Details

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Here’s a detailed overview of the Wieland SNA4043K-A (R1.188.1810.0) Safety Relay:

Product Overview:

• Model: SNA4043K-A
• Part Number: R1.188.1810.0
• Manufacturer: Wieland Electric

Key Features:

• Safety Circuit Monitoring: Ensures reliable control of emergency-stop circuits, proximity switches, and optoelectronic protection equipment.
• Control Options: Operates in single-channel or dual-channel mode for flexible applications.
• Reset Functions: Supports automatic reset without reset switch monitoring.
• Cross Circuit Monitoring: Enhances safety by detecting unintended connections.
• Output Configuration:
  • 3 enabling current paths for safety applications
  • 1 signaling output for system status indication

Electrical Specifications:

• Operating Voltage: AC/DC 24V (50-60Hz)
• Connection Type: Pluggable screw terminals for secure wiring

Application Areas:

• Industrial safety systems
• Elevator safety (EN 81-20/50 compliance)
• Emergency stop circuit monitoring
• Optoelectronic protection equipment
• Magnetic and proximity switch control

Wieland Electric offers a range of best-selling safety relays designed for industrial applications. Here are some of their popular models:

Best-Selling Wieland Safety Relays

1. SNO 4062K-A

   • Dual-channel safety relay for emergency stop and safety door monitoring.
   • Features automatic/manual reset and cross-circuit monitoring.

2. SNA 4043K-A

   • Safety relay with three enabling current paths and one signaling output.
   • Ideal for elevator safety and emergency stop applications.

3. SNS 4074K / SNS 4084K

   • Motion relays for standstill and speed monitoring in industrial machines.
   • Works with incremental encoders or proximity sensors for precise control.

4. SVM 4001K

   • Sensorless standstill monitor for 1-phase and 3-phase motors.
   • Ensures safe machine operation without requiring additional sensors.

5. Safe Basic Devices

   • Universal safety relays for monitoring individual safety functions.
   • Supports PL e / SIL 3 safety levels with pluggable terminals.

6. Safe Contact Expansion Relays

   • Designed for expanding safe switching devices and controllers.
   • Provides additional safety contacts for complex systems.

 

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