NPN NO Limit Sensor for Fiber Laser Cutting Machines

Industrial-Grade Proximity Switch for X,Y,Z Axis Protection

NOVA LASER NPN NO Limit Sensor is the precise, factory-specification replacement switch that ensures your fiber laser cutter operates with accurate homing and safe travel limits. This is not a generic sensor—it's engineered specifically for the electrical requirements of industrial CNC laser systems.

Critical Machine Safety Component:

• NPN Configuration - Negative-Positive-Negative output (industry standard for Asian-manufactured lasers)
• NO (Normally Open) - Circuit closes only when triggered (failsafe design)
• 24VDC Industrial Rating - Matches standard laser control system voltage
• Shielded Design - Resists electromagnetic interference from plasma, motors, and laser generators

What NPN NO Means for Your Operation:

Normal State (Machine Moving):
• Circuit = OPEN
• No signal to controller
• Axis moves freely within limits

Triggered State (Limit Reached):
• Metal carriage approaches sensor
• Circuit = CLOSES
• Sends 0V signal to CNC controller
• Axis movement stops immediately

Why This Specific Configuration Matters:
✓ Safety Default - If wires break, circuit opens → machine stops (fail-safe)
✓ Controller Compatibility - Works with standard CNC inputs expecting NPN signals
✓ Noise Immunity - Less susceptible to false triggers from electrical interference
✓ Direct F&C Replacement - Matches original equipment wiring exactly