Siemens 3SK1211-1BB40

Siemens 3SK1211-1BB40 | SIRIUS Safety Relay Output Expansion

Overview:

The Siemens 3SK1211-1BB40 is an output expansion module from the SIRIUS safety relay series, designed to enhance safety-related circuits by providing additional relay enabling circuits. It features 4 normally open (NO) contacts for safety functions and 1 normally closed (NC) contact for signaling purposes. The module operates at a control supply voltage of 24 V DC and is equipped with screw terminal connections for secure and straightforward wiring.

Key Features:

• Relay Enabling Circuits: 4 NO contacts
• Signaling Circuit: 1 NC contact
• Control Supply Voltage: 24 V DC
• Connection Type: Screw terminals
• Suitable for Safety-Related Circuits
• Configurable for Undelayed or Delayed Operation

Technical Specifications:

• Product Type: Safety Relay Output Expansion
• Part Number: 3SK1211-1BB40
• Insulation Voltage: 300 V
• Degree of Pollution: 3
• Overvoltage Category: 3
• Surge Voltage Resistance: 4,000 V
• Protection Class: IP20
• Shock Resistance: 10g / 11 ms
• Vibration Resistance: 5 to 500 Hz, 0.75 mm
• Maximum Operating Frequency: 360 operations per hour
• Mechanical Service Life: Approximately 10 million operating cycles
• Thermal Current (Ith): 5 A
• Ambient Operating Temperature: -25°C to +60°C
• Dimensions (H x W x D): 100 mm x 22.5 mm x 121.6 mm
• Weight: Approximately 0.224 kg

Safety Standards Compliance:

• IEC 62061 (SIL): SIL 3
• ISO 13849-1 (PL): PL e, Category 4
• IEC 61508 (SIL): SIL 3

Applications:

• Industrial Automation: Enhances safety circuits by providing additional relay outputs for complex safety functions.
• Machine Safety: Ideal for expanding safety relay outputs in machinery requiring multiple safety-related switching contacts.
• Process Control: Suitable for applications necessitating reliable safety relay expansions to ensure operational safety.

Note: For detailed technical information and installation guidelines, refer to the official Siemens documentation for the 3SK1211-1BB40.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply