Siemens 3TK2842-2BB42

Part number 3TK28422BB42 from Siemens. KKM Solutions quotes this part with pricing and availability confirmed per order.

The Siemens 3TK2842-2BB42 is a SIRIUS safety relay from the 3TK28 series, designed for monitoring safety-related circuits in industrial machinery and automation systems. It features electronic enabling circuits (EC) with one instantaneous enabling circuit and one time-delayed enabling circuit adjustable from 0.5 to 30 seconds, enabling staged shutdown of dangerous movements such as motor coast-down. The unit operates on 24 V DC control supply and uses 22.5 mm-wide spring-type (cage-clamp) terminals for fast, vibration-resistant wiring on a standard DIN rail. It supports autostart and monitored start modes and achieves a maximum Safety Integrity Level of SIL 3 according to IEC 61508 and Performance Level PL e per EN ISO 13849-1. Typical applications include emergency-stop monitoring, safety door interlocks, and light-curtain integration in production lines, presses, and conveyor systems. Item Details Brand Name: Siemens Manufacturer: Siemens AG Item Type Name: Safety Relay Product Family / Series: SIRIUS 3TK28 Safety Relays Series: 3TK2842 Ean: 4011209533448 Hs Code: 85364900 Product Specifications function: Safety relay with electronic enabling circuits (EC) control_supply_voltage: 24 V DC enclosure_width: 22.5 mm terminal_type: Spring-type (cage clamp) instantaneous_enabling_circuits: 1 (1 NO) delayed_enabling_circuits: 1 (1 NO), 0.5–30 s adjustable signaling_circuits: 0 start_mode: Autostart / monitored start device_type: Standard device max_safety_integrity_level: SIL 3 (IEC 61508) performance_level: PL e (EN ISO 13849-1) mounting: DIN rail Additional Details Country of Origin*: Germany Lifecycle Status: Discontinued by manufacturer *Country of origin may vary.