Technical Datasheet: YHKJ SN04-N2 Inductive Proximity Sensor

This proximity sensor is designed for non-contact detection of metallic objects in industrial automation applications. It features a compact rectangular design with a built-in LED indicator for status monitoring.

1. General Specifications

• Brand: YHKJ

• Model Number: SN04-N2

• Sensor Type: Inductive Proximity Switch

• Detection Object: Metal (Iron, Steel, Copper, Aluminum, etc.)

• Housing Material: Heat-resistant ABS (Plastic)

• Indicator: Red LED (Lights up when an object is detected)

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2. Electrical Characteristics

Parameter	Value
Operating Voltage	10–30V DC
Output Type	NPN
Output State	Normally Closed (NC)
Current Output	Max 200–300mA
Polarity Protection	Integrated

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3. Detection & Performance

• Sensing Distance: Typically 4mm–5mm (depending on target material and size).

• Response Frequency: Approx. 500Hz.

• Hysteresis: <10% of sensing distance.

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4. Wiring Configuration (3-Wire System)

The SN04-N2 follows standard industrial color-coding for its cable:

• BN (Brown): Positive Power Supply (+10V to +30V DC)

• BU (Blue): Negative Power Supply (0V / Ground)

• BK (Black): Output Signal (Connects to Load/Controller)

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5. Mechanical Dimensions & Installation

• Shape: Rectangular (Block type).

• Mounting: Front-facing sensing head with two mounting holes for M3 or M4 screws.

• Protection Rating: Usually IP67 (Dust tight and protected against water immersion).

Sick IQ40-15BPS-KC0 INDUCTIVE PROXIMITY SENSOR