Safety relay 3TK28 24V DC 2NO+1NC

Name: Safety relay 3TK28 24V DC 2NO+1NC
Brand: Siemens
Availability: Discontinued

In vendor's stock Discontinued

Price (excl. VAT):

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This price is valid while stock lasts

EAN: 4011209380646

MPN: 3TK2824-1BB40

Package: 1

Estimate delivery time at our warehouse (approx.): By request

Technical Information

Item condition	New
Manufacture name	Safety relay 3TK28 24V DC 2NO+1NC
Brand	Siemens
Categories	Other Products

Packing details

Packing level 1

4011209380646

Description

The Siemens SIRIUS Safety Relay 3TK2824-1BB40 is a discontinued model designed for industrial safety applications, featuring relay enabling circuits (EC) for control systems requiring safety-related functionality. Operating at 24 V DC, the unit incorporates instantaneous enabling contacts with 2 NO (Normally Open) configurations and features a basic autostart design. The relay achieves a maximum Safety Integrity Level (SIL) of 1 and Performance Level (PL) of c in accordance with relevant safety standards.

Housed within durable dimensions of 106.50 x 28.00 x 124.00 mm, the device employs screw terminal connections for secure installation in automation environments while maintaining a compact profile suited to panel integration. With a net weight of 0.245 kg, this basic variant prioritizes efficiency without incorporating delayed enabling or signaling contacts.

Though phased out, it can be supplanted by successor models such as the SIRIUS Safety Relays with part numbers 3SK1111-1AB30 or 3SK1211-1BB40, which offer extended functionalities and updated design enhancements tailored to current technical requirements. Applications typically include safeguarding machinery through reliable electrical isolation mechanisms where moderate SILs are acceptable.