Q: What is the function of a safety relay?

The role of safety relays is to ensure that industrial equipment can stop operating reliably and safely in an emergency, thereby protecting personnel and equipment. Its main functions include:

1. Realize safety control logic: such as dual-channel input monitoring, interlocking, redundancy, etc.

2. Connect safety devices: such as emergency stop buttons, safety light curtains, safety door locks, two-hand buttons, etc.

3. Perform forced disconnection: immediately cut off the power supply to dangerous equipment when a fault or safety condition is triggered.

4. Safety level guarantee: meet the requirements of safety standards such as ISO 13849-1 and IEC 61508.

In short:

👉 Safety relays are the core components of safety control systems and are used to achieve reliable shutdown protection.