValue
Touch protection against electric shockfinger-safe
Fastening methodscrew and snap-on mounting
Mounting positionon horizontal standard DIN rail
Width90 mm
Height100 mm
Depth121.6 mm
3SK1213-2AL20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-40 ... +80 °C
Relative humidity, operating10 ... 95 %
Enclosure protection rating (IP)IP20
Installation altitude, max.4 000 m; Derating, see Product Notification 109792701
Shock resistance5 g / 10 ms
Vibration resistance (IEC 60068-2-6)5 ... 500 Hz: 0.75 mm
Air pressure (SN 31205)900 ... 1 060 hPa
EMC / emitted interference standardsIEC 60947-5-1, IEC 61000
3SK1213-2AL20 — Approvals
ParameterValue
UL approvalYes

Product details

The Siemens 3SK1213-2AL20 is a SIRIUS safety relay output expansion module, designed for enabling circuits in safety-related applications. It carries 10 A contacts at 24 V, 115 V, and 230 V, with a total current maximum of 30 A across all contacts. The response time is a fixed 15 ms, typical and maximum — no delayed switching variant.

Mounts on a horizontal standard DIN rail via the screw-and-snap-on fastening method. The spring-loaded push-in terminals accept solid conductors 1x (20…16 AWG) or 2x (20…16 AWG), and stranded with or without ferrule 1x (0.5…1.5 mm²) or 2x (0.5…1.5 mm²). The 90 mm width and 100 mm height fit a standard panel layout.

Shock resistance is 5 g / 10 ms. Pollution degree 3, overvoltage category 3. EMC compliance per IEC 60947-5-1 and IEC 61000. UL approval is confirmed.

Frequently asked questions

Where can I buy 3SK1213-2AL20?

This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

What is the depth of 3SK1213-2AL20?

The depth is 121.6 mm.

What solid conductor sizes does the terminal accept?

The spring-loaded terminal accepts solid conductors 1x (20…16 AWG) or 2x (20…16 AWG).

Does 3SK1213-2AL20 have UL approval?

Yes, UL approval is confirmed.

MPN
3SK1213-2AL20