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Siemens 3SK1112-1BB40

SKU: 3SK1112-1BB40
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Siemens 3SK1112-1BB40 | SIRIUS Safety Relay for Safety Applications

Overview

The Siemens 3SK1112-1BB40 is a SIRIUS safety relay used for monitoring safety functions such as emergency stops, safety gates, and light curtains. This basic unit provides 3 normally open (NO) and 1 normally closed (NC) contact outputs. It is rated for 24V DC operation and features screw terminal connections. The relay is certified up to SIL 3, PL e, and Category 4, making it ideal for high-level safety applications in industrial environments.


Key Features

  • Operating Voltage: 24V DC

  • Contact Configuration: 3 NO + 1 NC

  • Terminal Type: Screw terminals

  • Diagnostic LEDs: Status and function indicators

  • Safety Categories:

    • EN ISO 13849-1: PL e

    • IEC 62061: SIL 3

    • EN 954-1: Category 4

  • Reset Mode: Manual or automatic

  • Response Time: < 30 ms

  • Mounting: DIN rail

  • Width: 22.5 mm


Technical Specifications

  • Catalog Number: 3SK1112-1BB40

  • Switching Capacity (AC): Up to 6 A at 250 V AC

  • Switching Capacity (DC): Up to 6 A at 24 V DC

  • Mechanical Life: >10 million operations

  • Electrical Life: >100,000 operations

  • Ambient Temperature: -25°C to +60°C

  • Protection Class: IP20 (IP40 with housing)

  • Standards: EN ISO 13849-1, IEC 62061, IEC 60947-5-1, EN 50205

  • Weight: Approx. 200 g

  • Country of Origin: Germany


Applications

  • Emergency Stop Circuits

  • Safety Light Curtains

  • Two-Hand Safety Controls

  • Safety Door Monitoring

  • General Machine Safety Systems


Why Choose the 3SK1112-1BB40?

  • Certified High-Level Safety: Complies with SIL 3, PL e, Cat 4

  • Compact Design: Slim 22.5 mm width saves space in control panels

  • Simple Integration: Screw terminals and DIN rail mount for easy installation

  • Flexible Reset Options: Manual or automatic restart

  • Reliable Operation: Long mechanical and electrical life


Order Now

Available for worldwide shipping.

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.
1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.
Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.

Description

Siemens 3SK1112-1BB40 | SIRIUS Safety Relay for Safety Applications

Overview

The Siemens 3SK1112-1BB40 is a SIRIUS safety relay used for monitoring safety functions such as emergency stops, safety gates, and light curtains. This basic unit provides 3 normally open (NO) and 1 normally closed (NC) contact outputs. It is rated for 24V DC operation and features screw terminal connections. The relay is certified up to SIL 3, PL e, and Category 4, making it ideal for high-level safety applications in industrial environments.


Key Features

  • Operating Voltage: 24V DC

  • Contact Configuration: 3 NO + 1 NC

  • Terminal Type: Screw terminals

  • Diagnostic LEDs: Status and function indicators

  • Safety Categories:

    • EN ISO 13849-1: PL e

    • IEC 62061: SIL 3

    • EN 954-1: Category 4

  • Reset Mode: Manual or automatic

  • Response Time: < 30 ms

  • Mounting: DIN rail

  • Width: 22.5 mm


Technical Specifications

  • Catalog Number: 3SK1112-1BB40

  • Switching Capacity (AC): Up to 6 A at 250 V AC

  • Switching Capacity (DC): Up to 6 A at 24 V DC

  • Mechanical Life: >10 million operations

  • Electrical Life: >100,000 operations

  • Ambient Temperature: -25°C to +60°C

  • Protection Class: IP20 (IP40 with housing)

  • Standards: EN ISO 13849-1, IEC 62061, IEC 60947-5-1, EN 50205

  • Weight: Approx. 200 g

  • Country of Origin: Germany


Applications

  • Emergency Stop Circuits

  • Safety Light Curtains

  • Two-Hand Safety Controls

  • Safety Door Monitoring

  • General Machine Safety Systems


Why Choose the 3SK1112-1BB40?

  • Certified High-Level Safety: Complies with SIL 3, PL e, Cat 4

  • Compact Design: Slim 22.5 mm width saves space in control panels

  • Simple Integration: Screw terminals and DIN rail mount for easy installation

  • Flexible Reset Options: Manual or automatic restart

  • Reliable Operation: Long mechanical and electrical life


Order Now

Available for worldwide shipping.

Condition

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

Warranty

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.
Siemens 3SK1112-1BB40

Siemens 3SK1112-1BB40

$405.00
Add to wishlist
Siemens 3SK1112-1BB40

Siemens 3SK1112-1BB40

Your Price:
$405.00
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