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The SN04 Inductive Proximity Sensor is a compact, reliable, and cost-effective solution for non-contact metal object detection. Ideal for industrial automation, robotics, 3D printers, and CNC applications, this sensor detects metallic targets within a 4mm sensing range. It operates on a wide 636V DC power supply and is available in NPN or PNP output configurations.
Encased in a durable plastic body with an LED status indicator, the SN04 is easy to mount and integrate into various systems for precise position sensing and object detection.
| Model | Output Type | Output Logic | Cable Type | Detection Distance |
|---|---|---|---|---|
| SN04-N | NPN | Normally Open (NO) | 3-wire | 4mm |
| SN04-P | PNP | Normally Open (NO) | 3-wire | 4mm |
| SN04-N2 | NPN | Normally Closed (NC) | 3-wire | 4mm |
| SN04-P2 | PNP | Normally Closed (NC) | 3-wire | 4mm |
Sensing Distance: 4mm (target: iron 15x15x1mm)
Output Type: NPN / PNP, NO or NC (depending on model)
Voltage Range: 6V36V DC
Response Frequency: 500Hz typical
LED Indicator: Built-in status LED for operation feedback
Wiring Type: 3-wire (Brown = V+, Blue = GND, Black = Signal)
Mounting: M18 flat plastic body with mounting holes
Protection: Short-circuit and reverse polarity protection
| Parameter | Value |
|---|---|
| Operating Voltage | 6 36V DC |
| Output Current | 300mA |
| Detection Distance | 4mm 10% |
| Response Frequency | ~500Hz |
| Output Indicator | LED (Red or Yellow) |
| Housing Material | Plastic |
| Operating Temperature | -25C to +70C |
| Cable Length | Approx. 1.2 meters |
| Mounting | M18 flat rectangular body |
Industrial automation
Endstop sensors for 3D printers & CNC
Robotics & position feedback
Conveyor systems
Object/metal detection systems
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