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Siemens 3TK2827-1BB40 | SIRIUS Safety Relay – 3 NO + 1 NC, 24V DC
Overview
The Siemens 3TK2827-1BB40 is a safety relay from the SIRIUS 3TK28 series, designed for monitoring emergency stop buttons, safety gates, and light curtains. With 3 NO + 1 NC contacts and 24V DC control voltage, it provides Category 4, Performance Level e (PL e), and SIL 3 safety ratings, ensuring the highest level of personnel and machine protection.
Key Features
-
Safety Contacts: 3 Normally Open (NO), 1 Normally Closed (NC)
-
Control Voltage: 24V DC
-
Safety Category:
-
EN ISO 13849-1: Category 4 / PL e
-
IEC 62061: SIL 3
-
-
Reset Function: Manual or automatic reset (configurable)
-
Terminals: Screw-type for secure wiring
-
LED Indicators: For status and fault diagnostics
-
Compact Width: Saves space in control cabinets
-
Mounting: DIN rail
Technical Specifications
-
Catalog Number: 3TK2827-1BB40
-
Input Devices Supported: Emergency stop, safety gate switch, 2-hand control
-
Rated Operating Voltage (Ue): 24V DC
-
Switching Capacity: Up to 250V AC / 6 A
-
Response Time: Typically <30 ms
-
Protection Class: IP20
-
Operating Temperature: -25°C to +60°C
-
Dimensions (W x H x D): Approx. 45 mm x 100 mm x 121 mm
-
Certifications: CE, TÜV, cULus, EN ISO 13849-1, IEC 61508
-
Country of Origin: Germany
Applications
-
Emergency Stop Circuits (E-STOP)
-
Safety Door Monitoring
-
Two-Hand Control Systems
-
Light Curtain and Safety Sensor Monitoring
-
Industrial Machine and Process Safety
Why Choose the 3TK2827-1BB40?
-
High Safety Rating: PL e / SIL 3 certified for maximum protection
-
Flexible Configuration: Manual/auto reset for system adaptability
-
Compact Design: Saves valuable cabinet space
-
Diagnostic LEDs: Easy status monitoring and troubleshooting
-
Durable Siemens Reliability: For critical safety circuits
Order Now
Available for fast international delivery.
Description
Siemens 3TK2827-1BB40 | SIRIUS Safety Relay – 3 NO + 1 NC, 24V DC
Overview
The Siemens 3TK2827-1BB40 is a safety relay from the SIRIUS 3TK28 series, designed for monitoring emergency stop buttons, safety gates, and light curtains. With 3 NO + 1 NC contacts and 24V DC control voltage, it provides Category 4, Performance Level e (PL e), and SIL 3 safety ratings, ensuring the highest level of personnel and machine protection.
Key Features
-
Safety Contacts: 3 Normally Open (NO), 1 Normally Closed (NC)
-
Control Voltage: 24V DC
-
Safety Category:
-
EN ISO 13849-1: Category 4 / PL e
-
IEC 62061: SIL 3
-
-
Reset Function: Manual or automatic reset (configurable)
-
Terminals: Screw-type for secure wiring
-
LED Indicators: For status and fault diagnostics
-
Compact Width: Saves space in control cabinets
-
Mounting: DIN rail
Technical Specifications
-
Catalog Number: 3TK2827-1BB40
-
Input Devices Supported: Emergency stop, safety gate switch, 2-hand control
-
Rated Operating Voltage (Ue): 24V DC
-
Switching Capacity: Up to 250V AC / 6 A
-
Response Time: Typically <30 ms
-
Protection Class: IP20
-
Operating Temperature: -25°C to +60°C
-
Dimensions (W x H x D): Approx. 45 mm x 100 mm x 121 mm
-
Certifications: CE, TÜV, cULus, EN ISO 13849-1, IEC 61508
-
Country of Origin: Germany
Applications
-
Emergency Stop Circuits (E-STOP)
-
Safety Door Monitoring
-
Two-Hand Control Systems
-
Light Curtain and Safety Sensor Monitoring
-
Industrial Machine and Process Safety
Why Choose the 3TK2827-1BB40?
-
High Safety Rating: PL e / SIL 3 certified for maximum protection
-
Flexible Configuration: Manual/auto reset for system adaptability
-
Compact Design: Saves valuable cabinet space
-
Diagnostic LEDs: Easy status monitoring and troubleshooting
-
Durable Siemens Reliability: For critical safety circuits
Order Now
Available for fast international delivery.