3SE2 100-1E SIEMENS - Limit Switch

• 3SE2 100-1E SIEMENS - Limit Switch

• Type: Limit Switch
• Series: 3SE2
• Actuator: Roller Lever
• Contacts: Snap Action, 1 Normally Open (NO) + 1 Normally Closed (NC)
• Electrical Rating: Often rated for 10A, 500V AC (may vary slightly by specific sub-model/application).
• Housing: Plastic (often with IP65/IP67 protection).
• Function: Converts mechanical motion into electrical signals for machine control, safety interlocks, or counting. 

In simple terms: It's a tough, physical sensor that gets pushed or moved by a machine part, and when it moves, it sends an electrical signal (like turning a light on/off) to tell the machine's control system what's happening. Where it's used: In factories, machine tools, and automation for detecting part presence, door positions, or end-of-travel limits.