3TK2828-2BB40

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Overview: Siemens 3TK2828-2BB40 SIRIUS Safety Relay

The Siemens 3TK2828-2BB40 is a safety relay designed for emergency-stop circuits and safety-related control functions. Operating at 24 V DC, it features spring-loaded terminals and a compact 45 mm width. The relay offers two instantaneous normally open (NO) contacts and two delayed NO contacts adjustable from 0.5 to 30 seconds, along with one normally closed (NC) auxiliary contact, providing versatile safety circuit configurations.

Key Features

  • Control Voltage: 24 V DC for industrial safety circuit compatibility.
  • Contacts: 2 NO instantaneous, 2 NO delayed (0.5 to 30 s), and 1 NC auxiliary for signaling.
  • Terminal Type: Spring-loaded terminals for secure connection and ease of wiring.
  • Dimensions: Compact 45 mm width enables space-efficient panel installation.
  • Operating Temperature: -25 to +60 °C suitable for typical industrial environments.
  • Protection: Enclosure rated IP20 for finger-safe operation.
  • Safety Standards: Complies with IEC 61508 SIL3 / ISO 13849-1 PL e, Cat. 4.
  • Additional Features: Adjustable off-delay, automatic start, and monitored start-up inputs.
  • Certifications: TÜV, UL, CSA, BG, SUVA approvals.

Technical Specs

Specification Details
Control Supply Voltage 24 V DC
Contact Configuration 2 NO instantaneous, 2 NO delayed, 1 NC auxiliary
Adjustable Delay 0.5 - 30 seconds (off-delay)
Terminal Type Spring-loaded
Width 45 mm
Operating Temperature Range -25 to +60 °C
Protection Rating IP20
Safety Standards IEC 61508 SIL3 / ISO 13849-1 PL e, Cat. 4
Certifications TÜV, UL, CSA, BG, SUVA
Dimensions (HxWxD) 138.5 mm x 45 mm x 110 mm

Applications / Use Case

The Siemens 3TK2828-2BB40 safety relay is designed for emergency-stop systems and safety control circuits in industrial automation, ensuring high reliability and compliance with strict safety standards for machine and process safety.

3TK2828-2BB40

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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