Siemens 3TK2810-1KA42
MPN3TK2810-1KA42
Active
SIRIUS safety relay Safety-oriented Speed monitoring 110-240 V AC/DC, 45 mm overall width Spring-type terminal EC instantaneous: 2 NO EC delayed: 0 SC: 2 electrical Auto-start/manual start Basic device Maximum achievable PL according to EN 13849-1: e Maximum achievable SIL according to IEC 61508: 3
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product brand name | SIRIUS |
| Product designation | Speed monitor |
| Product design / configuration | standstill and speed monitoring |
Safety ratings
| Parameter | Value |
|---|---|
| Safety integrity level (IEC 61508) | 3 |
| Category (EN ISO 13849-1) | 4 |
| PFHd, high demand rate (EN 62061) | 3.4E-9 1/h |
| Hardware fault tolerance (IEC 61508) | 1 |
| Stop category (EN 60204-1) | 0 |
| Safety device type (IEC 61508-2) | Type B |
Monitoring & inputs
| Parameter | Value |
|---|---|
| Emergency-off circuit monitoring | No |
| Protective door monitoring | Yes |
| Position switch monitoring | Yes |
| Safety switch | Yes |
| Magnetically operated switch monitoring | No |
| Start input | Yes |
| Tactile sensor monitoring | No |
| Valve monitoring | No |
| Monitored start-up | Yes |
| Feedback input | Yes |
Outputs & contacts
| Parameter | Value |
|---|---|
| Safety-related instantaneous contacts | 1 |
| Safety-related delayed contacts | 1 |
| Signaling-function instantaneous contacts | 0 |
Electrical
| Parameter | Value |
|---|---|
| Rated insulation voltage | 300 V |
| Rated surge voltage withstand | 4 000 V |
| Control supply voltage type (AC/DC) | AC/DC |
| Required output short-circuit protection (fuse / MCB) | gL/gG: 4 A |
Connection
| Parameter | Value |
|---|---|
| Type of electrical connection | spring-loaded terminals |
| Conductor cross-section, solid | 2x (24 ... 16) |
| Conductor cross-section, stranded | 2x (20 ... 16) |
| Conductor cross-section, with ferrule | 2 x (0.25 ... 1.5 mm²) |
Mechanical
| Parameter | Value |
|---|---|
| Touch protection against electric shock | finger-safe |
| Fastening method | screw and snap-on mounting |
| Mounting position | any |
| Width | 45 mm |
| Height | 107.7 mm |
| Depth | 124.3 mm |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | 0 ... 60 °C |
| Storage temperature range | -20 ... +70 °C |
| Relative humidity, operating | 10 ... 95 % |
| Enclosure protection rating (IP) | IP20 |
| Installation altitude, max. | 2 000 m |
| Shock resistance | 8g / 10 ms |
| Vibration resistance (IEC 60068-2-6) | 10 ... 55 Hz: 0.35 mm |
| Air pressure (SN 31205) | 90 ... 106 kPa |
| EMC / emitted interference standards | EN 60947-5-1 |
Approvals
| Parameter | Value |
|---|---|
| UL approval | Yes |
Specifications
| Parameter | Value |
|---|---|
| Electrical Endurance (Operating Cycles) Typical | 100 000 |
MPN
3TK2810-1KA42