OVERVIEW

Official designation: Siemens 3TK2823-1CB30 (SIRIUS, Safety Relay)

Role/Application: Basic unit safety relay for emergency stop and guard door monitoring, featuring two instantaneous safety outputs (2 NO) and a monitored start function, suitable for safety applications up to SIL 3 / PL e.

KEY SPECS SUMMARY

Power: 24 V AC/DC

Interfaces / Ports: Screw terminals, Two-channel input

Indicators: Three LEDs (Refer to the latest manufacturer manual.)

Operating Temp: -25 to 60 degrees C (Ambient)

Platform / Compatibility: Category 4 / SIL 3 / PL e, IP40/IP20 protection

Limit: Safety Contacts: 2 NO instantaneous, Mechanical life: 10 million cycles

Lifecycle: Product Discontinued (Successor is 3SK1111-1AB30)

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the rated switching capacity for the safety contacts at 230 V AC?

A: The maximum switching current for the NO contacts is 5 A at 230 V AC (AC-15).

Wiring & Installation:

Q: What are the primary dimensions of the 3TK2823-1CB30 unit?

A: The dimensions are 120 millimeters high, 22.5 millimeters wide, and 120 millimeters deep.

Troubleshooting & Compatibility:

Q: What is the fault detection capability of the safety relay's ON circuit?

A: The 3TK2823-1CB30 monitors the ON circuit for short-circuits to ensure reliable operation.

Replacement & Upgrades:

Q: Which product is the preferred successor for the discontinued 3TK2823-1CB30 safety relay?

A: The preferred successor is the Siemens 3SK1111-1AB30 safety relay.